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Daily Maps of Land Surface Thaw State

Surface thaw map

Surface thaw map for Alaska and Northwest Canada on April 25, 2003, derived from the Advanced Microwave Scanning Radiometer (AMSR-E).

A new dataset from NASA's CARVE mission provides the daily thaw state of the Alaskan land surface from 2003 - 2015.

Climate and Dall Sheep Populations

Wrangell-St. Elias National Park & Preserve, Alaska, a study location for the ABoVE field campaign

A herd of Dall sheep ewes and lambs in Wrangell-St. Elias National Park & Preserve, Alaska, a study location for the ABoVE field campaign. (Photo credit: Laura Prugh)

A new dataset from NASA's ABoVE campaign estimates effects of climate on Dall sheep populations throughout Alaska and northwestern Canada.

Forest Data from the AfriSAR Mission

AfriSAR project researchers in Gabon

Researchers collecting field data in Mondah Forest, Gabon, for the AfriSAR project. Photo credit: Carla Thomas, NASA, 2016

Tree data, canopy cover, and vertical profile metrics from forests in Gabon have been published.

Column-average CO2 Concentrations from ACT-America

ACT-America column-average carbon dioxide concentrations

Column-average CO2 measured during the first 20 minutes of flight off the coast of New Jersey on July 11, 2016, for the ACT-America mission.

A new dataset provides remotely-sensed column-average carbon dioxide concentrations measured over the Eastern US.

Maximum NDVI from the ABoVE Campaign

Long-term maximum NDVI measured 2002-2017

Long-term maximum NDVI for the ABoVE study area covering the years 2002-2017.

Annual maximum NDVI estimates from 2002-2017 are available for most of Alaska and the Yukon Territory.

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