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Aga circumpolar coastline treeline 2003

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 regions that lack an Arctic flora, such as the boreal oceanic areas of Iceland, the Aleutian Island, and the alpine tundra regions south of latitudinal tree line. Tundra is a physiognomic descriptor of low-growing vegetation beyond the cold limit of tree growth, both at high elevation (alpine tundra) and at high latitude (arctic tundra). Tundra vegetation types are composed of various combinations of herbaceous plants, shrubs, mosses and lichens.

Tree line defines the southern limit of the Arctic Bioclimate Zone. In some regions of the Arctic, especially Canada and Chukotka, the forest tundra transition is gradual and interpretation of treeline directly from the AVHRR imagery was not possible.

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Data and Resources

  • Download

    Download :: GIS Data

    aga_circumpolar_coastline_treeline_2003_GIS.zip (2.37 MB)

  • View website

    Website :: Toolik Arctic Geobotanical Atlas

    http://www.arcticatlas.org/maps/themes/cp/cpcoast

Status: Complete
Type: Data
Data Types: Image, GIS
Primary Contacts
Name: Martha Raynolds
Email: mkraynolds@alaska.edu
Other Contacts
Name: Donald A. (Skip) Walker
Email: dawalker@alaska.edu
Regions
Arctic

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Circumpolar Arctic Vegetation Map

Direct Record Link
http://agc.portal.gina.alaska.edu/catalog/entries/5421-circumpolar-arctic-coastline-and-treeline-map