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  4. Alaska Arctic Lake Cover Map

Alaska Arctic Lake Cover Map

Lake cover strongly affects the reflectance of the land surface over large areas of Alaska, and was useful for identifying extensive wetlands. Lake cover was based on the number of AVHRR water pixels in each mapped polygon, divided by the number of pixels in the polygon. Since the imagery has a pixel size of 1 km^2, lake cover is underestimated for areas with many small lakes. Pixels within 2 km of the coastline were excluded to avoid ocean water. The percent cover data were grouped into six categories: 25%.

Back to Alaska Arctic Tundra Vegetation Map

Click Website Link :: Toolik Arctic Geobotanical Atlas below for details on legend units, photos of map units and plant species, glossary, bibliography and links to ground data.

Map Themes AVHRR NDVI, Bioclimate Subzone, Elevation, False Color-Infrared, Floristic Province, Lake Cover, Landscape, Substrate Chemistry, Vegetation

References

Raynolds, M.K., Walker, D.A., Maier, H.A. 2005. Plant community-level mapping of arctic Alaska based on the Circumpolar Arctic Vegetation Map. Phytocoenologia. 35(4):821-848. http://doi.org/10.1127/0340-269X/2005/0035-0821

Raynolds, M.K., Walker, D.A., Maier, H.A. 2006. Alaska Arctic Tundra Vegetation Map. 1:4,000,000. U.S. Fish and Wildlife Service. Anchorage, AK.

Data ja resurssit

Lisätietoja

Kenttä Arvo
Ylläpitäjä Donald A. (Skip) Walker
Viimeksi päivitetty joulukuu 17, 2019, 10:06 (AKST)
Luotu joulukuu 17, 2019, 10:06 (AKST)
Tila Complete
Data Types GIS
Other Contacts Martha Raynolds (Email: mkraynolds@alaska.edu), Alaska Geobotany Center (AGC) (Email: uaf-agc@alaska.edu)
ISO Topics biota, geoscientificInformation, inlandWaters
Geo-keywords Alaska, Arctic