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Talks

  1. 2022

    1. Connor, B.G. 2022. Understanding infrastructure risk due to permafrost thaw to inform decision-making in Point Lay, Alaska. Presented at NNA Community Office Meeting, Anchorage, AK, 15-17 November. (Presentation)
    2. Connor, B.G., and Peirce J.L. 2022. Understanding infrastructure risk due to permafrost thaw to inform decision-making in Point Lay, Alaska. Presented at IARPC Coastal Resilience Collaborations Team Meeting. Online, 2 November. (Presentation)
    3. Walker, D.A., Bartsch, A., Bergstedt, H., Bhatt, U.S., Brown, J., Daanen, R., Epstein, E., Frost, G.V., Jones, B.M. & (...) Zwieback, S. 2022. 70-year retrospective of remote sensing applied to cumulative impact assessments, Prudhoe Bay Oilfield, Alaska. (Presentation)

  1. 2021

    1. Bergstedt, H., Jones, B., Walker, D., Peirce, J, Bartsch, A. and Pointner, G. 2021. Quantifying the spatial and temporal influence of infrastructure on seasonal snow melt timing and its influence on vegetation productivity and early season surface water cover in the Prudhoe Bay Oilfields. EGU General Assembly, Online, 19-30 April 2021, EGU21-10296. doi:10.5194/egusphere-egu21-10296, 2021 (Presentation)
    2. Walker, D.A., Raynolds, M.K., Kanevskiy, M.Z., Shur, Y., Romanovsky, V.E., Jones, B.M., Buchhorn, M., Jorgenson, M.T., Sibík, J., Breen, A.L., Watson-Cook, E., Bergstedt, H., Liljedahl, A., Daanen, R., Nikolsky, D., Connor, B. and Peirce, J.L. 2021. Cumulative impacts of a gravel road and climate change in an ice-wedge polygon landscape, Prudhoe Bay Oilfield, AK. Arctic Science Summit Week 2021 (Session 19), Online, 19-26 March. (Presentation)

  1. 2020

    1. Bergstedt, H., Jones, B, Walker, D.A. Farquharson, L., Breen, A. and Hinkel, K. 2020. Mapping lake drainage and drained lake basins around Point Lay, Alaska using multi-source remote sensing data. EGU General Assembly 2020, Online, 4-8 May 2020, EGU2020-11919. doi:10.5194/egusphere-egu2020-11919 (Presentation)
    2. Walker, D.A. and Peirce, J.L. 2020. Navigating the New Arctic with a focus on ground ice: Landscape evolution and adapting to change in ice-rich permafrost systems (NNA-IRPS). IARPC Permafrost Collaborations Team Meeting, Online, 19 February. (Presentation)

  1. 2019

    1. Walker, D.A. 2019. Landscape evolution and adapting to change in ice-rich permafrost systems (NNA-IRPS). Institute of Arctic Biology (IAB) Life Sciences Seminar Series. University of Alaska Fairbanks, Fairbanks, AK, October 25. (Presentation)
    2. Walker, D.A. 2019. Landscape evolution and adapting to change in ice-rich permafrost systems (NNA-IRPS). Bridging Science, Art, and Community in the New Arctic, UVA, Charlottesville, Virginia, 23-25 September. (Presentation)
    3. Walker, D.A., Peirce, J.L., Kumpula, T., Romanovsky, V., Schweitzer, P. & Vincent, W. 2019. RATIC-TMOSAiC connections and opportunities. Presented at Arctic Science Summit Week, Arkhangelsk, Russia, 22-30 May. (Presentation)

  1. 2017

    1. Epstein, H., Walker, D., Sibik, J., Chasnikova, S., Frost, G., Leibman, M., Matyshak, G. & Raynolds, M. 2017. Vegetation community and ecosystem properties along the Eurasian Arctic Transect (EAT). Presented at Arctic Science Summit Week, Prague, CZ, 31 March-7 April. (Abstract O 065, p. 139) (Presentation)
    2. Goncharova, O., Matyshak, G. & Bobrik, A. 2017. Climate and soil temperature variation in the forest-tundra transition near Nadym, West Siberia, Russia. Presented at Arctic Science Summit Week, Prague, CZ, 31 March-7 April. (Abstract O 067, p. 139) (Presentation)
    3. Kumpula, T., Macias-Fauria, M., Skarin, A., Verdonen, M., Korpelainen, P. and Forbes, B. 2017. Drivers of landcover changes in tundra reindeer pastures of Yamal, west Siberia. Presented at Arctic Science Summit Week, Prague, CZ, 31 March-7 April. (Abstract O 152, p. 168) (Presentation)
    4. Kumpula, T., Verdonen, M., Korpelainen, P. & Forbes, B. 2017. Cryogenic landslide activity in early 1970s and late 1980s in central Yamal, Russia, observed from satellite image time series. Presented at Arctic Science Summit Week, Prague, CZ, 31 March-7 April. (Abstract O 068, p. 140) (Presentation)
    5. Kuznetsova, E. 2017. Effect of climate change and resource scarcity on road and railways infrastructure: Norwegian case study. Presented at Arctic Science Summit Week, Prague, CZ, 31 March-7 April. (Abstract O 116, p. 168) (Presentation)
    6. Leibman, M.O., Khomutov, A.V., Mullanurov, D., Orekhov, P., Ponomareva, O. & Gravis, A. 2017. ArcGIS interactive map for EAT database. NASA Yamal Synthesis project meeting, Prague, CZ, April 6, 2017. (Presentation)
    7. Matyshak, G., Walker, D.A., Epstein, H.E., Leibman, M.O., Moskalenko, N.G. & Orekhov, P.T. 2017. Characteristics of cryogenic soils along the latitudinal transect in the northwestern Siberia, Russia. Presented at Arctic Science Summit Week, Prague, CZ, 31 March-7 April. (Abstract O 066, p. 141) (Presentation)
    8. Orekhov, P., Slagoda, E. & Popov, K. 2017. Factors of spatial differentiation of cryogenic geosystems of the Bely Island arctic tundras. Presented at Arctic Science Summit Week, Prague, CZ, 31 March-7 April. (Abstract O 069, p. 141) (Presentation)
    9. Walker, D.A., Kanevskiy, M., Shur, Y., Raynolds, M., Buchhorn, M. and Matyshak, G. 2017. Rapid transitions caused by infrastructure and climate, Prudhoe Bay oilfield, Alaska, USA. Presented at Arctic Science Summit Week, Prague, CZ, 31 March-7 April. (Abstract O 115, p. 171) (Presentation)
    10. Walker, D.A., Sibik, J., Chasnikova, S., Epstein, H.E., Ermokhina, K., Frost, G.V., Kaarlejarvi, E., Khitun, O., Khumotov, A., Kuss, P., Leibman, M.O., Matyshak, G., Moskalenko, N., Orekhov, P. & Raynolds, M.K. 2017. Vegetation of the European Arctic Transect (EAT), Yamal Peninsula and Franz Jozef Land, Russia. Presented at Arctic Science Summit Week, Prague, CZ, 31 March-7 April. (Abstract O 064, p. 142) (Presentation)

  1. 2016

    1. Dvornikov, Y. and Khomutov, A. 2016. The impact of permafrost thaw and climatic fluctuations on the geochemistry of thermokarst lakes of Yamal peninsula. EGU General Assembly 2016. Vienna, Austria, April 17-22. (Geophysical Research Abstracts EGU2016-851) (Presentation)
    2. Epstein H.E. 2016. Patterns and dynamics of arctic tundra plant diversity and relations to ecosystem processes. Presented at URPP Global Change and Biodiversity Conference, Monte Veritá; Ascona, Switzerland, Aug 28-Sept 1. (Presentation)
    3. Epstein, H.E., Walker, D.A., Frost, G.V., Raynolds, M.K., and Bhatt U.S. 2016. Vegetation Biomass, NDVI, and LAI along the Eurasian Arctic Transect. In: F. Günther and A. Morgenstern (eds.), XI. International Conference On Permafrost - Book of Abstracts, 20-24 June 2016, Potsdam, Germany. Bibliothek Wissenschaftspark Albert Einstein, pp. 900-901. doi:10.2312/GFZ.LIS.2016.001 (Abstract, pp. 900-901) (Presentation)
    4. Kumpula, T. and Forbes, B.C. 2016. Changing pasture land, rapid land cover changes and their impacts on Nenets reindeer herding on the Yamal Peninsula, Russia. Presented at International Arctic Science Committee ICARP III Working Group meeting on Infrastructure in the Arctic (and elsewhere) as a Social and Ecological Challenge. Vienna, Austria, January 15-16. (Presentation)
    5. Matyshak, G., Goncharova, O., Boric, A., Sukhova, D., Petrzhik, N. and Kireev, R. 2016. Heat line in permafrost - a large experiment of transformation of the Arctic ecosystems. In: F. Günther and A. Morgenstern (eds.), XI. International Conference On Permafrost - Book of Abstracts, 20-24 June 2016, Potsdam, Germany. Bibliothek Wissenschaftspark Albert Einstein, pp. 177-178. doi:10.2312/GFZ.LIS.2016.001 (Abstract, pp. 177-178) (Presentation)
    6. Shur, Y., Kanevskiy, M., Walker, D.A., Jorgensen, T., Buchhorn, M., Raynolds, M.K. and Toniolo, H. 2016. Permafrost-Related Causes and Consequences of the Sagavanirktok River Delta Flooding in Spring 2015. In: F. Günther and A. Morgenstern (eds.), XI. International Conference On Permafrost - Book of Abstracts, 20-24 June 2016, Potsdam, Germany. Bibliothek Wissenschaftspark Albert Einstein, pp. 1014-1016. doi:10.2312/GFZ.LIS.2016.001 (Abstract, pp. 1014-1016) (Presentation)
    7. Walker, D.A. 2016. NASA ABoVE All-scientists Presentation: A hierarchic framework for studying Arctic vegetation. Presented at NASA ABoVE All-scientists Meeting, Anchorage, AK, January 19-22. (Presentation)
    8. Walker, D.A., Epstein, H.E., Raynolds, M.K., Buchhorn, M., Kumpula, T., Forbes, B.C., Leibman, M.O., Khomutov, A., Matyshak, G.V., Curry, T., Kofinas, G., Romanovsky, V., Shur, Y. and Kanevskiy, M.Z. 2016. Yamal LCLUC Synthesis. Presented at Science Team Meeting, Bethesda, MD, April 18-19. (Presentation)
    9. Walker, D.A., Kanevskiy, M., Shur, Y., Raynolds, M.K. and Buchhorn, M. 2016. Effects of infrastructure, climate change, and icewedge degradation, Prudhoe Bay oilfield, Alaska. Presented at AGU Fall Meeting, San Francisco, CA, December 12-16. (Abstract) (Presentation)

  1. 2015

    1. Bhatt, U.S., Walker, D.A., Raynolds, M.K., Bieniek, P.A., Epstein, H. E., Comiso, J.C., Pinzon, J.E., Tucker, C.J., Steele, M.A., Ermold, W. and Zhang, J. 2015. Changing seasonality of tundra vegetation in relationship to climatic variables. IARC Summer School 2015. Fairbanks, AK, May 2015. (Presentation)
    2. Buchhorn, M., Curry, T., Kanevskiy, M., Raynolds, M.K., Shur, Y. and Walker, D.A. 2015. Landscape,  permafrost, and social change in the Prudhoe Bay region, Alaska: Snapshots from the NSF-ArcSEES project. Institute of Arctic Biology (IAB) Life Sciences Seminar Series. University of Alaska Fairbanks, Fairbanks, AK,, January 23. (Presentation)
    3. Epstein, H.E., Bhatt, U.S., Raynolds, M.K., Walker, D.A. and Reichle, L.M. 2015. Circumpolar dynamics of Arctic tundra vegetation in relation to temperature trends. Presented at AGU Fall Meeting. San Francisco, CA, December 14 - 18. (Abstract GC13K-04) (Presentation)
    4. Romanovsky, V., Nicolsky, D., Marchenko, S., Cable, W. and Panda, S. 2015. Merging Field Measurements and High Resolution Modeling to Predict Possible Societal Impacts of Permafrost Degradation. Presented at AGU Fall Meeting. San Francisco, CA, December 14 - 18. (Abstract B42C-04) (Presentation)
    5. Rousseau, D-D. (convenor) 2015. AGU-EGU Great Debate on "Sustainable Development of the Arctic". Presented at AGU Fall Meeting. San Francisco, CA, December 14 - 18. (Abstract U21A) (Presentation)
    6. Yu, Q., Shiklomanov N.I., Streletskiy, D.A., Engstrom R. and Epstein H.E. 2015. Detecting anthropogenic and climate change induced land cover and land use change in the vicinity of an oil/gas facility in northwestern Siberia, Russia. Presented at AGU Fall Meeting. San Francisco, CA, December 14 - 18. (Abstract GC33F-04) (Presentation)

  1. 2014

    1. Bhatt, U.S., Walker, D.A., Raynolds, M.K., Bieniek, P.A., Epstein, H.E., Comiso, J.C., Pinzon, J.E., Tucker, C.J., Steele, M.A., Ermold, W. and Zhang, J. 2014. Inter- and intra-annual variability of NDVI and correlations to large-scale circulation patterns, sea ice, snow and cloud cover. Presented at ArcticBiomass Workshop. Fairbanks, AK, September 2-3. (Presentation)
    2. Epstein H.E. 2014. Biomass, NDVI, and LAI Data and Relationships Across Spatial Scales in Arctic Tundra. Presented at ArcticBiomass Workshop. Fairbanks, AK, September 2-3. (Presentation)
    3. Epstein, H.E., Bhatt, U.S., Raynolds, M.K, Walker, D.A. and Reichle, L.M. 2014. Recent temporal dynamics of arctic tundra vegetation within the context of spatial biomass-temperature relationships. Presented at Arctic Change 2014. Ottawa, ON, December 8-12. (Abstract) (Presentation)
    4. Epstein, H.E., Frost, G.V., Matyshak, G.V., Walker, D.A. and Meakem, V.M. 2014. The influences of land surface properties on soil thermal regimes in the Low Arctic of northwestern Siberia. Presented at AGU Fall Meeting. San Francisco, December 15 - 19. (Abstract) (Presentation)
    5. Khitun, O., Koroleva, T., Chinenko, S., Petrovsky, V., Zverev, A., Pospelova, E. and Pospelova, I. 2014. Biodiversity research based on local flora approach in Russian Arctic. Presented at Arctic Change 2014. Ottawa, ON, December 8-12. (Abstract) (Presentation)
    6. Khomutov, A., Leibman, M., Gubarkov, A., Dvornikov, Y., Khitun, O. and Mullanrov, D. 2014. Landslide and permafrost regimes near the Bovanenkovo gas field, Central Yamal, Russia. Presented at Arctic Change 2014. Ottawa, ON, December 8-12. (Abstract) (Presentation)
    7. Leibman, M.O., Kizyakov, A.I., Plehanov, A.V., Streletskaya, I.D. and Melnikov, V.P. 2014. Deep crater in Central Yamal, West Siberia, Russia as a new permafrost feature in response to local climate fluctuations. Presented at Arctic Change 2014. Ottawa, ON, December 8-12. (Abstract) (Presentation)
    8. Raynolds, M.K., Walker, D.A., Epstein, H.E. and Buchhorn, M. 2014. Biomass and NDVI circumpolar relationship. Presented at ArcticBiomass Workshop. Fairbanks, AK, September 2-3. (Presentation)
    9. Walker, D.A, Bhatt, U.S., Muchhorn, M., Comiso, J., Epstein, H.E., Ermokhina, K., Forbes, B., Frost, G., Heim, B., Kofinas, G., Khumotov, A., Kumpula, T., Leiman, M., Matyshak, G., Pinzon, J., Raynolds, M.K., Romanovsky, V., Tucker, C., Wirth, L. and Yu, Q. 2014. SYN-YAMAL: A synthesis of remote-sensing studies, ground observations and modeling to understand the social-ecological consequences of climate change and resource development on the Yamal Peninsula, Russia, and relevance to the circumpolar Arctic. Presented at Arctic Change 2014. Ottawa, ON, December 8-12. (Presentation)
    10. Walker, D.A. 2014. Arctic Vegetation Sampling: Vegetation sampling, Biomass, NDVI, LAI, Zonal concept, Arctic Vegetation Archive. Presented at ArcticBiomass Workshop. Fairbanks, AK, September 2-3. (Presentation)

  1. 2013

    1. Bhatt, U.S., Walker, D.A. Bieniek, P.A. Raynolds, M.K. Epstein, H.E. Comiso, J.C. Pinzon, J. Tucker, C.J. 2013. Links between Pan-Arctic Tundra Vegetation Change and Climate. Presented at Seminar at Geophysical Institute, University of Bergen. Bergen, Norway February 20. (Presentation)
    2. Bhatt, U.S., Walker, D.A., Bieniek, P.A., Raynolds, M.K., Epstein, H.E., Comiso, J.C., Pinzon, J., Tucker, C.J. 2013. Pan-Arctic Tundra Vegetation Change and it's Links to Climate. Presented at Dpto. Biologia Vegetal II, Univ. Complutense. Madrid, Spain February 6. (Presentation)
    3. Breen, A., Raynolds, M.K., Hennekens, S.M., Walker, D.A. 2013. Toward an Arctic Alaska Prototype for the Arctic Vegetation Archive. Presented at Arctic Vegetation Archive. Krakow, Poland . (Presentation)
    4. Bültmann, H., Daniëls, F.J.A. 2013. Greenland Data stored in Münster. Presented at Arctic Vegetation Archive. Krakow, Poland 14-16 April. (Presentation)
    5. Cherosov, M.M., Matveyeva, N.V., Troeva, E.I., Gogoleva, P.A., Telyatnikov, M.Y., Pestryakova, L.A. 2013. How to use the initiatives of the Russian Government in the field of science for vegetation biodiversity study in the Russian Arctic (propositions of Russian partners). Presented at Arctic Vegetation Archive. Krakow, Poland 14-16 April. (Presentation)
    6. Daniëls, F.J.A. 2013. Some reflections on the realization of an international pan-Arctic vegetation classification. Presented at Arctic Vegetation Archive. Krakow, Poland 14-16 April. (Presentation)
    7. Ermokhina, K. 2013. Yamal and Gydan vegetation datasets. Presented at Arctic Vegetation Archive. Krakow, Poland 14-16 April. (Presentation)
    8. Fosaa, A.M., Daniëls, F.J.A., Heiðmarsson, S., Jónsdóttir, I.S., Talbot, S.S. 2013. Boreal Tundra Vegetation of the North Atlantic and North Pacific Regions. Presented at Arctic Vegetation Archive. Krakow, Poland 14-16 April. (Presentation)
    9. Fosaa, A.M., Nilsen, L., Jónsdóttir, I.S. 2013. Scandinavian possibilities. Presented at Arctic Vegetation Archive. Krakow, Poland 14-16 April. (Presentation)
    10. Ickert-Bond, S. 2013. CAFF Flora Group Meeting Summary. Presented at Arctic Vegetation Archive. Krakow, Poland 14-16 April. (Presentation)
    11. Jiménez-Alfaro, B., Apostolova, I., ?arni, A., Chrytrý, M., Csiky, J., Dengler, J., Dimopoulos, P., Font, X., Golub, V., Hennekens, S.M., Jandt, U., Jansen, F., K?cki, Z., Kevey, B., Krstonosi?, D., Landucci, F., Lysenko, T., Martynenko, V., Mucina, L., Rodwell, J.S., Schaminée, J., Šibík, J., Šilc, U., Sorokin, A., Stan?i?, Z., Willner, W., Yamalov, S. 2013. Towards a European vegetation database and a parameterized overview of European vegetation. Presented at Arctic Vegetation Archive. Krakow, Poland . (Presentation)
    12. Khitun, O.V., Koroleva, T.M., Chinenko, S.V., Petrovsky, V.V., Zverev, A.A., Pospelova, E., Pospelov, I. 2013. Application of Russian Arctic local flora database concept to the issues of biodiversity conservation. Presented at Arctic Vegetation Archive. Krakow, Poland 14-16 April. (Presentation)
    13. Koroleva, N. 2013. The tundra zone of Kola Peninsula on the syntaxonomical 'conjunction' in the European Arctic. Presented at Arctic Vegetation Archive. Krakow, Poland 14-16 April. (Presentation)
    14. Kulyugina, E.E. 2013. Vegetation of the Vasyaha River Basin (Yugorsky Peninsula, Ridge Pay-Khoy) - Case study of vegetation diversity in the European sector of the Russian Arctic. Presented at Arctic Vegetation Archive. Krakow, Poland 14-16 April. (Presentation)
    15. Lashchinskiy, N. 2013. Spatial vegetation structure of southern tundra from three sectors of Siberian Arctic. Presented at Arctic Vegetation Archive. Krakow, Poland 14-16 April. (Presentation)
    16. Lee, M.T. 2013. VegBank: A permanent, open-access archive for vegetation plot data. Presented at Arctic Vegetation Archive. Krakow, Poland 14-16 April. (Presentation)
    17. Lárussen, K., Barry, T., Gill, M. 2013. Thoughts from CAFF regarding the AVA in relationship to the future of Arctic biodiversity monitoring. Presented at Arctic Vegetation Archive. Krakow, Poland 14-16 April. (Presentation)
    18. Lévesque, E., Boulanger-Lapointe, N., Henry, G.H.R., Mackenzie, W. 2013. Vegetation data available for classification of Canadian Arctic sites. Presented at Arctic Vegetation Archive. Krakow, Poland 14-16 April. (Presentation)
    19. MacKenzie, W. 2013. A data compilation of Canadian Arctic vegetation releve data and preliminary classification. Presented at Arctic Vegetation Archive. Krakow, Poland 14-16 April. (Presentation)
    20. Matveyeva, N.V., Cherosov, M.M., Telyatnikov, M.Y. 2013. The Russian Input to the Arctic Vegetation Archive. Presented at Arctic Vegetation Archive. Krakow, Poland 14-16 April. (Presentation)
    21. McLennan, D. 2013. CHARS and CNVC Support and Operationalization. Presented at Arctic Vegetation Archive. Krakow, Poland 14-16 April. (Presentation)
    22. Novakovskiy, A. 2013. Approaches to storing and analyzing geobotanical data. Presented at Arctic Vegetation Archive. Krakow, Poland 14-16 April. (Presentation)
    23. Pellisier, L., Stewart, L. 2013. The AVA as a source for understanding spatial distribution of Arctic biodiversity. Presented at Arctic Vegetation Archive. Krakow, Poland 14-16 April. (Presentation)
    24. Raynolds, M.K., Breen, A.L., Hennekens, S.M., Walker, D.A., Elven, R., Belland, R., Konstantinova, N.A., Kristinsson, H. 2013. The Pan-Arctic Species List (PASL). Presented at Arctic Vegetation Archive. Krakow, Poland 14-16 April. (Presentation)
    25. Razzhivin, V.Y. 2013. Vegetation Datasets for Chukotka. Presented at Arctic Vegetation Archive. Krakow, Poland 14-16 April. (Presentation)
    26. Schaepman-Strub, G., Iturrate, M., Furrer, R. 2013. Towards assessing biodiversity feedbacks to climate in the Arctic … and potential future applications of the AVA. Presented at Arctic Vegetation Archive. Krakow, Poland 14-16 April. (Presentation)
    27. Telyatnikov, M.Y., Troeva, E.I., Cherosov, M.M., Pristyazhnyuk, S.A., Gogoleva, P.A., Pestryakova, L.A. 2013. Plant communities of southern hypoarctic tundra of the Anabar River basin (North-West Yakutia). Presented at Arctic Vegetation Archive. Krakow, Poland 14-16 April. (Presentation)
    28. Thannheiser, D. 2013. Phytosociology of Spitsbergen. Presented at Arctic Vegetation Archive. Krakow, Poland 14-16 April. (Presentation)
    29. Thannheiser, D. 2013. Phytosociology of Western Canadian Arctic. Presented at Arctic Vegetation Archive. Krakow, Poland 14-16 April. (Presentation)
    30. Walker, D.A. 2013. International Arctic Vegetation Database. Presented at IASC Terrestrial Working Group Meeting. Krakow, Poland 13 April. (Presentation)
    31. Walker, D.A. 2013. Concluding Day. Presented at Arctic Vegetation Archive. Krakow, Poland 14-16 April. (Presentation)
    32. Walker, D.A. 2013. The Arctic Vegetation Archive Workshop, 14-16 April 2013, Kraków, Poland: Welcome and Agenda. Presented at Arctic Vegetation Archive. Krakow, Poland 14-16 April. (Presentation)
    33. Walker, D.A. 2013. Fred Daniëls key role through 21 years of History of the AVA. Presented at Arctic Vegetation Archive. Krakow, Poland 14-16 April. (Presentation)
    34. Walker, D.A. 2013. The Arctic Vegetation Archive (AVA). Presented at Arctic Science Summit Week. Krakow, Poland 13-19 April. (Presentation)
    35. Walker, D.A. 2013. Recovery and archiving of key Arctic Alaska vegetation map and plot data for long-term vegetation analyses: A proposal to NASA for data recovery for the Arctic-Boreal Vulnerability Experiment (Pre-ABoVE). Presented at Arctic Vegetation Archive. Krakow, Poland 14-16 April. (Presentation)
    36. Walker, D.A. 2013. Arctic Vegetation Archive: History and goals for the workshop. Presented at Arctic Vegetation Archive. Krakow, Poland 14-16 April. (Presentation)
    37. Walker, M.D. 2013. 21 years to common ground: An extremely short talk about a long time (in human years) and a short time (in earth years). Presented at Arctic Vegetation Archive. Krakow, Poland 14-16 April. (Presentation)

  1. 2012

    1. Bhatt, U.S., Walker, D.A., Bieniek, P.A., Raynolds, M.K., Epstein, H.E., Comiso, J.C., Pinzon, J., Tucker, C.J. 2012. Drivers of Recent Pan-Arctic Tundra Vegetation Variability and Change. Presented at From Knowledge to Action, 2012 IPY Conference, Montreal, Quebec, May 22-27, 2012. (Presentation)
    2. Bieniek, P.A., Bhatt, U.S., Walker, D.A., Raynolds, M.K., Comiso, J.C., Epstein, H.E., Pinzon, J.C., Comton, J.T., Thoman, R.L., Tran, H., Molders, N., Ermold, W., Zhang, J., Steele, M. 2012. Alaska Coastal Tundra Vegetation's Links to Climate. Presented at AGU Fall Meeting, San Francisco, CA December 3-7. (Presentation)
    3. Epstein, H.E., Raynolds, M.K., Walker, D.A., Bhatt, U.S., Tucker, C.J., Pinzon, J.E., Frost, G.V., Yu, Q., Jia, G.J., Zeng, H. 2012. Recent dynamics of arctic tundra vegetation: Remote sensing, field observations, and modeling. Presented at From Knowledge to Action, 2012 IPY Conference, Montreal, Quebec, May 22-27, 2012. (Presentation)
    4. Epstein, H.E., Yu, Q., Frost, G.V., Raynolds, M.K., Walker, D.A., Bhatt, U.S., Tucker, C.J., Pinzon, J.E. 2012. Climate and grazing influences on circumpolar dynamics of arctic tundra vegetation. Presented at 12th Circumpolar Remote Sensing Symposium, Levi, Finland, May 14-18, 2012. (Presentation)
    5. Ermokhina, K. 2012. Phytoindication of Landslide Disturbances in the Central Yamal. Presented at Third Yamal Land-Cover Land-Use Change Workshop, Rovaniemi, Finland, May 19-20, 2012. (Presentation)
    6. Forbes, B.C. 2012. Summary of the Finnish contribution to the LCLUC project. Presented at Third Yamal Land-Cover Land-Use Change Workshop, Rovaniemi, Finland, May 19-20, 2012. (Presentation)
    7. Frost, G.V., Epstein, H.E., Matyshak, G., Ermokhina, K., Walker, D.A. 2012. Summary of Kharp field expedition, July 2011. Presented at Third Yamal Land-Cover Land-Use Change Workshop, Rovaniemi, Finland, May 19-20, 2012. (Presentation)
    8. Frost, G.V., Epstein, H.E., Walker, D.A., Matyshak, G., Ermokhina, K. 2012. Feedbacks between shrubland development and permafrost in the northwest Siberian Low Arctic. Presented at 12th Circumpolar Remote Sensing Symposium, Levi, Finland, May 14-18, 2012. (Presentation)
    9. Frost, G.V., Epstein, H.E., Walker, D.A., Matyshak, G., Ermokhina, K. 2012. Feedbacks between shrubland development and permafrost in the northwest Siberian Low Arctic. Presented at From Knowledge to Action, 2012 IPY Conference, Montreal, Quebec, May 22-27, 2012. (Presentation)
    10. Heim, B., Bartsch, A., Buchhorn, M. 2012. I. SATELLITE-BASED PRODUCTS, EVALUATION - II. Up-Scaling, Calibration and Experiments-Yamal. Presented at Third Yamal Land-Cover Land-Use Change Workshop, Rovaniemi, Finland, May 19-20, 2012. (Presentation)
    11. Heim, B., Bartsch, A., Elger, K., Permafrost Team, E.D. 2012. Circum-Arctic Satellite-Based Service. Presented at 12th Circumpolar Remote Sensing Symposium, Levi, Finland, May 14-18, 2012. (Presentation)
    12. Khomutov, A., Leibman, M.O., Moskalenko, N., Orekhov, P., Mullanurov, D. 2012. Database of EAT permafrost information. Presented at Third Yamal Land-Cover Land-Use Change Workshop, Rovaniemi, Finland, May 19-20, 2012. (Presentation)
    13. Kumpula, T., Forbes, B.C., Stammler, F., Meschtyb, N. 2012. Remote sensing and gis analysis of anthropogenic and natural land use and land cover changes in tundra environments in Bovanenkovo gas field on Yamal Peninsula, Russia. Presented at Third Yamal Land-Cover Land-Use Change Workshop, Rovaniemi, Finland, May 19-20, 2012. (Presentation)
    14. Leibman, M.O., Gubarkov, A.A., Khitun, O.V., Khomutov, A.V., Moskalenko, N.G., Orekhov, P.T. 2012. Summary of the Russian contribution to the LCLUC project. Presented at Third Yamal Land-Cover Land-Use Change Workshop, Rovaniemi, Finland, May 19-20, 2012. (Presentation)
    15. Leibman, M.O., Khitun, O.V., Khomutov, A.V., Moskalenko, N.G., Orekhov, P.T. 2012. Active layer and permafrost boreholes along the Yamal transect. Presented at Third Yamal Land-Cover Land-Use Change Workshop, Rovaniemi, Finland, May 19-20, 2012. (Presentation)
    16. Matyshak, G.V. 2012. Soils investigations along the EAT. Presented at Third Yamal Land-Cover Land-Use Change Workshop, Rovaniemi, Finland, May 19-20, 2012. (Presentation)
    17. Orekhov, P., Leibman, M.O. 2012. General Environment and Climate of the EAT. Presented at Third Yamal Land-Cover Land-Use Change Workshop, Rovaniemi, Finland, May 19-20, 2012. (Presentation)
    18. Raynolds, M.K., Walker, D.A., Kofinas, G.P., Ambrosius, K.J. 2012. Sixty years of landscape change within an Artic Oilfield, Prudhoe Bay, Alaska. Presented at Third Yamal Land-Cover Land-Use Change Workshop, Rovaniemi, Finland, May 19-20, 2012. (Presentation)
    19. Ukraintseva, N.G., Korobova, T.A. 2012. Summary of willow studies in the Bovanenkovo region. Presented at Third Yamal Land-Cover Land-Use Change Workshop, Rovaniemi, Finland, May 19-20, 2012. (Presentation)
    20. Walker, D.A. 2012. Summary of the IPY Greening of the Arctic Project. Presented at Institute of Arctic Biology Seminar. Fairbanks, AK April 6. (Presentation)
    21. Walker, D.A. 2012. The idea of Greenland transects in the context of the IPY Greening of the Arctic project and Greenland biodiversity. Presented at International Arctic Vegetation Database Workshop. Roskilde, Denmark May 29-31. (Presentation)
    22. Walker, D.A. 2012. Summary of the Greening of the Arctic Project. Presented at Third Yamal Land-Cover Land-Use Change Workshop, Rovaniemi, Finland, May 19-20, 2012. (Presentation)
    23. Walker, D.A., Raynolds, M.K. and Breen, A. 2012. Survey of Arctic relevé data and a Northern Alaska IAVD prototype. Presented at International Arctic Vegetation Database Workshop. Roskilde, Denmark May 29-31. (Presentation)
    24. Walker, D.A., Raynolds, M.K., Breen, A., Daniëls, F.J.A., Talbot, S.S., Hennekens, S.M., Peet, R.K., Murray, D.F., Walker, M.D. 2012. An International Arctic Vegetation Database. Presented at International Arctic Vegetation Database Workshop. Roskilde, Denmark May 29-31. (Presentation)
    25. Walker, D.A., Raynolds, M.K., Breen, A., Daniëls, F.J.A., Talbot, S.S., Hennekens, S.M., Peet, R.K., Murray, D.F., Walker, M.D. 2012. An International Arctic Vegetation Database. Presented at European Vegetation Survey 21st Workshop. Vienna, Austria May 24-27. (Presentation)
    26. Walker, D.A., Webber, P.J., Brown, J., Raynolds, M.K., Streever, W., Ambrosius, K. 2012. The evolution of the Integrated Geobotanical and Historical Change Mapping (IGHCM) approach for documenting landscape change (1949-2010), Prudhoe Bay oil field, AK, USA. Presented at 12th Circumpolar Remote Sensing Symposium, Levi, Finland, May 14-18, 2012. (Presentation)
    27. Yu, Q., Epstein, H.E., Walker, D.A., Forbes, B.C. 2012. Dynamics of Circum-Arctic Tundra Plant Communities in Response to Climate Warming and Grazing Pressure. Presented at From Knowledge to Action, 2012 IPY Conference, Montreal, Quebec, May 22-27, 2012. (Presentation)

  1. 2011

    1. Bieniek, P.A., Bhatt, U.S., Walker, D.A., Raynolds, M.K., Comiso, J.C. 2011. Impacts of Changing Seasonality on Arctic Systems and an Arctic in Rapid Transition II. AGU Fall Meeting. San Francisco, CA, December 5-9. (GC32A-04, Wednesday, Dec. 7, session GC32A) (Presentation)
    2. Khitun, O.V., Ermokhina, K.A., Leibman, M.O., Khomutov, A.V. 2011. Plant species indicating the depth of active layer on the Bely Island. Fourth Russian Conference on Geocryology. Moscow, Russia, June 7-9. (Presentation)
    3. Raynolds, M.K. 2011. Searching for the response of northern vegetation to climate change. Presented at Iceland Institute of Natural History. Akureyri, Iceland 6 April. (Presentation)
    4. Raynolds, M.K. 2011. Searching for the response of northern vegetation to climate change. Presented at University of Akureyri. Akureyri, Iceland 28 April. (Presentation)
    5. Walker, D.A. 2011. Arctic vegetation along two long bioclimatic transects in North America and Russia. Presented at Fulbright Lecture, Botany Dept., Masarysk University. Brno, Czech Republic March 10. (Presentation)
    6. Walker, D.A. 2011. Greening of the Arctic: Climate change and circumpolar Arctic vegetation. Presented at Fulbright Lecture, Cesko Budovice University. Cesko Budovice, Czech Republic April 27. (Presentation)
    7. Walker, D.A. 2011. Socio-ecological effects of oil and gas development in the Arctic: Comparison of the Prudhoe Bay, Alaska and Bovanenkova, Russia regions. Presented at Earth Day, 20th Celebration of the Czech Fulbright Commission. American Center, Prague, Czech Republic April 21. (Presentation)
    8. Walker, D.A. 2011. Welcome to IASC. Presented at Understanding Biodiversity Changes and Causes - Synergies in Arctic Terrestrial Biodiversity Research and Monitoring. Sonnerupgaard Gods, Hvalsø, Denmark 12 October. (Presentation)
    9. Walker, D.A. 2011. Multi-scale monitoring of Arctic vegetation. Presented at Terrestrial Expert Monitoring Group Inaugural Workshop. Sonnerupgaard Gods, Hvalsø, Denmark 10-14 October. (Presentation)
    10. Walker, D.A., Bienek, P., Bhatt, U.S., Raynolds, M.K., Epstein, H.E., Jia, G.J., Comiso, J.C., Tucker, C.J., Pinzon, J., Liebman, M.O., Forbes, B.C., Kumpula, T. 2011. The Arctic Tundra is a maritime biome. Presented at High latitude trace gas exchanges: the role of ocean-land interactions. Nuuk, Greenland September 19-22. (Presentation)
    11. Walker, D.A., Kuss, H.P., Kopecky, M., Frost, G.V., Daniëls, F.J.A., Kade, A.N., Vonlanthen, C.M., Raynolds, M.K., Epstein, H.E. 2011. The North American and Eurasia Arctic transects: Using phytosociology and remote sensing to detect vegetation pattern and change. Presented at European Vegetation Survey 20th Workshop. Rome, Italy April 6-9. (Presentation)

  1. 2010

    1. Bhatt, U.S., Walker, D.A., Raynolds, M.K., Bieniek, P.A., Epstein, H.E., Comiso, J.C., Pinzon, J.E., Tucker, C.J., Polyakov, I.V., Liu, Y., Gens, R., Tweedie, C.E., Webber, P.J., Steele, M., Jia, G.J. 2010. Understanding drivers of recent Arctic tundra vegetation changes. AGU Fall Meeting. San Francisco, CA, 13-17 December. (Presentation)
    2. Bhatt, U.S., Walker, D.A., Raynolds, M.K., Comiso, J.C., Epstein, H.E., Jia, G.J., Gens, R., Pinzon, J., Tucker, C., Tweedie, C., Webber, P. 2010. Circumpolar Arctic tundra vegetation change is linked to sea-ice decline. Presented at State of the Arctic Meeting. Miami, Fl March 16-19. (Presentation)
    3. Bhatt, U.S., Walker, D.A., Raynolds, M.K., Epstein, H.E., Jia, G.J., Comiso, J.C., Pinzon, J.E., Tucker, C.J. 2010. Climatology and Seasonality of the ice-ocean-atmosphere-terrestrial system on the Yamal. Presented at Yamal Land-Cover Land-Use Change Workshop. Rovaniemi, Finland 8-10 March. (Presentation)
    4. Bhatt, U.S., Walker, D.A., Raynolds, M.K., Steele, M., Epstein, H.E., Jia, G.J., Comiso, J.C., Pinzon, J.E., Tucker, C.J. 2010. Circumpolar arctic tundra vegetation change is linked to sea-ice decline. Presented at Land Cover, Land Use Change Spring Science Team Meeting. Bethesda, MD 31 March-2 April. (Presentation)
    5. Comiso, J.C. 2010. State of the Cryosphere in the Arctic. Presented at Second Yamal Land-Cover Land-Use Change Workshop. Rovaniemi, Finland 8-10 March. (Presentation)
    6. Drozdov, D.S., Grechichshev, S.E., Malkova, G.V., Korostelev, Y.V. 2010. Yamal Peninsula maps and GIS information. Update on ECI activities and permafrost research on the Yamal. Presented at Yamal Land-Cover land-Use Change Workshop. Rovaniemi, Finland 8-10 March 2010. (Presentation)
    7. Epstein, H.E., Walker, D.A., Raynolds, M.K., Kelley, A.M., Jia, G.J., Ping, C.L. 2010. Vegetation biomass, leaf area index, and NDVI patterns and relationships along two latitudinal transects in arctic tundra. Presented at IPY Oslo Science Conference. Oslo, Norway 8-12 Jun. (Presentation)
    8. Epstein, H.E., Walker, D.A., Raynolds, M.K., Kelley, A.M., Jia, G.J., Ping, C.L., Michaelson, G.J., Leibman, M.O., Kaarlejärvi, E., Khomutov, A.V., Kuss, H.P., Moskalenko, N.G., Orechov, P., Matyshak, G., Forbes, B.C. 2010. Vegetation biomass, leaf area index, and NDVI patterns and relationships along two latitudinal transects in arctic tundra. Presented at Second Yamal Land-Cover Land-Use Change Workshop. Rovaniemi, Finland March 08-10. (Presentation)
    9. Epstein, H.E., Walker, D.A., Raynolds, M.K., Kelley, A.M., Jia, G.J., Ping, C.L., Michaelson, G.J., Leibman, M.O., Kaarlejärvi, E., Khomutov, A.V., Kuss, P., Moskalenko, N.G., Orechov, P., Matyshak, G., Forbes, B.C. 2010. Vegetation biomass, leaf area index, and NDVI patterns and relationships along two latitudinal transects in Arctic tundra. Presented at State of the Arctic Meeting. Miami, FL 16-19 March. (Presentation)
    10. Forbes, B.C., Fauria, M.M., Zetterberg, P., Kumpula, T. 2010. Deciduous shrub growth and the greening of the Arctic in West Siberia. AGU Fall Meeting. San Francisco, CA, 13-17 December. (GC53B-08) (Presentation)
    11. Forbes, B.C., Murray, M.S., Walker, D.A. 2010. Human dimensions of land-cover and land-use change in the Arctic with a focus on the Yamal Peninsula, Russia. Presented at Land Cover, Land Use Change Spring Science Team Meeting. Bethesda, MD April 20-22. (Presentation)
    12. Forbes, B.C., Stammler, F., Kumpula, T., Meschtyb, N., Pajunen, A., Kaarlejärvi, E. 2010. High resilience in the Yamal-Nenets social-ecological System, west Siberian Arctic, Russia. Presented at Second Yamal Land-Cover Land-Use Change Workshop. Rovaniemi, Finland 8-10 March. (Presentation)
    13. Frost, G.V., Epstein, H.E., Walker, D.A. 2010. Summary of 2009 field observations and proposed 2010 study plan for Kharp study site, northwest Siberia. Presented at Yamal Land-Cover land-Use Change Workshop. Rovaniemi, Finland March 08-10. (Presentation)
    14. Frost, G.V., Epstein, H.E., Walker, D.A., Yu, Q., Raynolds, M.K. 2010. Spatio-temporal trends in vegetation structure and NDVI in Low Arctic northwest Siberia: evidence from the satellite record and ground observations. AGU Fall Meeting. San Francisco, CA, 13-17 December. (GC54A-03) (Presentation)
    15. Gubarkov, A. 2010. Issues of Yamal Peninsula gas fields development. Presented at Second Yamal Land-Cover Land-Use Change Workshop. Rovaniemi, Finland 8-10 March. (Presentation)
    16. Heim, B., Bartsch, A., Boike, J., Hubberten, H.-W. 2010. DUE Permafrost: a spaceborne permafrost monitoring and information system. Presented at Second Yamal Land-Cover Land-Use Change Workshop. Rovaniemi, Finland 8-10 March. (Presentation)
    17. Jia, G.J., Hu, Y., Wang, H., Epstein, H.E., Walker, D.A. 2010. Greening and Seasonality: Multi-scale Approaches. Presented at Yamal Land-Cover land-Use Change Workshop. Rovaniemi, Finland 8-10 March 2010. (Presentation)
    18. Kaplan, J.O., Melton, J.R., Pfeiffer, M., Collins, P.M. 2010. Large-scale dynamic modeling of soil-vegetation interactions. Presented at Second Yamal Land-Cover Land-Use Change Workshop. Rovaniemi, Finland 8-10 March. (Presentation)
    19. Khitun, O.V., Moskalenko, N.G. 2010. Summary of Yamal vegetation and flora. Presented at Second Yamal Land-Cover Land-Use Change Workshop. Rovaniemi, Finland 8-10 March. (Presentation)
    20. Khomutov, A.V., Leibman, M.O. 2010. Landscape pattern and cryogenic landsliding hazard analysis at Vaskiny Dachi, Central Yamal. Presented at Second Yamal Land-Cover Land-Use Change Workshop. Rovaniemi, Finland 8-10 March. (Presentation)
    21. Khomutov, A.V., Leibman, M.O., Epstein, H.E. 2010. Relation between active-layer depth, NDVI and LAI along the Yamal Transect. Presented at Second Yamal Land-Cover Land-Use Change Workshop. Rovaniemi, Finland 8-10 March. (Presentation)
    22. Kumpula, T., Forbes, B.C., Stammler, F. 2010. Land-use and land-cover changes in Yamal peninsula. Presented at Second Yamal Land-Cover Land-Use Change Workshop. Rovaniemi, Finland 8-10 March. (Presentation)
    23. Leibman, M.O., Gubarkov, A.A., Khumotov, A.V., Moskalenko, N.G., Orekhov, P.T., Ponomareva, O.E., Gameev, I.A. 2010. Geocryological Map of the USSR, 1:2,500,000, 1991. Presented at Second Yamal Land-Cover Land-Use Change Workshop. Rovaniemi, Finland 8-10 March. (Presentation)
    24. Orekhov, P., Leibman, M.O. 2010. Yamal Peninsula, climate, zonation, physiography, geology, permafrost. Presented at Second Yamal Land-Cover Land-Use Change Workshop. Rovaniemi, Finland 8-10 March. (Presentation)
    25. Pinzon, J.E., Tucker, C.J. 2010. GIMMS 3g NDVI set and global NDVI trends. Presented at Second Yamal Land-Cover Land-Use Change Workshop. Rovaniemi, Finland 8-10 March. (Presentation)
    26. Raynolds, M.K., Walker, D.A., Bhatt, U.S., Pinzon, J.E., Comiso, J.C. 2010. NDVI trends 1981-2008 in the circumpolar Arctic and Yamal. Presented at Yamal Land-Cover land-Use Change Workshop. Rovaniemi, Finland March 08-10. (Presentation)
    27. Stammler, F. 2010. Humans and animals on northern Yamal: uncovering unknown patterns of movement and settlement. Presented at Second Yamal Land-Cover Land-Use Change Workshop. Rovaniemi, Finland 8-10 March. (Presentation)
    28. Streletskiy, D.A., Nelson, F.E., Shiklomanov, N.I. 2010. Spatial and temporal variability of active-layer thickness under changing climatic conditions in Northwest Siberia. Presented at Second Yamal Land-Cover Land-Use Change Workshop. Rovaniemi, Finland 8-10 March. (Presentation)
    29. Talbot, S.S., Walker, D.A. 2010. Circumboreal Vegetation Mapping (CBVM) Project: Introduction and objectives. Circumboreal Vegetation Mapping (CBVM) Workshop. Helsinki, Finland, November 3-6, 2008, 1-3. (Presentation)
    30. Ukraintseva, N.K. 2010. High Willow Shrubs in Yamal: Reasons of Their Wide Expansion and Methods of Biomass Assessment. Presented at Second Yamal Land-Cover Land-Use Change Workshop. Rovaniemi, Finland 8-10 March. (Presentation)
    31. Walker, D.A. 2010. Is Arctic refuge grass greener?. Fairbanks Daily News-Miner. (Fairbanks Daily News-Miner) (Presentation)
    32. Walker, D.A. 2010. Welcome, goals of the workshop, and overview of the project. Presented at Second Yamal Land-Cover Land-Use Change Workshop. Rovaniemi, Finland 8-10 March. (Presentation)
    33. Walker, D.A. 2010. Greening of the Arctic: Spatial and temporal (1982-2009) variation of circumpolar tundra NDVI and aboveground biomass. AGU Fall Meeting. San Francisco, CA, 13-17 December. (GC53B-01) (Presentation)
    34. Walker, D.A., Epstein, H.E., Bhatt, U.S., Leibman, M.O., Forbes, B., Romanovsky, V.E., Raynolds, M.K., Jia, G.J., Frost, G.V., Khomutov, A.V., Moskalenko, N.G., Orekhov, P., Matyshak, G., Webber, P.J., Tweedie, C.E., Gould, W.A., Mercado, J., Munger, C.A., Maier, H.A., Comiso, J., Pinzon, J.E., Tucker, C.J., Ukraintseva, N.G., Drozdov, D.S., Gubarkov, A.A., Kaarlejärvi, E., Khitun, O., Kuss, P., Yu, Q. 2010. Greening of the Arctic: A planet-to-plant analysis of Arctic vegetation change. Presented at IPY Oslo Science Conference. Oslo, Norway 8-12 June. (Presentation)
    35. Walker, D.A., Epstein, H.E., Bhatt, U.S., Maier, H.A., frost, G.V., Raynolds, M.K., Comiso, J.C., Daanen, R.P., Drozdov, D.S., Forbes, B.C., Gubarkov, A.A., Jia, G.J., Kaarlejärvi, E., Khitun, O., Khumotov, A.V., Kuss, H.P., Leibman, M.E., Matyshak, G., Moskalenko, N.G., Orekhov, P., Pinzon, J.E., Romanovsky, V.E., Tucker, C.J., Ukraientseva, N.K., Yu, Q. 2010. Greening of the Arctic: A planet-to-plant analysis of tundra vegetation change. Presented at State of the Arctic Meeting. Miami, Fl 16-19 March. (Presentation)
    36. Walker, D.A., Epstein, H.E., Maier, H.A., Frost, G.V., Raynolds, M.K., Bhatt, U.S., Liebman, M.O., Moskalenko, N., Forbes, B.C., Romanovsky, V.E., Comiso, J.C., Daanen, R., Drozdov, D.S., Kaarlejärvi, E., Khitun, O., Khomutov, A.V., Kuss, P., Matyshak, G., Orechov, P., Pinzon, J.E., Tucker, C.J. 2010. The Yamal Transect: Vegetation Analysis and Mapping (a plant to planet approach). Presented at Second Yamal Land-Cover Land-Use Change Workshop. Rovaniemi, Finland March 08-10. (Presentation)
    37. Walker, D.A., Raynolds, M.K., Kofinas, G.P. 2010. Arctic LTER: Map Analysis. Presented at MALS Workshop. Fairbanks, AK October 8-9. (Presentation)
    38. Walker, D.A., Raynolds, M.K., Maier, H.A., Barbour, E.M., Neufeld, G.P. 2010. Circumpolar geobotanical mapping: a web-based plant-to-planet approach for vegetation-change analysis in the Arctic. Presented at Mapping and Monitoring of Nordic Vegetation and Landscapes Conference. Hveragerði, Iceland 16-18 September. (Conference Website) (Presentation)
    39. Yu, Q., Epstein, H.E., Walker, D.A. 2010. Controls on arctic tundra vegetation dynamics on the Yamal Peninsula, Russia - an integrative study using ArcVeg and multi-temporal Landsat imagery. Presented at Second Yamal Land-Cover Land-Use Change Workshop. Rovaniemi, Finland 8-10 March. (Presentation)
    40. Yu, Q., Epstein, H.E., Walker, D.A., Frost, G.V. 2010. Modeling dynamics of tundra plant communities on the Yamal Peninsula. AGU Fall Meeting. San Francisco, CA, 13-17 December. (GC54A-04) (Presentation)

  1. 2009

    1. Bhatt, U.S., Walker, D.A., Raynolds, M.K., Comiso, J.C., Epstein, H.E., Rudiger, G. 2009. Panarctic linkages between greening of Arctic tundra, sea ice decline, and summer land temperatures. Presented at NEESPI Workshop CITIES-2009. Krasnoyarsk, Russia July 14. (Presentation)
    2. Bhatt, U.S., Walker, D.A., Raynolds, M.K., Steele, M., Epstein, H.E., Jia, G.J., Comiso, J.C., Pinzon, J.E., Tucker, C.J. 2009. Seasonality of the air-sea-ice-land environment of Arctic tundra in Northern Eurasia and North America. Presented at Department of Atmospheric Sciences, Informal Seminar. Fairbanks, AK Nov. 18. (Presentation)
    3. Khomutov, A.V., Leibman, M.O., Moskalenko, N.G., Epstein, H.E., Walker, D.A. 2009. Numerical characteristics of vegetation and their influence on active layer depth. Presented at International Workshop on the results of IPY. Sochi, Krasnodar Krai, Russia 28 September - 1 October. (Presentation)
    4. Leibman, M.O., Khomutov, A.V. 2009. Environmental controls of the thaw depth and rate of thaw under climate fluctuations. Association of American Geographers Annual Meeting. Las Vegas, NV, March 22-27. (Abstract) (Presentation)
    5. Leibman, M.O., Ukraintseva, N.K. 2009. Mechanisms and geoecological consequences of cryogenic landslides in the area of marine sedimentation. European Geosciences Union General Assembly 2009. Vienna, Austria, April 19-24, 11:EGU2009-3980. (Abstract) (Presentation)
    6. Walker, D.A. 2009. Arctic land is greening, says scientist. (mp3) mp3
    7. Walker, D.A. 2009. The integrated mapping approach used in mapping the Arctic tundra biome. Presented at North American CBVM Workshop. Great Lakes Forestry Centre, Sault Ste Marie, Ontario, Canada December 1-2. (Presentation)
    8. Walker, D.A., Bhatt, U.S., Epstein, H.E., Raynolds, M.K., Frost, G.V., Liebman, M.O., Khumotov, A.V., Jia, G.J., Forbes, B.C., Comiso, J.C., Pinzon, J.E., Tucker, C.J., Webber, P.J., Tweedie, C.E. 2009. Circumpolar Arctic greening: Relationships to summer sea-ice concentrations, land temperatures and disturbance regimes. AGU Fall Meeting. San Francisco, CA, December 14-18, 90:GC43B-08. (Presentation)
    9. Yu, Q., Epstein, H.E., Walker, D.A. 2009. Simulating soil organic nitrogen and grazing effects on arctic tundra vegetation dynamics on the Yamal Peninsula, Russia. AGU Fall Meeting. San Francisco, CA, December 14-18, 90:GC31A-0693. (Presentation)

  1. 2008

    1. Anon. 2008. Agenda and Abstracts. Presented at Yamal Land-Cover Land-Use Change Workshop. Moscow, Russia January 28-30. (Presentation)
    2. Bhatt, U.S., Walker, D.A., Raynolds, M., Comiso, J. 2008. Examining relationships between sea ice and Arctic vegetation on the Pan-Arctic, regional and site scales. European Geosciences Union General Assembly. Vienna, Austria, 13 -18 April, 10:EGU2008-A-11271. (Abstract) (Presentation)
    3. Bhatt, U.S., Walker, D.A., Raynolds, M.K., Comiso, J.C. 2008. Pan-Arctic climate dynamics in relationship to sea ice, land-surface temperatures and NDVI: focus Yamal region & comparison with North America. Presented at Yamal Land-Cover Land-Use Change Workshop. Moscow, Russia January 28-30. (Presentation)
    4. Comiso, J.C. 2008. Decadal Changes in the Arctic Sea Ice Cover and Surface Temperature with especial focus on Yamal, Alaska and the Canadian Peninsula. Presented at Yamal Land-Cover Land-Use Change Workshop. Moscow, Russia January 28-30. (Presentation)
    5. Drozdov, D.S. 2008. Mapping and remote sensing of natural and technogenic geosystems in West Siberia. Presented at Yamal Land-Cover Land-Use Change Workshop. Moscow, Russia January 28-30. (Presentation)
    6. Epstein, H.E. 2008. Field and Modeling Analyses of Tundra Vegetation Communities Along Latitudinal Temperature Gradients. Presented at Yamal Land-Cover Land-Use Change Workshop. Moscow, Russia January 28-30. (Presentation)
    7. Epstein, H.E., Walker, D.A., Kuss, P., Karlejaärvi, E. 2008. (1)LAI, NDVI, and vegetation biomass for Low Arctic sites in the Yamal region of Russia (2)An overview of modeling vegetation and ecosytem dynamics in arctic tundra. Presented at Yamal Land-Cover Land-Use Change Workshop Moscow, Russia 28-30 January. (Presentation)
    8. Forbes, B.C., colleagues, w.m.d. 2008. Effects of petroleum development on reindeer herding in Northwest Siberia: Combining scientific and traditional knowledge. Presented at Yamal Land Cover and Land Use Workshop. Moscow, Russia January 28-30. (Presentation)
    9. Gubarkov, A.A. 2008. Overview of gas and oil development on the Yamal Peninsula. Presented at Yamal Land-Cover Land-Use Change Workshop Moscow, Russia 28-30 January. (Presentation)
    10. Jia, G.J., Wang, H., Epstein, H.E., Walker, D.A. 2008. Greening of Arctic: Knowledge and Uncertainties. Presented at Yamal Land-Cover Land-Use Change Workshop. Moscow, Russia January 28-30. (Presentation)
    11. Kaplan, J.O., Lischke, H., Melton, J.R. 2008. Dynamic Modeling of Global Arctic and Subarctic Vegetation. Presented at Yamal Land-Cover Land-Use Change Workshop. Moscow, Russia January 28-30. (Presentation)
    12. Khomutov, A.V., Leibman, M.O. 2008. Landscape structure in natural and disturbed conditions of Yamal Peninsula, field results and local GIS. Presented at Yamal Land-Cover Land-Use Change Workshop. Moscow, Russia January 28-30. (Presentation)
    13. Kumpula, T. 2008. Remote sensing of land-use/land-cover change in the Bovanenkovo gas field on the Yamal Peninsula. Presented at Yamal Land-Cover Land-Use Change Workshop. Moscow, Russia 28-30 January. (Presentation)
    14. Kuss, P., Karlejaärvi, E., Moskalenko, N., Epsein, H., Walker, D. 2008. Plant communities at Nadym, Laborovaya, and Vaskiny Dachi. Presented at Yamal Land-Cover Land-Use Change Workshop. Moscow, Russia 28-30 January. (Presentation)
    15. Leibman, M.O. 2008. Welcome. Presented at Yamal Land-Cover Land-Use Change Workshop. Moscow, Russia January 28-30, 2008. (Presentation)
    16. Leibman, M.O., Malkova , G., Khomutov, A., Gubarkov , A. 2008. Overview of Yamal Peninsula with focus on Laborovaya and Vaskiny Dachi: Climate, zonation, physiography, geology, permafrost. Presented at Yamal Land-Cover Land-Use Change Workshop. Moscow, Russia January 28-30. (Presentation)
    17. Matyshak, G.V. 2008. Soils at Nadym and Yamal area. Presented at Yamal Land-Cover Land-Use Change Workshop Moscow, Russia January 28. (Presentation)
    18. Melnikov, V.P., Drozdov, D.S., Malkova, G.V. 2008. Permafrost: contemporary state, stability and dynamics. Technogenic influence. Presented at Yamal Land-Cover Land-Use Change Workshop. Moscow, Russia January 28-30. (Presentation)
    19. Moskalenko, N.G. 2008. Overview of vegetation dynamics, disturbance and recovery studies in Nadym and Yamal areas. Presented at Yamal Land-Cover Land-Use Change Workshop. Moscow, Russia January 28-30. (Presentation)
    20. Munger, C.A., Walker, D.A., Maier, H.A., Hamilton, T.D. 2008. Spatial analysis of glacial geology, surficial geomorphology, and vegetation in the Toolik Lake region: Relevance to past and future land-cover changes. Presented at Ninth International Conference on Permafrost. Fairbanks, AK June 29 - July 3, 2:1255-1260. (Presentation)
    21. Orekhov, P.T. 2008. Lake ecosystems in different landscapes in the Nadym region. Presented at Yamal Land-Cover Land-Use Change Workshop. Moscow, Russia January 28-30. (Presentation)
    22. Peterson, R.A. 2008. Numerical modeling of differential frost heave. Ninth International Conference on Permafrost. Fairbanks, AK, June 29-July 3, 2:1399-1404. (Presentation)
    23. Ponomareva, O.E. 2008. Overview of Nadym Region: Climate, Zonation, Physiography, Geology, Permafrost. Presented at Yamal Land-Cover Land-Use Change Workshop. Moscow, Russia January 28-30. (Presentation)
    24. Raynolds, M.K., D.A. Walker, and J.C. Comiso 2008. Spatial patterns of land surface temperature and NDVI and their relation to vegetation distribution on the Yamal Peninsula. Presented at Yamal Land-Cover Land-Use Change Workshop Moscow, Russia January 28-30. (Presentation)
    25. Raynolds, M.K., Walker, D.A. 2008. Circumpolar relationships between permafrost characteristics, NDVI, and arctic vegetation types. Ninth International Conference on Permafrost. Fairbanks, AK, June 29-July 3, 2:1469-1474. (Presentation)
    26. Raynolds, M.K., Walker, D.A., Comiso, J.C. 2008. Circumpolar AVHRR Surface Temperature and its Relationship to Bioclimate Zones and NDVI. Presented at Komarov Botanical Institute. St. Petersburg, Russia February 5. (Presentation)
    27. Romanovsky, V., Kholodov, A., Marchenko, S. 2008. Pan-Arctic permafrost thermal conditions: Where does the Yamal Peninsula fit?. Presented at Yamal Land-Cover Land-Use Change Workshop. Moscow, Russia January 28-30. (Presentation)
    28. Romanovsky, V.E., Marchenko, S.S., Daanen, R., Sergeev, D.O., Walker, D.A. 2008. Soil climate and frost heave along the permafrost/ecological North American Arctic transect. Ninth International Conference on Permafrost. Fairbanks, AK, June 28-July3, 2:1519-1524. (Presentation)
    29. Stammler, F. 2008. A century of nomadic land use. Presented at Yamal Land-Cover Land-Use Change Workshop. Moscow, Russia January 28-30. (Presentation)
    30. Walker, D.A. 2008. Arctic sea ice, Arctic vegetation change and lessons from 2007. Presented at Arctic Observation Integration Workshop. Palisades, NY March 17-20. (Presentation)
    31. Walker, D.A. 2008. Overview of the Yamal LCLUC Project and Objectives of the Meeting. Presented at Yamal Land-Cover Land-Use Change Workshop. Moscow, Russia January 28-30. (Presentation)
    32. Walker, D.A. 2008. Greening of the Arctic: An IPY Initiative. Does the loss of sea ice affect the tundra and those who depend on it?. Presented at Institute of Arctic Biology Seminar. Fairbanks, AK November 21. (Presentation)
    33. Walker, D.A. 2008. Biocomplexity of Arctic Patterned Ground: A tale of cracking, heaving, and smothering!. Presented at Dynamics of Complex Systems: Common Threads Workshop. Fairbanks, AK 6 August. (Presentation)
    34. Walker, D.A. 2008. Application of space-based technologies and models to address land-cover/land-use change problems on the Yamal Peninsula, Russia. Presented at NASA Carbon Cycle and Ecosystems Joint Science Workshop. Adelphi, MD April 28 - May 2. (Presentation)
    35. Walker, D.A. 2008. Monitoring spatial and temporal changes in Arctic vegetation. Presented at CBMP Partnership Workshop. Washington, D.C. March 6-7. (Presentation)
    36. Walker, D.A., Barbour, E.M., Maier, H.A. 2008. A Web-based Arctic Geobotanical Atlas and a New Hierarchy of Maps of the Toolik Lake Region, Alaska. Ninth International Conference on Permafrost. Fairbanks, AK, June 29 - July 3, 2:1893-1898. (Presentation)
    37. Walker, D.A., Bhatt, U.S., Epstein, H.E. 2008. Greening of the Arctic: an IPY Initiative. AGU Fall Meeting. San Francisco, CA, December 12-15, 89:1. (U23F-05 INVITED) (Presentation)
    38. Walker, D.A., Bhatt, U.S., Romanovsky, V.E., Kofinas, G.P., Raynolds, M.K., Epstein, H.E., Yu, Q., Forbes, B.C., Stammler, F., Karlejaärvi, E., Leibman, M., Moskalenko, N., Gubarkov, A., Khomutov, A., Kumpula, T., Comiso, J.C., Kuss, J.P., Jia, G.J., Kaplan, J.O., Matyshak, G. 2008. Cumulative effects of resource development, reindeer herding, and climate change on the Yamal Peninsula. Presented at NASA Carbon Cycle and Ecosystems Joint Science Workshop. Adelphi, MD 28 April - 2 May. (Presentation)
    39. Walker, D.A., Bhatt, U.S., Romanovsky, V.E., Kofinas, G.P., Raynolds, M.K., Epstein, H.E., Yu, Q., Forbes, B.C., Stammler, F., Karlejäarvi, E., Leibman, M., Moskalenko, N., Gubarkov, A., Khomutov, A., Kumpula, T., Comiso, J.C., Kuss, J.P., Jia, G.J., Kaplan, J.O., Matyshak, G. 2008. Application of space-based technologies and models to address land-cover/land-use change problems on the Yamal Peninsula, Russia. European Geosciences Union General Assembly. Vienna, Austria, April 13-18, 10:EGU2008-A-05697. (EGU2008-A-05697) (Presentation)
    40. Walker, D.A., Epstein, H.E., Karlejaärvi, E., Kuss, P., Leibman, M.O., Moskalenko, N.G., Matyshak, G.V. 2008. 2007 Expedition to Yamal Peninsula Region, Russia. Presented at Yamal Land-Cover Land-Use Change Workshop Moscow, Russia January 28-30. (Presentation)
    41. Walker, D.A., Leibman, M.O., Forbes, B.C., Epstein, H.E. 2008. Cumulative effects of rapid climate and land-use changes on the Yamal Peninsula, Russia. AGU Fall Meeting. San Francisco, CA, December 15-19, 89:GC52A-07. (GC52A-07) (Presentation)
    42. Walker, D.A., Murray, M. 2008. Linked Response to Rapid Climate Change and Land-Use Change in the Arctic. Presented at Human Dimensions of the Arctic. San Francisco, CA December 18. (Presentation)
    43. Yu, Q., Epstein , H. 2008. Modeling Arctic Tundra Vegetation Dynamics in North America and the Yamal Region of Russia. Presented at Yamal Land-Cover Land-Use Change Workshop Moscow, Russia January 28-30. (Presentation)

  1. 2007

    1. Alcaraz, D., Chuvieco, E., Epstein, H. 2007. Temporal trends in post-fire regeneration patterns of boreal forests using 1km AVHRR NDVI. Presented at AGU Fall Meeting, San Francisco, CA, December 10-14, 2007. (B11D-0777) (Presentation)
    2. Ping, C.L., Kimble, J., Michaelson, G.J., Walker, D.A. 2007. Cryogenesis and Carbon Stores in Arctic Tundra Soils, Alaska. Presented at Arctic Science Conference. Anchorage, AK September 24-26. (Presentation)
    3. Raynolds, M.K. 2007. Searching for the effects of climate change on arctic vegetation. Presented at Science Cafe Fairbanks, AK May 29. (Presentation)
    4. Walker, D.A. 2007. The Circumpolar Arctic Vegetation Map and the Arctic Geobotanical Atlas. Presented at Fourth International CAFF Flora Group Workshop. Faroe Islands, Denmark May 15-17 . (Presentation)
    5. Walker, D.A. 2007. A Circum-Boreal Vegetation Map Inititiative: The U.S. Perspective. Presented at Fourth International CAFF Flora Group Workshop. Faroe Islands, Denmark May 15-17. (Presentation)
    6. Walker, D.A. 2007. Interactions of climate, sea-ice, land-temperatures carbon, and humans in the Arctic: an overview. Presented at Land Cover, Land Use Change Spring Science Team Meeting. Bethesda, MD April 4 - 6. (Presentation)
    7. Walker, D.A. 2007. A Hierarchic Geobotanical Atlas. Presented at 41st Alaska Surveying and Mapping Conference. Fairbanks, AK 19-23 March. (Presentation)

  1. 2006

    1. Cook, B.I., Bonan, G.B., Levis, S., Epstein, H.E., Smith, T.M. 2006. Amplification of climate model response to snow cover fraction parameterization through dynamic vegetation. AGU Fall Meeting, San Francisco, CA, December 11-15, 87:C21C-1181. (C21C-1181) (Presentation)
    2. Daanen, R.P., Misra, D., Epstein, H.E., Walker, D.A. 2006. Modeling hydrology-vegetation interactions in non-sorted-circle ecosystems. AGU Fall Meeting. San Francisco, CA, December 11 - 15, C44A-07. (C44A-07)
    3. Epstein, H.E. 2006. Greening of the Arctic: Assessing tundra dynamics with remote sensing and modeling. Presented at Earth System Science Partnership Open Science Conference. Beijing, China November 9-12. (Presentation)
    4. Epstein, H.E., Kelley, A.M., Walker, D.A., Jia, G.J., Raynolds, M.K. 2006. Regional-scale vegetation dynamics in patterned-ground ecosystems of arctic tundra. AGU Fall Meeting. San Francisco, CA, December 11-15, 87:C51A-0396. (C51A-0396) (Presentation)
    5. Forbes, B. 2006. Effects of petroleum development on reindeer herding in Northwest Siberia: Combining scientific and traditional knowledge. Presented at Earth System Science Partnership. Beijing, China November 9-12. (Presentation)
    6. Gould, W.A., González, G., Walker, D.A. 2006. Integrating research and education in a study of biocomplexity in arctic tundra ecosystems: costs, results, and benefits to the research agenda. AGU Fall Meeting. San Francisco, CA, December 11-15, C44A-08. (C44A-08)
    7. Jia, G.J., Epstein, H.E., Walker, D.A. 2006. Decadal changes of vegetation greenness in the Canadian Arctic. AGU Fall Meeting. San Francisco, CA, December 11-15, 87:C51A-0383. (C51A-0383) (Presentation)
    8. Kelley, A.M., Epstein, H.E., Walker, D.A., Ping, C. 2006. Soil nitrogen transformations associated with small patterned-ground features along the complete arctic bioclimatic gradient. AGU Fall Meeting. San Francisco, CA, December 11 - 15, C51A-0395. (C51A-0395) (Presentation)
    9. Kuss, P., Kade, A.N., Vonlanthen, C.M., Raynolds, M.K., Matveyeva, N.V., Daniels, F.J.A., Walker, D.A. 2006. Vegetation differentiation of arctic patterned-ground ecosystems. AGU Fall Meeting. San Francisco, CA, December 11-15, 87:C44A-05. (C44A-05)
    10. Michaelson, G.J., Ping, C.L., Epstein, H.E., Kimbel, J.M., Romanovsky, V.E., Tarnocai, C.T., Walker, D.A. 2006. Soil Properties and Patterned Ground Across the North American Arctic Transect. AGU Fall Meeting. San Francisco, CA, December 11-15, C51A-0397. (C51A-0397)
    11. Munger, C.A., Walker, D.A., Raynolds, M.K., Kade, A.N., Vonlanthen, C.M., Kuss, P., Daanen, R.P. 2006. The North American Arctic Transect: baseline vegetation and active layer maps for the IPY. AGU Fall Meeting. San Francisco, CA, December 11 - 15, C51A-0382. (C51A-0382)
    12. Raynolds, M.K., Comiso, J.C., Walker, D.A. 2006. Comparison of arctic tundra bioclimate subzones and AVHRR surface temperature, and relationship to NDVI. Presented at 9th Bi-Annual Circumpolar Remote Sensing Symposium. Seward, Alaska May 16-19. (Presentation)
    13. Romanovsky, V., Marchenko, S., Brown, J. 2006. Thermal State of Permafrost (TSP): The US Contribution to the International Network of Permafrost Observatories. Presented at NEESPI Focus Center Workshop. Fairbanks, AK April 6-8. (Presentation)
    14. Romanovsky, V., Marchenko, S., Duguay, C.R., Walsh, J. 2006. Permafrost dynamics within the Northern Eurasia region and related impacts on surface and sub-surface hydrology. Presented at NEESPI Focus Center Workshop. Fairbanks, AK April 6-8. (Presentation)
    15. Romanovsky, V.E., Marchenko, S.S., Daanen, R., Nikolsky, D., Sergeev, D.O., Walker, D.A. 2006. Soil climate and frost heave along the permafrost/ecological North American Arctic Transect. AGU Fall Meeting. San Francisco, CA, December 11 - 15, C44A-06. (C44A-06) (Presentation)
    16. Romanovsky, V.E., Marchenko, S.S., Grosse, G., Duguay, C.R., Zheleznyak, M.N., Sergeev, D.O. 2006. Monitoring and Modeling of the Northern Eurasia Permafrost Dynamics. AGU Fall Meeting. San Francisco, CA, December 11-15, 87:52. (GC21B-04 INVITED)
    17. Walker, D., Daanen, R., Epstein, H.E., Gould, W., Gonzalez, G., Kade, A., Kelley, A., Krantz, W., Kuss, J.P., Michaelson, G., Munger, C., Nickolsky, D., Peterson, R., Ping, C., Raynolds, M.K., Romanovsky, V., Tarnocai, C., Vonlanthen, C. 2006. Biocomplexity of Arctic Patterned Ground: A tale of cracking, heaving, and smothering. AGU Fall Meeting. San Francisco, CA, December 14, 87:C44A-04. (C44A-04) (Presentation)
    18. Walker, D.A. 2006. Application of space-based technologies and models to address landcover/land-use change problems on the Yamal Peninsula, Russia. Presented at NEESPI-CLAC meeting. Fairbanks, AK April 6-8. (Presentation)
    19. Walker, D.A. 2006. Greening of the Arctic: an IPY initiative. Presented at Arctic Science Conference, Arctic AAAS Division Meeting. Fairbanks, AK October 2-4. (Presentation)
    20. Walker, D.A. 2006. Complexity in natural biological ecosystems: Interactions of physical and biological processes in the formation of small patterned-ground features across the Arctic climate gradient. Presented at Dynamics of Complex Systems: Common Threads Workshop. Fairbanks, AK July 5-7. (Presentation)
    21. Walker, D.A., Daanen, R., Kade, A.N., Michaelson, G.J., Nicolsky, D.J., Peterson, R., Ping, C.L., Munger, C.A., Raynolds, M.K., Romanovsky, V.E., Vonlanthen, C.M., Epstein, H.E., Kelley, A.M., Gould, W.A., Gonzalez, G., Krantz, W.B., Tarnocai, C.T. 2006. Interactions of physical and biological processes in the formation of small patterned-ground features across the arctic climate gradient. Presented at Arctic Science Conference, Arctic AAAS Division Meeting. Fairbanks, AK October 2-4. (Presentation)

  1. 2005

    1. Epstein, H.E., D.A. Walker, G.J. Jia, Kelley, A.M. 2005. Climate, plant biomass, NDVI, and LAI relationships along the full arctic bioclimate gradient. AGU Fall Meeting, San Francisco, CA, December 5-9, 86:B33E-1092. (B33E-1092) (Presentation)
    2. Jia, G.J., Epstein, H.E., Walker, D.A. 2005. Uneven response of arctic tundra to recent environmental changes. AGU Fall Meeting, San Francisco, CA, December 5-9, 86:B33E-1091. (B33E-1091) (Presentation)
    3. Kade, A., D.A. Walker, Romanovsky, V.E. 2005. The N-factor along a climate gradient in patterned-ground ecosystems. Presented at 2nd European Conference on Permafrost. Potsdam, Germany June 12 - 16. (Presentation)
    4. Kade, A., Walker, D.A., Romanovsky, V.E. 2005. The effect of vegetation, soil organic layer and snow on the modified N-factor in patterned-ground ecosystems. AGU Fall Meeting, San Francisco, CA, December 5-9, 86:C21C-1135. (C21C-1135) (Presentation)
    5. Kelley, A.M., Epstein, H.E., Walker, D.A. 2005. Soil nitrogen cycling associated with small patterned ground features along a high-latitude temperature gradient in northern Alaska. AGU Fall Meeting, San Francisco, CA, December 5-9, B51A-0193. (B51A-0193) (Presentation)
    6. Ping, C.-L., Kimble, J.M., Michaelson, G.J., Tarnocai, C., Walker, D.A. 2005. Carbon stores and their distribution in different arctic ecosystems. Presented at 1st Climate and Cryosphere International Science Conference. Beijing, China April 11 - 15. (Presentation)
    7. Ping, C.-L., Michaelson, G.J., Tarnocai, C., Walker, D.A. 2005. Cryogenic features of tundra soils along a bioclimate gradient in arctic Alaska and Canada. AGU Fall Meeting, San Francisco, CA, December 5-9, 86:C24A-05. (C24A-05) (Presentation)
    8. Raynolds, M.K., Walker, D.A., Kade, A.N., Munger, C.A. 2005. Small-scale patterned ground in the Arctic: Maps of vegetation and thaw depth on a north-south transect. AGU Fall Meeting, San Francisco, CA, December 5-9, 86:C24A. (C24A-06) (Presentation)
    9. Shur, Y., Ping, C.L., Walker, D.A. 2005. Comprehensive model of frost boils and earth hummocks formation. Presented at 2nd European Conference on Permafrost. Potsdam, Germany 12-16 June. (Presentation)
    10. Tarnocai, C., Walker, D. 2005. Turf hummocks along a climatic gradient in Arctic Canada: characteristics and development. Presented at 2nd European Conference on Permafrost. Potsdam, Germany June 12-16.
    11. Walker, D.A. 2005. Biocomplexity of frost-heave features. Presented at University of Alaska Anchorage Complex Systems Group. Anchorage, Alaska March 21. (Presentation)
    12. Walker, D.A. 2005. Application of space-based technologies and models to address land-cover/land-use change problems on the Yamal Peninsula, Russia. Presented at NEESPI Briefing for IGBP Leadership. San Francisco, CA December 4. (Presentation)
    13. Walker, D.A. 2005. Recent changes to arctic tundra vegetation. Presented at NOAA State of the Arctic Workshop. Woods Hole, MA October 24-26. (Presentation)
    14. Walker, D.A. 2005. Polygenetic origin of small patterned-ground features. Presented at Biocomplexity of Frost Boils Modeling Workshop. Fairbanks, AK March 14-16. (Presentation)
    15. Walker, D.A. 2005. Biocomplexity of small patterned-ground features: A North American Arctic Transect. Presented at Institute of Arctic Biology Seminar. Fairbanks, AK October 28. (Presentation)
    16. Walker, D.A., Daanen, R.P., Epstein, H.E., Gonzalez, G., Gould, W.A., Kade, A.N., Kelley, A.M., Krantz, W.B., Michaelson, G.J., Munger, C.A., Nickolsky, D.J., Peterson, R.A., Ping, C.L., Raynolds, M.K., Romanovsky, V.E., Shur, Y.L., Tarnocai, C.T., Tipenko, G.S., Timling, I., Vonlanthen, C.M. 2005. The North American Arctic Transect: Patterned ground ecosystems across the full arctic bioclimate gradient. AGU Fall Meeting, San Francisco, CA, December 5-9, 86:C24A-03. (C24A-03) (Presentation)
    17. Walker, D.A., Raynolds, M.K., Maier, H.A. 2005. Circumpolar Arctic Vegetation Map: application for a plant-community-level map. Presented at Arctic Network Terrestrial Scoping Workshop. Fairbanks, AK April 26 - 28. (Presentation)

  1. 2004

    1. Chappell, G.G., Brody, B., Webb, P., Chord, J., Romanovsky, V., Tipenko, G. 2004. Virtual Reality Visualization of Permafrost Dynamics Along a Transect Through Northern Alaska. AGU Fall Meeting, San Francisco, CA, December 13-17, 85:C43B-0231. (C43B-0231) (Presentation)
    2. Hinzman, L.D., Bettez, N., Bolton, W.R., Chapin, F.S., III, Dyurgerov, M.B., Fastie, C.L., Griffith, B., Hollister, R.D., Hope, A., Huntington, H.P., Jensen, A.M., Jia, G.J., Jorgensen, T., Kane, D.L., Klein, D.R., Kofinas, G.P., Lynch, A.H., Lloyd, A.H., Nolan, M., Oechel, W.C., Osterkamp, T.E., Racine, C.H., Romanovsky, V.E., Stone, R.S., Stow, D.A., Sturm, M., Tweedie, C.E., Vourlitis, G.L., Walker, M.D., Walker, D.A., Webber, P.J., Welker, J.M., Yoshikawa, K. 2004. Evidence and Implications of Recent Climate Change in Northern Alaska and Other Arctic Regions. AGU Fall Meeting, San Francisco, CA, December 13-17, 85:GC51A-1052. (GC51A-1052) (Presentation)
    3. Nicolsky, D.J., Romanovsky, V.E., Tipenko, G.S., Walker, D.A. 2004. A coupled thermo-mechanical model of differential frost heave. AGU Fall Meeting, San Francisco, CA, December 13-17, 85:C13B-0282. (C13B-0282) (Presentation)
    4. Tipenko, G.S., Marchenko, S., Romanovsky, V.E., Groshev, V., Sazonova, T. 2004. Spatially Distributed Model of Permafrost Dynamics in Alaska. AGU Fall Meeting, San Francisco, CA, December 13-17, 85:C12A-02. (C12A-02) (Presentation)
    5. Walker, D.A. 2004. Greening of the Arctic: A transect to monitor terrestrial change across the full Arctic bioclimate gradient. Presented at IPY Workshop. Fairbanks, AK November 29. (Presentation)
    6. Walker, D.A., Epstein, H.E., Kuss, P., Michaelson, G., Ping, C.L., Raynolds, M.K., Romanovsky, V.E., Tarnocai, C.T. 2004. Interactions of multiple factors for patterned-ground features across the Arctic bioclimate gradient. AGU Fall Meeting, San Francisco, CA, December 13-17, 85:F424. (C12A-07) (Presentation)

  1. 2003

    1. Epstein, H.E., Calef, M., Jia, G.J., Chapin, F.S., III, Walker, D.A., Walker, M.D., Starfield, A. 2003. Dynamics of Vegetation and Soils in Arctic Tundra Ecosystems. Presented at Field talk. Toolik Field Station, AK June 30. (PDF)
    2. Gonzalez, G. 2003. Biocomplexity of Frost boil Ecosystems: Educational Component. Presented at Toolik Field Station, AK June 30 - July 15. (PDF)
    3. Gould, W.A., Gonzalez, G., Walker, D.A. 2003. Integrating research and education in a study of Arctic frost-boil ecosystems. AGU Fall Meeting, San Francisco, CA, December 8 - 12, 84:ED21B-1218. (ED21B-1218) (Presentation)
    4. Gould, W.A., Quijano, A., Gonzalez, G., Walker, D.A. 2003. Variation in frost-boil morphology and associated vegetation characteristics along a climatic gradient. AGU Fall Meeting, San Francisco, CA, December 8-12, 84:B31C-0311. (B31C-0311)
    5. Kade, A.N., Walker, D.A. 2003. Experimental Alteration of Plant Canopy and the Effects on Cryoturbation Regime. Presented at Field talk. Toolik Field Station, AK June 30. (PDF)
    6. Kelley, A.M., Epstein, H.E. 2003. Plant Community and Nitrogen Cycling in Arctic Frost-Boil Ecosystems. Presented at Toolik Field Station, AK June 30 - July 15. (PDF)
    7. Krantz, W.B. 2003. Geophysical Self-Organization as an Indicator of Global Climate Change. Presented at Toolik Field Station, AK June 30 - July 15. (PDF)
    8. Michaelson, G.J., Ping, C.L., Walker, D.A. 2003. Biogeochemistry of Soils Associated with Cryptogamic Crusts on Frost Boils. Presented at Field talk. Toolik Field Station, AK June 30. (PDF)
    9. Nicolsky, D.J., Tipenko, G.S., Romanovsky, V.E. 2003. Developing a numerical model of frost boils dynamics. AGU Fall Meeting, San Francisco, CA, December 8-12, 84:C21B-0813. (C21B-0813)
    10. Peterson, R.A., Walker, D.A., Romanovsky, V.E., Knudson, J.A., Raynolds, M.K., Krantz, W.B. 2003. A differential frost heave model: cryoturbation-vegetation interactions. Proceedings of the Eighth International Conference on Permafrost. Lisse, 21-25 July, 2:885-890. (Complete set of PDFs) (Presentation)
    11. Ping, C.L., Michaelson, G.J., Kimbel, J.M., Shur, Y.L., Walker, D.A. 2003. Morphogenesis of Soils Associated with Frost Boils. Presented at Field talk. Toolik Field Station, AK June 30. (PDF)
    12. Romanovsky, V. 2003. Permafrost, Active Layer, Soil Temperature and Moisture, Frost Heave and other Things. Presented at Toolik Field Station, AK June 30. (PDF)
    13. Shur, Y.L., Ping, C.L. 2003. The Driving Force of Frost Boils and Hummocks Formation. AGU Fall Meeting, San Francisco, CA, December 8-12, 84:C21B-0823. (C21B-0823) (Presentation)
    14. Tarnocai, C. 2003. Banks Island Photos. Presented at Toolik Field Station, AK June 30. (PDF)
    15. Tarnocai, C.T. 2003. Geology and Soils. Presented at Toolik Field Station, AK June 30. (PDF)
    16. Walker, D.A. 2003. Biocomplexity of frost-boil ecosystems: 2003 Expedition to Banks Island. Presented at Institute of Arctic Biology Seminar. Fairbanks, AK 2003. (Presentation)
    17. Walker, D.A., Balser, A.W., Maier, H.A., Sharpton, V.L. 2003. Towards a Web-based Arctic Geographic Information System: A hierarchic GIS geobotanical atlas for the Toolik Lake-Kuparuk River region. Presented at SEARCH. unknown . (Presentation)
    18. Walker, D.A., Kade, A.N., Michaelson, G., Ping, C.L., Raynolds, M.K., Romanovsky, V.E., Epstein, H.E., Kelley, A.M., Gould, W.A., González, G., Krantz, W.B., Tarnocai, C.T. 2003. Biocomplexity of frost boil ecosystems: 2003 expedition to Banks Island and Prince Patrick Island, Canada. Presented at 54th Arctic Science Conference. Fairbanks, Alaska 22 - 24 September. (Presentation)
    19. Walker, D.A., Raynolds, M.A., Moskalenko, N.G., Team, C. 2003. A physiognomic-based circumpolar Arctic Vegetation map. Eighth International Conference on Permafrost Extended Abstracts. Zurich, Switzerland, July 21 - 25, 177-178. (Poster)
    20. Walker, D.A., Raynolds, M.K., Maier, H.A. 2003. The Circumpolar Arctic Vegetation Map: A tool for analysis of change in permafrost regions. AGU Fall Meeting, San Francisco, CA, December 8 - 12, 84:C11E-05. (C11E-05) (Presentation)

  1. 2002

    1. Michaelson, G.J., Ping, C.L., Walker, D.A. 2002. Biogeochemistry of Soils Associated with Cryptogamic Crusts on Frost Boils. Presented at AGU Fall Meeting, San Francisco, CA, December 6-10, 83:F260.
    2. Ping, C.-L., Michaelson, G.J., Kimble, J., Shur, Y.L., Walker, D.A. 2002. Morphogenesis of soils associated with frost boils. Presented at AGU Fall Meeting, San Francisco, CA, December 6-10, 83:F259. (Presentation)
    3. Raynolds, M.K., Ananjeva, G.V., Drozdov, D.S., Daniëls, F.J.A., Einarsson, E., Elvebakk, A., Gould, W.A., Katenin, A.E., Kholod, S.S., Korostelev, Y.V., Maier, H.A., Markon, C.J., Moskalenko, N., Talbot, S.S., Walker, D.A. 2002. Second Draft of the Circumpolar Arctic Vegetation Map. Presented at ARCSS All-Hands Workshop. Seattle, WA February 20. (Presentation)
    4. Raynolds, M.K., Walker, D.A. 2002. Draft of the Circumpolar Arctic Vegetation Map. Presented at 53rd Arctic Science Conference. Fairbanks, AK September 18-21. (Presentation)
    5. Walker, D.A. 2002. Active-layer-vegetation interactions: The Circumpolar Arctic Vegetation Map and a network of active layer monitoring sites as part of the Biocomplexity in the Environment initiative. Presented at Circumpolar Active Layer Monitoring (CALM) Workshop. Lewes, Delaware November 11 - 15. (Presentation)
    6. Walker, D.A., Epstein, H.E., Gould, W.A., Krantz, W.B., Tipenko, G., Ping, C.L., Romanovsky, V., Walker, M.D. 2002. Biocomplexity of Frost-boil Ecosystems. Presented at Artic Forum. Washington, D. C. May 16-17. (Presentation)
    7. Walker, D.A., Epstein, H.E., Gould, W.A., Krantz, W.B., Tipenko, G., Ping, C.L., Romanovsky, V., Walker, M.D. 2002. Biocomplexity of Frost-boil Ecosystems. Presented at 53rd Arctic Science Conference. Fairbanks, AK September 18-21. (Presentation)
    8. Walker, D.A., Jia, G.J., Epstein, H.E., Shiklomanov, N.I., Nelson, F.E., Hinzman, L.D., Romanovsky, V.E. 2002. Vegetation-soil-active layer relationships along a low-arctic bioclimate gradient, Alaska. AGU Fall Meeting, San Francisco, CA, December 6-10, 83:B72D-02. (B72D-02) (Presentation)
    9. Walker, D.A., Knudson, J.A. 2002. Biocomplexity of frost boil ecosystems. Presented at 53rd Arctic Science Conference. Fairbanks, AK September 18-21. (Presentation)
    10. Walker, D.A., Raynolds, M.K., Maier, H.A., Murray, D.F., Markon, C.J., Talbot, S.S., Gould, W.A., Bliss, L.C., Edlund, S.A., Zoltai, S.C., Daniels, F.J.A., Wilhelm, M., Bay, C., Einarsson, E., Gundjonsson, G., Moskalenko, N.G., Ananjeva, G.V., Drozdov, D.S., Konchenko, L.A., Korostelev, Y.V., Melnikov, E., Ponomareva, O.E., Katenin, A.E., Kholod, S.S., Matveyeva, N.V., Safranova, I.N., Shelkunova, R., Yurtsev, B.A., Polezhaev, A.N., Elvebakk, A., Johansen, B.E., Trahan, N.G., Charron, T.M. 2002. Draft of the Circumpolar Arctic Vegetation Map. Presented at 53rd Alaska Science Conference of the American Association for the Advancement of Science Arctic Division. Fairbanks, AK September 18-21. (Presentation)
    11. Walker, D.A., V.E. Romanovsky, Krantz, W.B. 2002. Cryoturbation-ecosystem interactions: Field observations and experiments to validate a new model of frost-boil formation and its relevance to climate change. Presented at IARC/CIFAR PI Final Results Meeting. Boulder, CO October 20 - 22. (Presentation)
    12. Walker, D.A., V.E. Romanovsky, W.B. Krantz, C.L. Ping, R.A. Peterson, M.K. Raynolds, H.E. Epstein, G.J. Jia, Wirth, D.C. 2002. Biocomplexity of frost boil ecosystems on the Arctic Slope, Alaska. Presented at 14th Annual Meeting and Arctic Forum. Arlington, VA May 16 - 17. (Presentation)

  1. 2001

    1. Gould, W.A., Raynolds, M.K., Walker, D.A., Edlund, S.A. 2001. Canadian Arctic vegetation and ecosystem properties. Presented at Fourth International Circumpolar Arctic Vegetation Mapping Workshop. Moscow, Russia April 10-13. (Presentation)
    2. Raynolds, M.K., Walker, D.A., Gould, W.A., Markon, C.J. 2001. Synthesis of Alaska and Canada. Presented at Fourth International Circumpolar Arctic Vegetation Mapping Workshop. Moscow, Russia April 10-13. (Presentation)
    3. Walker, D.A. 2001. Circumpolar Arctic Vegetation Map: Plan for Synthesis. Presented at unknown. unknown . (Presentation)
    4. Walker, D.A. 2001. Welcome, history, progress, and future of the CAVM. Presented at Fourth International Circumpolar Arctic Vegetation Mapping Workshop. Moscow, Russia April 10-13. (Presentation)
    5. Walker, D.A., Burian, J.C., Epstein, H.E., Gould, W.A., Jia, G.J., Maier, H.A., Raynolds, M.K. 2001. Controls on Arctic NDVI Patterns: a Zonal Analysis. AGU Fall Meeting. San Francisco, CA, December 10-14, 82:B22C-0176. (B22C-0176) (Presentation)

  1. 2000

    1. George, S., Hay, B., Knudson, J., Maier, H.A., Nance, K., Raynolds, M.K., Walker, D.A. 2000. The University of Alaska Fairbanks: A member of an Arctic GIS community. Presented at Arctic GIS Workshop. Seattle, WA January 22 - 24. (Presentation)
    2. Riedel, S.M., Epstein, H.E., Walker, D.A. 2000. Biotic controls on spectral reflectance indices of tundra vegetation. AGU Fall Meeting, San Francisco, CA, December 15-19, 81:B71D-11. (B71D-11)
    3. Walker, D.A., Epstein, H.E., Jia, J.G., Edwards, E.J., Moody, A. 2000. Climate, Vegetation, Soil, and Spectral Reflectance Patterns Across Zonal Vegetation Boundaries in Arctic Alaska. AGU Fall meeting, San Francisco, CA, December 15-19, 81:F223. (B71F-08) (Presentation)
    4. Walker, D.A., Gould, W.A., Maier, H.A., Raynolds, M.K., Muller, S.V. 2000. The Circumpolar Arctic Vegetation Map: Environmental controls, AVHRR-derived base maps, and integrated mapping procedures. Presented at 6th Circumpolar Symposium on Remote Sensing of Polar Environments. Yellowknife, NWT, Canada 12-14 May. (Presentation)

  1. 1998

    1. Walker, D.A. 1998. Welcome, History, and Goals of the 3rd International Circumpolar Arctic Vegetation Mapping Workshop. Presented at 3rd International Circumpolar Arctic Vegetation Mapping Workshop. Anchorage, AK June 3-7. (Presentation)
    2. Walker, D.A. 1998. An Integrated Vegetation Map for Northern Alaska: A Prototype for Circumpolar Arctic Vegetation Mapping. Presented at 3rd International Circumpolar Arctic Vegetation Mapping Workshop. Anchorage, AK June 3-7. (Presentation)
    3. Walker, D.A. 1998. An integrated vegetation mapping approach for the Circumpolar Arctic Vegetation Map. Presented at 3rd International Circumpolar Arctic Vegetation Mapping Workshop. Anchorage, AK June 3-7. (Presentation)
    4. Walker, D.A., Walker, M.D., Welker, J.M., Arft, A.M., Bardsley, T., Brooks, P.D., Fahnestock, J.T., Jones, M.H., Losleben, M., Parsons, A.N., Seastedt, T.R., Turner, P.L. 1998. Long-term experimental manipulation of winter snow regime and summer temperature in arctic and alpine tundra: An integrated ecosytem approach. Presented at International Conference on Snow Hydrology: The integration of physical, chemical, and biological systems. Brownsville, VT 6-9 October. (Presentation)

  1. 1997

    1. Walker, D.A. 1997. Moist nonacidic tundra: possible causes and significance to Beringian paleoenvironments. Presented at Beringian Paleoenvironments Workshop. Florissant, CO September 20 - 23. (Presentation)
    2. Walker, D.A. 1997. Climatic, topographic, and substrate controls over distribution of arctic vegetation. Presented at Extrapolation of Arctic and Boreal Processes that Feedback to Climate Workshop. Santa Barbara, CA April 6 - 9. (Presentation)
    3. Walker, D.A. 1997. Mapping of northern Alaska: methodology, legend, results, problems. Presented at CAVM-North American Workshop. Anchorage, AK January 14 - 16. (Presentation)
    4. Walker, D.A., Auerbach, J.G., Bockheim, F.S., Chapin III, W. Eugster, J. McFadden, G.J. Michaelson, F.E. Nelson, C.L. Ping, W.S. Reeburg, S. Regli, Shiklomanov., N.I. 1997. Moist nonacidic tundra: relevance to arctic land-atmosphere fluxes, wildlife, and human dimensions of arctic systems. Presented at ARCSS-LAII Science Workshop. Seattle, WA March 27 - 29. (Presentation)

  1. 1996

    1. Auerbach, N.A., Walker, D.A. 1996. An electronic hierarchic geobotanical atlas for arctic system science. Second Circumpolar Arctic Vegetation Mapping Workshop and The CAVM-North American Workshop. Arendal, Norway, and Anchorage, AK, 19-24 May 1996/14-16 January 1997, Occasional Paper No. 52:26-27. (Purchase proceedings) (Presentation)
    2. Murray, D.F., Walker, D.A. 1996. ''Tundra'' and the ''Arctic''. Second Circumpolar Arctic Vegetation Mapping Workshop and The CAVM-North American Workshop. Arendal, Norway and Anchorage, AK, 19-24 May 1996/14-16 January 1997, 52:14-15. (Purchase proceedings) (Presentation)
    3. Walker, D.A. 1996. Method for making an integrated vegetation map of northern Alaska (1:4,000,000 scale). Second Circumpolar Arctic Vegetation Mapping Workshop and The CAVM-North American Workshop. Arendal, Norway and Anchorage, AK, 19-24 May 1996/14-16 January 1997, 52:54-61. (Purchase proceedings) (Presentation)
    4. Walker, D.A. 1996. Progress since the first CAVM workshop and goals of the second. Second Circumpolar Arctic Vegetation Mapping Workshop and The CAVM-North American Workshop. Arendal, Norway, and Anchorage, AK, 19-24 May 1996/14-16 January 1997, Occasional Paper No. 52:1-6. (Purchase proceedings) (Presentation)
    5. Walker, D.A., N.A. Auerbach, J.G. Bockheim, C.-L. Ping, G. Michaelson, F.E. Nelson, N.I. Shiklomanov, G.R. Mueller, F.S. Chapin III, W. Eugster, J. McFadden, K.R. Everett, L. Everett, K. Hinkel, L. Miller, W.S. Reeburgh 1996. Studies of process, pattern and scale in arctic ecosystems. AGU Fall Meeting, San Francisco, CA, December 13-16. (Presentation)

  1. 1995

    1. Brown, J., F.E. Nelson, Walker, D.A. 1995. Circumarctic active layer monitoring (CALM): an international contribution to ITEX. Presented at 6th International Tundra Experiment (ITEX) Workshop. Ottawa, Canada April 7 - 11. (Presentation)
    2. Walker, D.A. 1995. A review of disturbance and recovery of Arctic Alaska vegetation related to oil-field development. Presented at Disturbance and Recovery of Arctic Terrestrial Ecosystems workshop. Rovaniemi, Finland September 24 - 30. (Presentation)
    3. Walker, D.A., M. D. Walker, N.A. Auerbach, L.R. Lestak, B.E. Lewis, D.S. Schimel, Shippert, M.M. 1995. A hierarchic GIS for studies of process, pattern and scale in arctic ecosytems. Presented at ARCSS-LAII Science Workshop. Orcas Island, Washington March 1 - 5. (Presentation)
    4. Walker, D.A., N. Auerbach, M. Walker, J. Brown, K. Everett, L. Hinzman, F. Nelson, Moskolenko, N. 1995. Monitoring change in arctic terrestrial ecosystems at multiple scales. Workshop to define research priorities for Russian Arctic land-shelf systems. Columbus, OH, January 10-12, 118-120. (Presentation)

  1. 1994

    1. Shippert, M.M., Walker, D.A., Auerbach, N.A. 1994. Biomass and leaf-area index maps derived from SPOT images for the Toolik Lake and Imnavait Creek area, Alaska. Presented at Third Circumpolar Symposium on Remote Sensing of Arctic Environments. Fairbanks, AK 16-20 May. (Presentation)
    2. Suding, P.W., Krantz, W.B., Walker, D.A., Lewis, B.E. 1994. Field Study of the Effect of Increased Snow Depth on Frost Penetration. Presented at 70th Annual Meeting of the Southwestern and Rocky Mountain Division of the American Association for the Advancement of Science. Durango, Colorado May 22 - 26. (Presentation)
    3. Walker, D.A. 1994. Information: Toward a new arctic vegetation map: St. Petersburg workshop. Arctic and Alpine Research, 27:103-104. (Presentation)
    4. Walker, D.A. 1994. Background and goals of the Circumpolar Arctic Vegetation Mapping Workshop. Presented at Circumpolar Arctic Vegetation Mapping Workshop. Komarov Botanical Institute, St. Petersburg, Russia March 21-25. (Presentation)
    5. Walker, D.A. 1994. A hierarchic geographic information system for northern Alaska: insights toward a circumpolar arctic vegetation map. Presented at Circumpolar Arctic Vegetation Mapping Workshop. Komarov Botanical Institute, St. Petersburg, Russia March 21-25. (Presentation)
    6. Walker, D.A., Auerbach, N.A., Lewis, B.E., Shippert, M.M. 1994. Remote sensing of acid and nonacid tundra regions in northern Alaska and relevance to arctic landscape succession. Presented at Third Circumpolar Symposium on Remote Sensing of Arctic Environments. Fairbanks, Alaska May 16-20. (Presentation)
    7. Walker, D.A., M. D. Walker, L.R. Lestak, K.R. Everett, Webber, P.J. 1994. Application of geographic information systems to the problem of cumulative impacts in the Prudhoe Bay Oil Field, Alaska. The industrial development of the North and problem of recultivation. Syktyvkar, USSR, July 8-14, 1991, 151. (Full proceedings) (Presentation)
    8. Walker, M.D., Walker, D.A., Auerbach, N.A. 1994. Classification and gradient analysis of upland tussock tundra vegetation, Southern Arctic Foothills, Alaska. Presented at 1994 Annual Meeting of the Ecological Society of America. Knoxville, TN August 7-11. (Presentation)

  1. 1993

    1. Duguay, C.R., Walker, D.A. 1993. Environmental modeling and monitoring at the Niwot LTER site: an overview of recent research activities using GIS. Second International Conference/Workshop on Integrating Geographic Information Systems and Environmental Modeling. Breckenridge, CO, September. (Presentation)
    2. Walker, D.A. 1993. Long-term research in the alpine: overview of the Long-Term Ecological Resarch (LTER) project and the International Tundra Experiment (ITEX). Presented at Wildlife Institute of India. Dehradun, India October 21. (Presentation)
    3. Walker, D.A. 1993. Hierarchic geographic information systems: applications to alpine research, disturbance studies, and climate change. Presented at Wildlife Institute of India. Dehradun, India October 21. (Presentation)
    4. Walker, D.A., Krantz, W.B., Lewis, B.L., Price, E.T., Tabler, R.T. 1993. Hierarchic studies of snow-ecosystem interactions: a 100-year snowpack-alteration experiment. Proceedings of the 50th Eastern Snow Conference 61st Western Snow Conference. Quebec City, Quebec, June 8-10, 407-414. (Online Proceedings) (Presentation)
    5. Walker, D.A., W.B. Krantz, B.E. Lewis, E.T. Price, R.D. Tabler, M. D. Walker, Wessman, C.A. 1993. Multi-scale studies of snow-vegetation interactions in the alpine zone. Presented at International Workshop on Snow Ecology. Quebec City, Canada June 3 - 7. (Presentation)

  1. 1992

    1. Walker, D.A. 1992. Hierarchical geographic information systems for the Arctic. Presented at International workshop on classification of circumpolar arctic vegetation. Boulder, CO March 5 - 9. (Presentation)
    2. Walker, M.D., Walker, D.A. 1992. Classification and gradient analysis of the Brooks Range Foothills, Alaska. Presented at International workshop on classification of circumpolar arctic vegetation. Boulder, CO March 5 - 9. (Presentation)

  1. 1991

    1. Auerbach, N.A., Walker, M.D., Walker, D.A. 1991. Road dust disturbance in arctic tundra soils and vegetation, Alaska, USA. Presented at 42nd Annual Arctic Science Conference. Fairbanks, AK May 14-15. (Presentation)
    2. Walker, D.A., Walker, M.D. 1991. Hierarchical GIS for analyzing ecosystem processes and climate change in the Alaskan Arctic. Presented at 21st Arctic Workshop, Mesoscale Modeling. Fairbanks, AK May 16 - 18. (Presentation)
    3. Walker, M.D., Walker, D.A. 1991. Toward a circumpolar vegetation classification system. Presented at 42nd Annual Arctic Science Conference. Fairbanks, AK May 14 - 15. (Presentation)

  1. 1990

    1. Walker, D.A. 1990. Loess ecosystems in northern Alaska. Presented at 75th Annual Ecological Society of America Meeting. Snowbird, UT July 29 - August 2. (Presentation)

  1. 1989

    1. Walker, D.A. 1989. Loess ecosystems of northern Alaska. Presented at Ecosystem Center, Marine Biological Laboratory. Woods Hole, MA May 17. (Presentation)
    2. Walker, D.A. 1989. A hierarchical approach to analyzing landscape change. Presented at LTER GIS training session. Boulder, CO September 23. (Presentation)
    3. Walker, D.A. 1989. A hierarchical GIS approach to examine natural and anthropogenic disturbance in the Alaskan Arctic. Presented at Arctic Division of AAAS. Fairbanks, AK September. (Presentation)
    4. Walker, D.A., L.M. Ayers, N.Caine, J.C. Halfpenny, N.D. Lederer, M. D. Walker, Wessman, C.A. 1989. GIS methods for detecting long-term change in the Colorado alpine. Presented at Fourth Annual Landscape Ecology Symposium. Fort Collins, CO March 15 - 18. (Presentation)
    5. Walker, D.A., L.M. Ayers, N.Caine, J.C. Halfpenny, N.D. Lederer, M. D. Walker, Wessman, C.A. 1989. Cumulative impacts in northern Alaska. Presented at Sigma Xi. University of Colorado February 7. (Presentation)
    6. Wessman, C.A., Walker, D.A., Walker, M.D. 1989. Remotely sensed pattern to process in the Front Range alpine. Presented at Fourth Annual Landscape Ecology Symposium. Fort Collins, CO 15-18 March. (Presentation)

  1. 1988

    1. Walker, M.D., Walker, D.A., Acevedo, W. 1988. Comparison of community and regional ordinations in the northern Brooks Range foothills. Presented at Third Annual Landscape Ecology Symposium; Observations across Scales: Function and Management of Landscapes. Albuquerque, NM 16-19 March. (Presentation)

  1. 1987

    1. Evans, B.M., Walker, D.A., Benson, C., Peterson, G., Webber, P.J., Day, R.L., Nordstrand, E. 1987. Use of a multilayered digital database to determine interrelationships between landform geometry, vegetation and climate in an arctic foothills landscape. Presented at American Institute of Biological Sciences and Ecological Society of America. Columbus, OH 10-13 August. (Presentation)
    2. Walker, M.D., Walker, D.A. 1987. Importance of landscape focal points in maintaining regional diversity: a case study of the northern Alaskan pingos. Presented at Second Annual Symposium, Regional Association, International Association for Landscape Ecology. Charlotte, NC March 9 - 11. (Presentation)

  1. 1986

    1. Walker, D.A. 1986. Cumulative impacts in the wetlands of northern Alaska. Presented at NASA-Ames. Palo Alto, CA April 15. (Presentation)
    2. Walker, D.A. 1986. Use of GIS Technology for examining cumulative impacts in the Prudhoe Bay Oilfield. Presented at North Slope Borough. Barrow, AK August 22. (Presentation)
    3. Walker, D.A. 1986. Vegetation and Ecology of Northern Alaska. Presented at Denver Museum of Natural History. Denver, CO 1986. (Presentation)
    4. Webber, P.J., Walker, D.A. 1986. Cumulative impacts and the spread of disturbance in permafrost dominated lands. Presented at Seventh Conference of the Comité Arctique International (Restoration and Vegetation Succession in Circumpolar Lands). Reykjavik, Iceland 7-13 September. (Presentation)

  1. 1983

    1. Walker, D.A. 1983. A hierarchical tundra vegetation classification especially designed for mapping in northern Alaska. Fourth International Conference on Permafrost. Fairbanks, AK, 17-22 July, 1332-1337. (PDF of all presentations) (Presentation)

  1. 1978

    1. Everett, K.R., Webber, P.J., Walker, D.A., Parkinson, R.J., Brown, J. 1978. A geoecological mapping scheme for Alaskan coastal tundra. Proceedings of the Third International Conference on Permafrost. Edmonton, Alberta, Canada, 10-13 July, 359-365. (Proceedings)

  1. 1976

    1. Webber, P.J., Walker, D.A., Komárková, V. 1976. Large scale mapping of Alaskan tundra vegetation. Presented at 27th Alaska Science Conference. Fairbanks, AK 4-7 August. (Presentation)

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