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Circumpolar Arctic AVHRR NDVI Map
The normalized difference vegetation index (NDVI) is a measure of greenness. NDVI was calculated as: NDVI = (NIR - R) / (NIR + R), where NIR is the spectral reflectance in the... -
Toolik Lake Grid Digital Elevation Map (DEM)
This Digital Elevation Map (DEM) was created from the contour lines of the Aerometrics orthophoto from 1996. In addition the 1 x1 km CALM grid with 121 points (every 100 m) was... -
AVA-CA: Canadian Western Arctic Vegetation Plots (Lambert 1968)
Arctic Vegetation Archive - Canada: Canadian Western Arctic Vegetation Plots. The vegetation and soils of the Low Arctic Subalpine Zone of the Richardson and British Mountains... -
AVA-AK: Happy Valley Vegetation Plots (Walker et al. 1997)
Arctic Vegetation Archive - Alaska: Happy Valley Vegetation Plots. The Happy Valley research site is located along the Sagavanirktok River in a glaciated valley of the northern... -
Circumpolar Arctic Coastline and Treeline Map
The map extent is the Arctic, defined as the Arctic Bioclimate Zone, the area of the Earth with tundra vegetation and an Arctic climate and Arctic flora. It excludes tundra... -
Circumpolar Arctic Floristic Provinces Map
Floristic sectors characterize the considerable east-west floristic variation within the subzones. The more northern Arctic bioclimate subzones have a relatively consistent core... -
The Alaska Arctic Vegetation Archive (AVA-AK)
Walker, D.A., Breen, A.L., Druckenmiller, L.A., Wirth, L.w., Fisher, W, Raynolds, M.K, Sibik, J., Walker, M.D., Hennekens, S., Boggs, K., Boucher, T., Buchhorn, M., Bültmann,... -
Circumpolar Arctic AVHRR Summer Warmth Index 1982-2003 (Raynolds et al. 2008)
This data set was calculated from monthly AVHRR thermal infrared data (Comiso 2003). Summer Warmth Index (SWI) is the sum of monthly mean temperatures above 0 degrees Celsius.... -
AVA-AK: ATLAS-2 Vegetation Studies (Raynolds et al. 2002)
Arctic Vegetation Archive - Alaska: ATLAS-2 The ATLAS-2 dataset is part of larger NSF-funded Arctic Transition in Land-Atmosphere System (ATLAS) project. ATLAS-2 contains the... -
AVA-AK: Pingo Vegetation Plots (M. Walker 1990)
Arctic Vegetation Archive - Alaska: Pingo Vegetation Plots. The vegetation and floristics of pingos on the Central Arctic Coastal Plain of Alaska were described by M. D. Walker... -
AVA-AK: Tundra Fires (Breen 2015)
Arctic Vegetation Archive - Alaska: Tundra Fires. The vegetation associated with tundra fire scars on the Seward Peninsula and northern foothills of the Brooks Range in Arctic... -
AVA-AK: International Tundra Experiment Vegetation Plots (Elmendorf 2012b)
Arctic Vegetation Archive - Alaska: International Turdra Experiment Vegetation Plots. The International Tundra Experiment (ITEX) is an international scientific collaboration to... -
Vegetation Mapping of the Arctic Refuge Coastal Plain (Jorgenson et al. 1996)
This landcover map of the coastal plain of the Arctic National Wildlife Refuge in northeastern Alaska was produced by the U.S. Fish & Wildlife Service, and published in... -
Kuparuk River Basin Hydrology Map
Hydrology of the Kuparuk River basin, including streams, rivers, ponds, lakes, and coastline. The map includes line features as well as polygon features (.shp). This map was... -
AVA-AK: Western Alaska Vegetation Plots (Hanson 1951)
Arctic Vegetation Archive - Alaska: Western Alaska Vegetation Plots. Sampling of grassland, marsh and other plant communities across Alaska was completed by Hanson (1951) to... -
Upper Kuparuk River Region Vegetation (Walker and Maier 2008)
This map contains a group of vegetation maps at three scales in the vicinity of the Toolik Field Station, Alaska. The maps are intended to support research at the field station.... -
Alaska Arctic Substrate Chemistry Map
Differences in substrate chemistry, including pH, govern the availability of essential plant nutrients. Soils in the circumneutral range (pH 5.5-7.2) are generally mineral rich,... -
AVA-AK: Atqasuk Vegetation Plots (Komárková & Webber 1980; Villarreal 2013)
Arctic Vegetation Archive - Alaska: Atqasuk. The Atqasuk vegetation plots were originally described and mapped by Drs. Vera Komárková and Patrick J. Webber in 1975 as part of... -
Circumpolar Arctic Lake Cover Map
Lake cover strongly affects the reflectance of the land surface over large areas of the Arctic, and was useful for identifying extensive wetlands. Lake cover was based on the... -
AVA-AK: Flux Towers-Zona (Barrow, Atqasuk, Ivotuk) (Davidson et al. 2016a, Da...
Arctic Vegetation Archive - Alaska: Flux Towers-Zona: Vegetation plots within the Flux Towers-Zona project eddy covariance tower footprints at Barrow: (three towers) including...