Hasil Pencarian - Donald A Walker

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  1. 1
    Increased wetness confounds Landsat-derived NDVI trends in the central Alaska North Slope region, 1985–2011

    Increased wetness confounds Landsat-derived NDVI trends in the central Alaska North Slope region, 1985–2011 oleh Martha K Raynolds, Donald A Walker

    Diterbitkan 2016-01-01
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  2. 2
    Influence of BRDF on NDVI and biomass estimations of Alaska Arctic tundra

    Influence of BRDF on NDVI and biomass estimations of Alaska Arctic tundra oleh Marcel Buchhorn, Martha K Raynolds, Donald A Walker

    Diterbitkan 2016-01-01
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  3. 3
    Regional and landscape-scale variability of Landsat-observed vegetation dynamics in northwest Siberian tundra

    Regional and landscape-scale variability of Landsat-observed vegetation dynamics in northwest Siberian tundra oleh Gerald V Frost, Howard E Epstein, Donald A Walker

    Diterbitkan 2014-01-01
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  4. 4
    Recent dynamics of arctic and sub-arctic vegetation

    Recent dynamics of arctic and sub-arctic vegetation oleh Howard E Epstein, Isla Myers-Smith, Donald A Walker

    Diterbitkan 2013-01-01
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  5. 5
    Differentiating among Four Arctic Tundra Plant Communities at Ivotuk, Alaska Using Field Spectroscopy

    Differentiating among Four Arctic Tundra Plant Communities at Ivotuk, Alaska Using Field Spectroscopy oleh Sara N. Bratsch, Howard E. Epstein, Marcel Buchhorn, Donald A. Walker

    Diterbitkan 2016-01-01
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  6. 6
    Plant succession on glacial moraines in the Arctic Brooks Range along a >125,000-year glacial chronosequence/toposequence

    Plant succession on glacial moraines in the Arctic Brooks Range along a >125,000-year glacial chronosequence/toposequence oleh Shawnee A. Kasanke, Donald A. Walker, F. Stuart Chapin, Daniel H. Mann

    Diterbitkan 2023-12-01
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  7. 7
    Patterned-ground facilitates shrub expansion in Low Arctic tundra

    Patterned-ground facilitates shrub expansion in Low Arctic tundra oleh Gerald V Frost, Howard E Epstein, Donald A Walker, Georgiy Matyshak, Ksenia Ermokhina

    Diterbitkan 2013-01-01
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  8. 8
    Landscape patterns of carbon fluxes in natural and disturbed ice-wedge-polygon tundra

    Landscape patterns of carbon fluxes in natural and disturbed ice-wedge-polygon tundra oleh Anja Kade, Donald A. Walker, Martha K. Raynolds, Amy L. Breen, Olivia M. Hobgood

    Diterbitkan 2024-12-01
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  9. 9
    Ground-Based Hyperspectral Characterization of Alaska Tundra Vegetation along Environmental Gradients

    Ground-Based Hyperspectral Characterization of Alaska Tundra Vegetation along Environmental Gradients oleh Marcel Schwieder, Howard E. Epstein, Martha K. Raynolds, Marcel Buchhorn, Donald A. Walker, Birgit Heim

    Diterbitkan 2013-08-01
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  10. 10
    Regional Patterns and Asynchronous Onset of Ice-Wedge Degradation since the Mid-20th Century in Arctic Alaska

    Regional Patterns and Asynchronous Onset of Ice-Wedge Degradation since the Mid-20th Century in Arctic Alaska oleh Gerald V. Frost, Tracy Christopherson, M. Torre Jorgenson, Anna K. Liljedahl, Matthew J. Macander, Donald A. Walker, Aaron F. Wells

    Diterbitkan 2018-08-01
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  11. 11
    Drivers of heterogeneity in tundra vegetation productivity on the Yamal Peninsula, Siberia, Russia

    Drivers of heterogeneity in tundra vegetation productivity on the Yamal Peninsula, Siberia, Russia oleh Morgan S Tassone, Howard E Epstein, Amanda H Armstrong, Uma S Bhatt, Gerald V Frost, Birgit Heim, Martha K Raynolds, Donald A Walker

    Diterbitkan 2024-01-01
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  12. 12
    Arctic roads and railways: social and environmental consequences of transport infrastructure in the circumpolar North

    Arctic roads and railways: social and environmental consequences of transport infrastructure in the circumpolar North oleh Olga Povoroznyuk, Warwick F. Vincent, Peter Schweitzer, Roza Laptander, Mia Bennett, Fabrice Calmels, Dmitrii Sergeev, Christopher Arp, Bruce C. Forbes, Pascale Roy-Léveillée, Donald A. Walker

    Diterbitkan 2023-06-01
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  13. 13
    Recent Declines in Warming and Vegetation Greening Trends over Pan-Arctic Tundra

    Recent Declines in Warming and Vegetation Greening Trends over Pan-Arctic Tundra oleh Igor V. Polyakov, Compton J. Tucker, Jorge E. Pinzon, Howard E. Epstein, Josefino C. Comiso, Peter A. Bieniek, Donald A. Walker, Martha K. Raynolds, Uma S. Bhatt

    Diterbitkan 2013-08-01
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  14. 14
    Changing seasonality of panarctic tundra vegetation in relationship to climatic variables

    Changing seasonality of panarctic tundra vegetation in relationship to climatic variables oleh Uma S Bhatt, Donald A Walker, Martha K Raynolds, Peter A Bieniek, Howard E Epstein, Josefino C Comiso, Jorge E Pinzon, Compton J Tucker, Michael Steele, Wendy Ermold, Jinlun Zhang

    Diterbitkan 2017-01-01
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  15. 15
    Climate drivers of Arctic tundra variability and change using an indicators framework

    Climate drivers of Arctic tundra variability and change using an indicators framework oleh Uma S Bhatt, Donald A Walker, Martha K Raynolds, John E Walsh, Peter A Bieniek, Lei Cai, Josefino C Comiso, Howard E Epstein, Gerald V Frost, Robert Gersten, Amy S Hendricks, Jorge E Pinzon, Larry Stock, Compton J Tucker

    Diterbitkan 2021-01-01
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  16. 16
    Spatial patterns of arctic tundra vegetation properties on different soils along the Eurasia Arctic Transect, and insights for a changing Arctic

    Spatial patterns of arctic tundra vegetation properties on different soils along the Eurasia Arctic Transect, and insights for a changing Arctic oleh Howard E Epstein, Donald A Walker, Gerald V Frost, Martha K Raynolds, Uma Bhatt, Ronald Daanen, Bruce Forbes, Jozsef Geml, Elina Kaärlejarvi, Olga Khitun, Artem Khomutov, Patrick Kuss, Marina Leibman, Georgy Matyshak, Nataliya Moskalenko, Pavel Orekhov, Vladimir E Romanovsky, Ina Timling

    Diterbitkan 2020-01-01
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  17. 17
    Cumulative impacts of a gravel road and climate change in an ice-wedge-polygon landscape, Prudhoe Bay, Alaska

    Cumulative impacts of a gravel road and climate change in an ice-wedge-polygon landscape, Prudhoe Bay, Alaska oleh Donald A. Walker, Martha K. Raynolds, Mikhail Z. Kanevskiy, Yuri S. Shur, Vladimir E. Romanovsky, Benjamin M. Jones, Marcel Buchhorn, M. Torre Jorgenson, Jozef Šibík, Amy L. Breen, Anja Kade, Emily Watson-Cook, Georgy Matyshak, Helena Bergstedt, Anna K. Liljedahl, Ronald P. Daanen, Billy Connor, Dmitry Nicolsky, Jana L. Peirce

    Diterbitkan 2022-12-01
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