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Aga circumpolar landscape age 2009

Circumpolar Landscape Age Map (Raynolds et al. 2008)

The landscape age map shows the length of time (in thousands of years) that Arctic landscapes have been available for plant colonization and the development of plant communities (Raynolds et al 2008). For most areas, this would be the time since the most recent deglaciation. Other areas first became available for plant colonization after emerging from under water due to drainage of glacial lakes or isostatic rebound. Areas for which no Wisconsin glaciation is known, were coded as 9999.These data came mostly from Ehlers, J. and P. L. Gibbard (eds., 2004). The map was based on the Circumpolar Arctic Vegetation Map (CAVM Team 2003) shapefile, with an attribute added for landscape age. Polygon boundaries were modified where necessary to follow glaciation data.

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References

Elvebakk, A. 1999. Bioclimate delimitation and subdivisions of the Arctic. Pages 81-112 in I. Nordal and V. Y. Razzhivin, editors. The Species Concept in the High North - A Panarctic Flora Initiative. The Norwegian Academy of Science and Letters, Oslo.

Yurtsev, B. A. 1994. Floristic divisions of the Arctic. Journal of Vegetation Science 5:765-776.

Complete

Data and Resources

  • Download

    Download :: GIS Data

    aga_circumpolar_landscape_age_2009_shp.zip (16.5 MB)

  • Download

    Download :: Publication

    Raynolds_et_al_2009_CJRS_age.pdf (4.36 MB)

  • Download

    Download :: Map Image

    aga_circumpolar_landscape_age_2009.jpg (1.18 MB)

Status: Complete
Type: Data
Data Types: GIS, Image, Map
Primary Contacts
Name: Martha Raynolds
Email: mkraynolds@alaska.edu
Regions
Arctic

Collections
Circumpolar Arctic Vegetation Map
All Maps

Direct Record Link
http://agc.portal.gina.alaska.edu/catalog/entries/5519-circumpolar-landscape-age-map-raynolds-et-al