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Reports and Proposals

  1. 2022

    1. Walker, D.A. 2022. NNA Track 1: Landscape evolution and adapting to change in ice-rich permafrost systems. Annual report to the National Science Foundation, submitted 10/5/2022. (PDF)

  1. 2021

    1. Walker, D.A. 2021. NNA Track 1: Landscape evolution and adapting to change in ice-rich permafrost systems. Annual report to the National Science Foundation, submitted 8/19/2021 (with supporting files). (PDF)
    2. Walker, D.A. 2021. Cumulative Effects of Arctic Oil Development - planning and designing for sustainability. Final report to the National Science Foundation, submitted 11/20/2021. (PDF)
    3. Walker, D.A., Peirce, J.L., Breen, A., Kade, A., Bergstedt, H., Daanen, R. and Watson-Cook, E. 2021. Navigating the New Arctic: Landscape evolution and adaptation to change in Ice-Rich permafrost systems. Field report of the NNA-IRPS vegetation expedition, Prudhoe Bay, Alaska, 13 July-3 August. (PDF)

  1. 2020

    1. Walker, D.A. 2020. NNA Track 1: Landscape evolution and adapting to change in ice-rich permafrost systems. Annual report to the National Science Foundation, submitted 9/1/2020 (with supporting files). (PDF)
    2. Walker, D.A. 2020. Cumulative Effects of Arctic Oil Development - planning and designing for sustainability. Annual report to the National Science Foundation, submitted 8/29/2020. (PDF)

  1. 2019

    1. Walker, D.A. 2019. NNA Track 1: Landscape evolution and adapting to change in Ice-Rich Permafrost Systems (NNA-IRPS). Proposal to the National Science Foundation. (PDF)
    2. Walker, D.A. 2019. Cumulative Effects of Arctic Oil Development - planning and designing for sustainability. Annual report to the National Science Foundation, submitted 8/30/2019. (PDF)
    3. Walker, D.A. and Peirce, J.L. 2019. RATIC / T-MOSAiC Connections and Opportunities. Workshop Report to the IASC Secretariat, 2 September. (PDF)
    4. Walker, D.A., Jorgenson, M.T., Kanevskiy, M., Liljedahl A.K., Nolan, M., Raynolds, M.K. and Sturm, M. 2019. Likely impacts of proposed 3D-seismic surveys to the terrain, permafrost, hydrology, and vegetation in the 1002 Area, Arctic National Wildlife Refuge, Alaska. Alaska Geobotany Center Publication AGC 19-01. University of Alaska Fairbanks, Fairbanks, AK. (PDF)

  1. 2018

    1. Walker, D.A, Epstein, H.E., Bhatt, U.S., Romanavsky, V., Raynolds, M.K., Leibman, M.O., Kumpula, T., Kofinas, G., Matyshak, G., Ermokhina, K. and Yu, Q. 2018. Yamal LCLUC Synthesis: 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 circump...Arctic. AGC Annual Report. University of Alaska Fairbanks, Fairbanks, AK. (Grant NNX14AD90G) (PDF)
    2. Walker, D.A. 2018. Cumulative Effects of Arctic Oil Development - planning and designing for sustainability. Annual report to the National Science Foundation, submitted 7/19/2018. (PDF)
    3. Walker, D.A., Kanevskiy, M., Shur, Y., Raynolds, M., Peirce, J.L., Buchhorn, M., Ermokhina, K. and Druckenmiller, L.A. 2018. Snow, thaw, temperature, and permafrost borehole data from the Colleen and Airport sites, Prudhoe Bay, and photos of Quintillion fiber optic cable impacts, North Slope, Alaska. Alaska Geobotany Center Publication AGC 18-01. University of Alaska Fairbanks, Fairbanks, AK, 74 pp. doi:10.18739/A28K74X6T (PDF)

  1. 2017

    1. Walker, D.A, Epstein, H.E., Leibman, M.O., Kumpula, T., Bhatt, U.S., Romanavsky, V., Kofinas, G., Khomutov, A.V., Matyshak, G., Raynolds, M.K., Ermokhina, K. and Curry, T. 2017. Yamal LCLUC Synthesis: 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 circump...Arctic. AGC Annual Report. University of Alaska Fairbanks, Fairbanks, AK. (Grant NNX14AD90G) (PDF)
    2. Walker, D.A. 2017. Second International Arctic Vegetation Archive Workshop, Prague, CZ, 30-31 March. Workshop Report to the IASC Secretariat. (PDF)
    3. Walker, D.A. 2017. Sustainable Arctic Infrastructure Forum (SAIF): An IASC Cross-cutting Workshop, Prague, CZ, 3 April. Workshop Report to the IASC Secretariat, 26 April. (PDF)
    4. Walker, D.A. 2017. Cumulative Effects of Arctic Oil Development - planning and designing for sustainability. Annual report to the National Science Foundation, submitted 8/27/2017. (PDF)

  1. 2016

    1. Walker, D.A, Epstein, H.E., Kofinas, G., Kumpula, T. and Leibman, M.O. 2016. Yamal LCLUC Synthesis: 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 circump...Arctic. AGC Annual Report. University of Alaska Fairbanks, Fairbanks, AK, 25 pp. (PDF)
    2. Walker, D.A. 2016. Cumulative Effects of Arctic Oil Development - planning and designing for sustainability. Annual report to the National Science Foundation, submitted 8/31/2016. (PDF)
    3. Walker, D.A., Kanevskiy, M., Shur, Y.L., Raynolds, M.K., Buchhorn, M. and Wirth, L.M. 2016. Road effects at airport study site, Prudhoe Bay, Alaska, Summer 2015. Alaska Geobotany Center Publication AGC 16-01. University of Alaska Fairbanks, Fairbanks, AK, 74 pp. doi:10.18739/A2VM42Z20 (PDF)

  1. 2015

    1. Walker, D.A. 2015. Cumulative Effects of Arctic Oil Development - planning and designing for sustainability. Annual report to the National Science Foundation, submitted 8/4/2015. (PDF)
    2. Walker, D.A. and J.L. Peirce (eds.) 2015. Rapid Arctic Transitions due to Infrastructure and Climate (RATIC): A contribution to ICARP III. Alaska Geobotany Center Publication AGC 15-02. University of Alaska Fairbanks, Fairbanks, AK. (PDF)
    3. Walker, D.A., Buchhorn, M., Kanevskiy, M., Matyshak, G.V., Raynolds, M.K., Shur, Y.L. and Wirth, L.M. 2015. Infrastructure-Thermokarst-Soil-Vegetation Interactions at Lake Colleen Site A, Prudhoe Bay, Alaska. Alaska Geobotany Center Publication AGC 15-01. University of Alaska Fairbanks, Fairbanks, AK, 92 pp. doi:10.18739/A2M61BQ8M (PDF)
    4. Walker, D.A., Epstein, H.E., Kumpula, T. and Liebman, M.O. 2015. Yamal LCLUC Synthesis: 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. AGC Annual Report. University of Alaska Fairbanks, Fairbanks, AK, 45 pp. (PDF)

  1. 2014

    1. Walker, D.A. 2014. Cumulative Effects of Arctic Oil Development - planning and designing for sustainability. Annual report to the National Science Foundation, submitted 9/16/2014. (PDF)
    2. Walker, D.A., Raynolds, M.K., Buchhorn, M., Peirce, J.L. (eds.) 2014. Landscape and Permafrost Changes in the Prudhoe Bay Oilfield, Alaska. Alaska Geobotany Center Publication AGC 14-01. University of Alaska Fairbanks, Fairbanks, AK. doi:10.18739/A24X54H5D (PDF)

  1. 2013

    1. Walker, D.A. 2013. Yamal LCLUC Synthesis: 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 Arct. Proposal to the National Aeronautics and Space Administration. (PDF)
    2. Walker, D.A., Bhatt, U.S., Buchhorn, M., Epstein, H.E., Forbes, B.C., Heim, B., Liebman, M.O., Raynolds, M.K., Frost, G.V. and Yu, Q. 2013. Adaptation to rapid land-use and climate changes on the Yamal Peninsula, Russia: Remote sensing and models for analyzing cumulative effects. AGC Annual Report. University of Alaska Fairbanks, Fairbanks, AK, 34 pp. (PDF)

  1. 2012

    1. Bhatt, U.S. 2012. Collaborative Research: Seasonality of circumpolar tundra - ocean and atmosphere controls and effects on energy and carbon budgets. AGC Final Report. University of Alaska Fairbanks, Fairbanks, AK. (PDF)
    2. Frost, G.V. Epstein, H.E. Walker, D.A. Matyshak, G.V. Ermokhina, K.A. 2012. The 2011 Expedition to Kharp, Southern Yamal Peninsula Region, Russia. AGC Data Report. University of Alaska Fairbanks, Fairbanks, AK, 83 pp. (PDF)
    3. Heim, B., Buchhorn, M., Hubberton, H.-W. 2012. Yamal 2011 Expedition. Alfred Wegener Institute for Polar and Marine Research (AWI) Publication, 14 pp. (PDF)
    4. Strauss, J., Ulrich, M., Buchhorn, M. 2012. Expeditions to permafrost 2012 : "Alaskan North Slope/Itkillik", "Thermokarst in Central Yakutia", "EyeSight-NAAT-Alaska". Reports on Polar and Marine Research, 65 pp. doi:net/10013/epic.40371 (PDF)
    5. Walker, D.A. 2012. Cumulative Effects of Arctic Oil Development - planning and designing for sustainability. Proposal to the National Science Foundation. (PDF)

  1. 2011

    1. Bhatt, U.S. 2011. Collaborative Research: Seasonality of circumpolar tundra - ocean and atmosphere controls and effects on energy and carbon budgets. AGC Annual Report. University of Alaska Fairbanks, Fairbanks, AK. (PDF)
    2. Walker, D.A, Bhatt, U.S, Epstein, H.E., Forbes, B.C., Liebman, M.O., Raynolds, M.K., Frost, G.V. and Yu, Q. 2011. Adaptation to rapid land-use and climate changes on the Yamal Peninsula, Russia: Remote sensing and models for analyzing cumulative effects. AGC Annual Report. University of Alaska Fairbanks, Fairbanks, AK, 21 pp. (PDF)
    3. Walker, D.A. 2011. Vulnerability, Impacts and Adaptations of Arctic Social-Ecological Systems. Proposal to the National Aeronautics and Space Administration. (PDF)
    4. Walker, D.A., Carlson, S., Frost, G.V., Matyshak, G.V., Leibman, M.E., Orechov, P., Khomutov, A.V., Khitun, O., Zhurbenko, M.P., Afonina, O., Barbour, E.M. 2011. 2010 Expedition to Krenkel Station, Hayes Island, Franz Josef Land Russia. AGC Data Report. University of Alaska Fairbanks, Fairbanks, AK. (PDF)
    5. Walker, D.A., Maier, H.A., Barbour, E.M., Raynolds, M.K. 2011. Final Report for A web-based multi-scale Arctic Geobotanical Atlas (AGA) for the Toolik Lake Field Station, Arctic Alaska, and the Circumpolar Region. AGC Final Report. University of Alaska Fairbanks, Fairbanks, AK, 13 pp. (PDF)
    6. Walker, D.A., Raynolds, M.K. 2011. An International Arctic Vegetation Database: A foundation for panarctic biodiversity studies. CAFF Strategy Series Report nr. 5, 29 pp. (PDF)

  1. 2010

    1. Bhatt, U.S. 2010. Collaborative Research: Seasonality of circumpolar tundra - ocean and atmosphere controls and effects on energy and carbon budgets. AGC Annual Report. University of Alaska Fairbanks, Fairbanks, AK, 5 pp. (PDF)
    2. Walker, D.A., Bhatt, U.S., Epstein, H.E., Forbes, B.C., Liebman, M.O. 2010. Adaptation to rapid land-use and climate changes on the Yamal Peninsula, Russia: Remote sensing and models for analyzing cumulative effects. AGC Annual Report. University of Alaska Fairbanks, Fairbanks, AK, 16 pp. (PDF)

  1. 2009

    1. Walker, D.A., Epstein, H.E., Leibman, M.E., Moskalenko, N.G., Kuss, J.P., Matyshak, G.V., Kaarlejärvi, E., Barbour, E.M. 2009. Data Report of the 2007 and 2008 Yamal Expeditions: Nadym, Laborovaya, Vaskiny Dachi, and Kharasavey. AGC Data Report. University of Alaska Fairbanks, Fairbanks, AK, 133 pp. (PDF)
    2. Walker, D.A., Orekhov, P., Frost, G.V., Matyshak, G., Epstein, H.E., Leibman, M.O., Khitun, O., Khomotov, A., Daanen, R., Gobroski, K., Maier, H.A. 2009. The 2009 Yamal Expedition to Ostrov Belyy and Kharp, Yamal Region, Russia. AGC Data Report. University of Alaska Fairbanks, Fairbanks, AK, 63 pp. (PDF)

  1. 2008

    1. Epstein, H., Bhatt, U., Steele, M., Walker, D.A. 2008. Collaborative Research: Seasonality of Circumpolar Tundra: Ocean and atmosphere controls and effects on energy and carbon budgets. Proposal to the National Science Foundation. (PDF)
    2. Walker, D.A. 2008. Remote very High Arctic Terrestrial Observatory Stations: A reconnaissance expedition to Isachsen, Mould Bay, and Green Cabin. Proposal to National Science Foundation, ARC-AON. (PDF)
    3. Walker, D.A. 2008. Application of Space-based Technologies and Models to Address Land-cover/Land-use Change problems on the Yamal Peninsula, Russia. AGC Annual Report. University of Alaska Fairbanks, Fairbanks, AK, 20 pp. (PDF)
    4. Walker, D.A. 2008. Biocomplexity associated with biogeochemical cycles in arctic frost-boil ecosystems. AGC Final Report. University of Alaska Fairbanks, Fairbanks, AK, 77 pp. (PDF)
    5. Walker, D.A. and Epstein, H.E. 2008. Collaborative Research: Greening of the Arctic - Synthesis and models to examine pan-Arctic vegetation change: climate, sea-ice, and terrain linkages. AGC Annual Report . University of Alaska Fairbanks, Fairbanks, AK, 16 pp. (PDF)
    6. Walker, D.A., Bhatt, U., Romanovsky, V., Kofinas, G. 2008. Adaptation to rapid land-use and climate changes on the Yamal Peninsula, Russia: Remote sensing and models for analyzing cumulative effects. Proposal to the National Aeronautics and Space Administration. (PDF)
    7. Walker, D.A., Epstein, H.E., Leibman, M.E., Moskalenko, N.G., Kuss, H.P., Matyshak, G.V., Kaarlejärvi, E., Forbes, B.C., Barbour, E.M. 2008. Data Report of the 2007 Yamal Expedition to Nadym, Laborovaya, and Vaskiny Dachi, Yamal Peninsula Region, Russia. AGC Data Report. University of Alaska Fairbanks, Fairbanks, AK. (PDF)

  1. 2007

    1. Walker, D.A. 2007. Application of Space-based Technologies and Models to Address Land-cover/Land-use Change problems on the Yamal Peninsula, Russia. AGC Annual Report. University of Alaska Fairbanks, Fairbanks, AK, 15 pp. (PDF)
    2. Walker, D.A. 2007. Collaborative Research: Greening of the Arctic - Synthesis and Models to Examine the Effects of Climate, Sea-ice, and Terrain on Circumpolar Vegetation Change. AGC Annual Report. University of Alaska Fairbanks, Fairbanks, AK, 8 pp. (PDF)

  1. 2006

    1. Barreda, J.E., Knudson, J.A., Walker, D.A., Raynolds, M.K., Kade, A.N., Munger, C.A. 2006. Biocomplexity of Patterned Ground Data Report, Dalton Highway, 2001-2005. AGC Data Report. University of Alaska Fairbanks, Fairbanks, AK, 252 pp. (PDF)
    2. Vonlanthen, C.M., Raynolds, M.K., Munger, C.A., Kade, A.N., Walker, D.A. 2006. Biocomplexity of Patterned Ground Isachsen Expedition, July 2005. AGC Data Report. University of Alaska Fairbanks, Fairbanks, AK, 86 pp. (PDF)
    3. Walker, D.A. 2006. IPY: Greening of the Arctic (GOA): North American Arctic Transect (NAAT). Proposal to National Science Foundation, IPY (declined). (PDF)
    4. Walker, D.A., Bhatt, U.S., Comiso, J.C., Epstein, H.E., Forbes, B.C., Jia, J., Kaplan, J.O., Kofinas, G.P., Leibman, M.O., Maier, H.A., Moskalenko, N.G., Raynolds, M.K., Romanovsky, V.E. 2006. Application of Space-based Technologies and Models to Address Land-cover/Land-use Change Problems on the Yamal Peninsula, Russia. Proposal to the National Aeronautics and Space Administration. (PDF)

  1. 2005

    1. Munger, C.A., Raynolds, M.K., Kade, A.N., Walker, D.A. 2005. Biocomplexity of Patterned Ground: Mould Bay Expedition. AGC Data Report, 62 pp. (PDF)
    2. Raynolds, M.K. 2005. Addendum to the 2003 Green Cabin, Banks Island Data Report. AGC Data Report. University of Alaska Fairbanks, Fairbanks, AK, 39 pp. (PDF)
    3. Walker, D.A. 2005. Greening of the Arctic: Synthesis and models to examine pan-Arctic vegetation change: climate, sea-ice, and terrain linkages. Proposal to the National Science Foundation. (PDF)
    4. Walker, D.A. 2005. Towards an Arctic Geographic Information System: A web-based plant-to-planet-scale geobotanical atlas centered on the Toolik Lake Field Station. (PDF)
    5. Walker, D.A. 2005. Biocomplexity of Small Patterned-Ground Ecosystems in the Arctic. AGC Data Report. , 26. (PDF)

  1. 2004

    1. Munger, C.A., Raynolds, M.K., Walker, D.A. 2004. July 2003 Banks Island Expedition: Vegetation, biomass, NDVI, soil, thaw layer, invertebrates, decomposition, biogeochemistry and turf-hummock studies. AGC Data Report, 72 pp. (PDF)
    2. Raynolds, M.K., Walker, D.A., Martin, C.R. 2004. Biocomplexity of Frost-Boil Ecosystems: Snow Data Report. AGC Data Report, 32 pp. (PDF)

  1. 2003

    1. NRC, Orians, G., Albert, T., Brown, G., Cameron, R., Cochran, P., Gerlach, S., Gramling, R., Gryc, G., Hite, D., Kennicutt II, M., Lachenbruch, A., Lowry, L., L., M., Pielou, C., Sedingr, J., Lindstedt-Siva, K.J., Speer, L., Walker, D.A., NAS, N.A.o.S.-., NRC, N.R.C.-. 2003. Cumulative Environmental Effects of Oil and Gas Activities on Alaska's North Slope (Summary). (PDF)
    2. NRC, Orians, G., Albert, T., Brown, G., Cameron, R., Cochran, P., Gerlach, S., Gramling, R., Gryc, G., Hite, D., Kennicutt II, M., Lachenbruch, A., Lowry, L., L., M., Pielou, C., Sedingr, J., Lindstedt-Siva, K.J., Speer, L., Walker, D.A., NAS, N.A.o.S.-., NRC, N.R.C.-. 2003. Cumulative Environmental Effects of Oil and Gas on the North Slope (Brief). (PDF)
    3. Raynolds, M.K., Walker, D.A. 2003. Banks Island July 2003 Field Report. AGC Field Report, 19 pp. (PDF)
    4. Tarnocai, C.T. 2003. Turf hummocks along the Arctic Bioclimate Gradient: Their characteristics and development. AGC Field Report. , 3. (PDF)
    5. Walker, D.A., Raynolds, M.K., Martin, C.R. 2003. Snow on the Alaska North Slope Grids, April 2003. AGC Data Report, 28 pp. (PDF)

  1. 2002

    1. Gould, W.A. 2002. Integrating Research and Education: Biocomplexity associated with biogeochemical cycles in arctic frost-boil ecosystems. AGC Field Report. University of Alaska Fairbanks, Fairbanks, AK, 10 pp. (PDF)
    2. Gould, W.A., Walker, D.A., Gonzalez, G. 2002. Biocomplexity Western Canadian Transect Reconnaisance. AGC Field Report.. University of Alaska Fairbanks, Fairbanks, AK, 10 pp. (PDF)
    3. Raynolds, M.K., Martin, C.R., Walker, D.A., Moody, A., Wirth, D., Thayer-Snyder, C. 2002. ATLAS Vegetation Studies: Seward Peninsula, Alaska, 2000: Vegetation, Soil, and Site Information, with Seward Vegetation Map. AGC Data Report. University of Alaska Fairbanks, Fairbanks, AK, 125 pp. (PDF)
    4. Walker, D.A. 2002. Field Report for Walker ATLAS and Biocomplexity projects. AGC Field Report. , 11. (PDF)
    5. Walker, D.A., Raynolds, M.K., Matveyeva, N. 2002. Trip Report Russia ATLAS project. AGC Field Report. , 38. (PDF)

  1. 2000

    1. Edwards, E.J., Moody, A., Walker, D.A. 2000. A western Alaskan transect to examine interactions of climate, substrate, vegetation, and spectral reflectance: ATLAS grids and transects, 1998-1999. NEAML Data Report. , 44 pp. + appendices.
    2. Gonzalez, G., Gould, W.A., Raynolds, M.K. 2000. 1999 Canadian transect for the Circumpolar Arctic Vegetation Map. AGC Data Report, 89 pp.

  1. 1999

    1. Comiso, J. 1999. Bootstrap sea ice concentrations for NIMBUS-7SMMR and DMSP SSM/I, June to September 2001.
    2. Markon, C.J., Walker, D.A. 1999. Proceedings of the Third International Circumpolar Arctic Vegetation Mapping Workshop. USGS Open File Report No. 99-551. , 79. (PDF)

  1. 1997

    1. Walker, D.A., Auerbach, N.A., Nettleton, T.K., Gallant, A., Murphy, S.M. 1997. Happy Valley Permanent Vegetation Plots. Arctic System Science Flux Study Data Report. (PDF)
    2. Walker, D.A., Elias, S.A., Auerbach, N.A., Short, S.K. 1997. Final Report: Alpine biodiversity, Fort Richardson, Alaska. Legacy Resource Management Program Project DAMD17-93-J-3038. , 66. (PDF)

  1. 1996

    1. Elias, S.A., Short, S.K., Walker, D.A., Auerbach, N.A. 1996. Final Report: Historical Biodiversity at Remote Air Force Sites in Alaska. Legacy Resource Management Program Project #0742. , 123. (PDF)
    2. Walker, D.A., Lillie, A.C. 1996. Proceedings of the Second Circumpolar Arctic Vegetation Mapping Workshop and the CAVM-North American Workshop. Second Circumpolar Arctic Vegetation Mapping Workshop and The CAVM-North American Workshop. 52. (PDF)

  1. 1995

    1. Comiso, J. 1995. SSM/I sea ice concentrations using the bootstrap algorithm. NASA Techical Report NAS 1.15:111234; NASA-TM-111234. , 53. (PDF)
    2. Elias, S.A., Short, S.K., Walker, D.A., Auerbach, N.A. 1995. Historical biodiversity, DEW line stations, Alaska. Legacy Resource Management Program Project #0742. , 58.

  1. 1994

    1. Auerbach, N.A., Moskalenko, N.G., Walker, D.A. 1994. Barrow DEW Line Station, Alaska, Vegetation transect study. DOD Data Report. (Legacy Management Program), 37.
    2. Lewis, B.E., Walker, D.A. 1994. Vegetation survey, Fort Richardson, Alaska. Alpine Biodiversity Project, 1993.
    3. Walker, D.A. 1994. Information: Toward a new arctic vegetation map: St. Petersburg workshop. Arctic and Alpine Research, 27:103-104. (Presentation)

  1. 1991

    1. Walker, D.A., Barry, N. 1991. Toolik Lake permanent vegetation plots: site factors, soil physical and chemical properties, plant species cover, photographs, and soil descriptions. R4D Program Data Report, 110 pp. (PDF)

  1. 1989

    1. Walker, M.D., Walker, D.A., Everett, K.R. 1989. Wetland soils and vegetation, Arctic Foothills, Alaska. Biological Report. 7(89), 89.

  1. 1988

    1. Walker, D.A. 1988. Terrain and vegetation types of the Sagavanirktok Quadrangle, Alaska. NASA-Ames University Consortium Final Report, 56 pp.
    2. Walker, M.D., Walker, D.A., Acevedo, W. 1988. Hierarchical gradient analysis of northern Alaska landscapes: understanding vegetation-environmental interactions at macro- and mesoscales. Final report to NASA Ames Research Center under NASA Ames University Consortium Agreement NCA2-106.

  1. 1987

    1. Walker, D.A., Acevedo, W. 1987. Vegetation and a Landsat-derived land cover map of the Beechey Point Quadrangle, Arctic Coastal Plain, Alaska. CRREL Report 87-5. , 63 (plus Map L-0211).
    2. Walker, D.A., Cate, D., Brown, J., Racine, C. 1987. Disturbance and recovery of arctic Alaskan tundra terrain: a review of recent investigations. CRREL Report 87-11. , 63.
    3. Walker, D.A., Lederer, N.D. 1987. Toposequence study: site factors, soil physical and chemical properties and plant species cover. R4D Program Data Report, 29.
    4. Walker, D.A., Lederer, N.D., Walker, M.D. 1987. Permanent vegetation plots (Imnavait Creek): site factors, soil physical and chemical properties, and plant species cover. R4D Program Data Report, 43 pp. (PDF)
    5. Walker, D.A., Webber, P.J., Lederer, N.D., Walker, M.D. 1987. Terrain and vegetation of the Department of Energy R4D research site, Imnavait Creek, Alaska: I. Classification and mapping. R4D Program Data Report. , 40 pages + appendices.

  1. 1986

    1. Walker, D.A., Binnian, E.F., Lederer, N.D., Nordstrand, E.A., Meehan, R.H., Walker, M.D., Webber, P.J. 1986. Cumulative landscape impacts in the Prudhoe Bay Oil Field 1949-1983. USFWS Final Report. (PDF)

  1. 1985

    1. Walker, D.A. 1985. Vegetation and environmental gradients of the Prudhoe Bay region, Alaska. CRREL Report 85-14. , 240. (PDF)
    2. Walker, D.A. 1985. Illustrated surface-form and vegetation legend for geobotanical mapping of the Arctic Coastal Plain of northern Alaska.
    3. Walker, D.A., Lederer, N.D., Walker, M.D. 1985. Observations at the Prudhoe Bay Rolligon Site seven years following the test. Attachment G. Baseline Monitoring Methods and Sensitivity Analysis of Alaskan Arctic Tundra. .
    4. Walker, D.A., Walker, M.D., Webber, P.J. 1985. Vegetation analysis of the DOE/R4D research site. R4D Program Data Report.
    5. Walker, D.A., Webber., P.J. 1985. Vegetation analysis and mapping of the R4D research site.
    6. Walker, M.D., Walker, D.A. 1985. The application of detrended correspondence analysis to Landsat-assisted vegetation mapping of the Sagavanirktok Quadrangle, Alaska. Phase I - Ordination of sample sites and vegetation sites.
    7. Webber, P.J., Walker, D.A., Komárková, V., Ebersole, J.J. 1985. Baseline monitoring methods and sensitivity analysis of Alaskan arctic tundra.

  1. 1984

    1. Walker, D.A., Cate, D., Brown, J. 1984. Disturbance and recovery of Arctic Alaskan tundra terrain: a summary of recent CRREL research. CRREL Report. , 177.
    2. Walker, D.A., Lederer, N.D. 1984. 1984 ground reference data in support of the North Slope Borough's mapping effort in northern Alaska. Final report to the Environmental Systems Research Institute. AGC Final Report. University of Alaska Fairbanks, Fairbanks, AK, 83 pp.
    3. Walker, D.A., M. D. Walker, N.D. Lederer, Webber, P.J. 1984. The use of geobotanical maps and automated mapping techniques to study the historical changes in the Prudhoe Bay oil field, Alaska.

  1. 1983

    1. Simmons, C.L., Everett, K.R., Walker, D.A., Linkins, A.E., Webber, P.J. 1983. Sensitivity of plant communities and soil flora to seawater spills, Prudhoe Bay, Alaska. CRREL Report. , 35. (PDF)
    2. Walker, D.A., Lederer, N.D. 1983. Vegetation aerial and ground reference data for the Noatak and Kotzebue 1:250,000-scale quadrangles. Report to Environmental Systems Research Institute. , 56.
    3. Walker, D.A., Webber, P.J., Everett, K.R. 1983. 1:63,360-scale geobotanical mapping in the Arctic National Wildlife Refuge. Final report to the U.S. Army Cold Regions Research and Engineering Laboratory.

  1. 1982

    1. Everett, K.R., Walker, D.A. 1982. Annotated and illustrated legend to 1981 SOHIO master maps. SOHIO Alaska Petroleum Co. , 98.
    2. Everett, K.R., Walker, D.A. 1982. Geobotanical reconnaissance of the SOHIO West (Kuparuk Field). Final report for Contract No. 81JL71. SOHIO Alaska Petroleum Co. , 35 plus appendices.
    3. Walker, D.A., Everett, K.R., Acevedo, W., Gaydos, L., Brown, J., Webber, P.J. 1982. Landsat-assisted environmental mapping in the Arctic National Wildlife Refuge, Alaska. CRREL Report 82-57. , 68.
    4. Walker, D.A., Everett, K.R., Webber, P.J., Moses, T.A. 1982. Geobotanical maps and surface hydrology (of the Eileen West End Development, Prudhoe Bay, AK). Final report to LGL Research Assoc., Inc., Alaska.
    5. Webber, P.J., Klinger, L.F., Walker, D.A. 1982. The effects of a gravel road on Arctic Coastal Plain tundra (Sect. G). Final report to Woodward-Clyde Consultants, Prudhoe Bay Unit Waterflood Monitoring Program.

  1. 1981

    1. Everett, K.R., Walker, D.A. 1981. The landforms, vegetation and soils of the Sagavanirktok River delta region, Prudhoe Bay, Alaska. Final report for Contract No. 81JL71 to SOHIO Alaska Petroleum Co. SOHIO Alaska Petroleum Co. , 8.
    2. Simmons, C.L., Walker, D.A., Webber, P.J., Everett, K.R. 1981. Sea-water sensitivities of selected plant communities of Prudhoe Bay, Alaska. CRREL Progress Report. , 41.

  1. 1980

    1. Simmons, C.L., Walker, D.A., Webber, P.J. 1980. Sea water tolerances of selected vegetation of Prudhoe Bay, Alaska. CRREL Progress Report, 29 pp.
    2. Walker, D.A., Everett, K.R., Webber, P.J. 1980. Vegetation, soil and landform reconnaissance survey in the Kuparuk Oil Field. ARCO Oil and Gas Co. , 31.
    3. Walker, D.A., Everett, K.R., Webber, P.J., Brown, J. 1980. Geobotanical Atlas of the Prudhoe Bay Region, Alaska. CRREL Report 80-14, 69. (PDF - 92MB)
    4. Walker, D.A., Webber, P.J. 1980. INSTAAR/USGS/CRREL LANDSAT mapping program. CRREL Internal Report. , 52.
    5. Walker, D.A., Webber, P.J. 1980. Master maps and ecological data related to potential impacts of Project Waterflood at Prudhoe Bay, Alaska.
    6. Walker, D.A., Webber, P.J. 1980. Vegetation mapping. Environmental engineering and ecological baseline investigations along the Yukon River-Prudhoe Bay Haul Road. , 45-58.
    7. Walker, D.A., Webber, P.J. 1980. Geobotanical mapping of the SOHIO portion of the Prudhoe Bay Oil Field. SOHIO Alaska Petroleum Co. , 10.
    8. Walker, D.A., Werbe, N. 1980. Dust impacts on vegetation. Environmental engineering and ecological baseline investigations along the Yukon River-Prudhoe Bay Haul Road. , 126-127.

  1. 1979

    1. Walker, D.A., Bowman, K., Webber, P.J. 1979. Summer 1978 observations on Alaska tundra oil spills and rolligon test sites. CRREL Report 591, 52.
    2. Walker, D.A., Webber, P.J. 1979. Report of Yukon River to Prudhoe Bay vegetation mapping program. CRREL Internal Report, 186. (PDF)
    3. Webber, P.J., Komárková, V., Walker, D.A., Werbe, N. 1979. Geobotanical studies along a latitudinal gradient between the Yukon River and Prudhoe Bay, Alaska. CRREL Internal Repor, 366.

  1. 1978

    1. Abele, G., Walker, D.A., Brown, J., Brewer, M.C., Atwood, D.M. 1978. Effects of low ground pressure vehicle traffic on tundra at Lonely, Alaska. CRREL Special Report 78-16. (78-16), 63.

  1. 1977

    1. Walker, D.A., Webber, P.J., Everett, K.R., Brown, J. 1977. The effects of low-pressure wheeled vehicles on plant communities and soils at Prudhoe Bay, Alaska. CRREL Special Report 77-17. , 49.

  1. 1976

    1. Walker, D.A., Webber, P.J. 1976. Vegetation mapping of selected sites along the Yukon River-Prudhoe Bay Haul Road, Alaska. CRREL Progress Report. , 46 (plus 10 maps).

  1. 1973

    1. Webber, P.J., Walker, D.A. 1973. Vegetation maps of the Gas Arctic Test Site, Prudhoe Bay, Alaska.

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Last modified September 13, 2017