Swanson, David K.

18 items:

Vegetation sampling in the Arctic Inventory and Monitoring Network, 2013 Progress Report Categories: Data, Publication; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: M1-Flora
Three decades of landscape change in Alaska’s Arctic National Parks: Analysis of aerial photographs, c. 1980-2010 Categories: Data, Publication; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: MONITORING 5-PHYSICAL SCIENCE
Monitoring of retrogressive thaw slumps in the Arctic Network, 2012 Categories: Data, Publication; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: MONITORING 5-PHYSICAL SCIENCE
Satellite greenness data summary for the Arctic Inventory and Monitoring Network, 1990-2009 Normalized difference vegetation index (NDVI) derived from AVHRR and MODIS satellitesensors is summarized in five northern Alaskan National Park Service units dominated by arctictundra. NDVI is an index of vegetation productivity that is closely related to the warmth ofsummer growing seasons in the arctic. Mean NDVI for ecological sections (broad landscapescalemapping units) is highest for densely vegetated lowlands, lowest in sparsely vegetated highmountain areas, and intermediate in lowlands with significant area of lakes. NDVI during greenup(June) varies 20 to 40% between years, while peak NDVI and late-season NDVI vary 10 to20% between years. These short-term variations are closely linked to current-year variations... Categories: Data, Publication; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Monitoring 1-Changes in Plant and Animal Distribution: Flora
Ecological units of Wrangell-St. Elias National Park and Preserve, Alaska Categories: Data, Publication; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Adaptation Planning 1-Best Management Practices, Landscape Scale Conservation: Agency Management Plans, United States Federal Agencies

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