5 datasets found

Formats: JPEG Tags: Arctic Alaska

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  • Alaska Arctic Vegetation Map

    Mapped polygons at 1:7.5 million scale contain many vegetation types. The map portrays the zonal vegetation within each mapped polygon. Zonal sites are areas where the...
  • Alaska 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...
  • 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,...
  • Alaska Arctic Landscape Map

    The landscape physiography map displays regions of plains, hills, mountains, glaciers and lakes. Generally, plains are flat or gently rolling landscapes less than 200 m above...
  • Arctic Alaska Vegetation Map

    The Arctic Alaska Tundra Vegetation Map portrays the vegetation of the Arctic region of Alaska using 33 map units. The general legend and coloring scheme are the same as the...