Alaska Arctic Vegetation

Oct 26, 2010 (Last modified May 12, 2011)
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Description:
Data for the Alaska Arctic Tundra Vegetation Map (AATVM) was obtained from the Circumpolar Arctic Vegetation Map (CAVM). A 1:4 million-scale color-infrared (CIR) image of AVHRR satellite data was used as a base map. Data for each 1-km AVHRR pixel were selected at the time of maximum greenness from biweekly images from 11 July to 30 August 1993 and 1995. The minimum size on the map is 14 km diameter for polygon features and 8 km for linear features. The dominant vegetation type of each polygon was mapped with the recognition that polygons at this scale contain many vegetation types. Some of this heterogeneity can be characterized by topographic sequence.
Data Provided By:
Alaska Geobotany Center (http://www.geobotany.uaf.edu/)
Content date:
1993 to 1995
Contact Organization:
Alaska Geobotany Center
Contact Person(s):
Use Constraints:
Data provided by the Alaska Geobotany Center are copyright protected under the provisions of a Creative Commons Attribution-NonCommercial-ShareAlike License (https://creativecommons.org/licenses/by-nc-sa/1.0/). Materials may be freely downloaded, reprinted and redistributed for non-commercial use. Reproduction and redistribution of the materials on this web site, including derivative works, shall give credit to the Alaska Geobotany Center and remain subject to the above license. Any web pages that use this material shall contain a link pointing to the Alaska Geobotany Center home page (http://www.geobotany.uaf.edu/).
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Tags:
physiogonomy, biota, environment, vegetation, tundra
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