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Field Measurements After Alaskan Wildfires

Submitted by ORNL DAAC Staff on 2019-03-04
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Photos from July 2017 field surveys near Tanana, Alaska, from left to right: unburned forest site; burned forest near the Spicer Creek Fire; high burn severity forest site.

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Researchers with NASA's ABoVE field campaign measured burn severity in spruce forests that burned in 2015 near Tanana, Alaska.

Vegetation Changes Along Alaskan Rivers

Submitted by ORNL DAAC Staff on 2019-01-07
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Riverbank erosion and vegetation colonization at the Yukon River 1 study area, located along the Middle Yukon River between Circle and Fort Yukon, Alaska, from 1985-2017.

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Research from NASA's ABoVE campaign provides a record of riverbank erosion and vegetation colonization along major Alaskan rivers from 1984 to 2017.

Climate and Productivity of Arctic Tundra

Submitted by ORNL DAAC Staff on 2019-01-03
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Arctic biweekly NDVI (green bars) and trend (grey bars) for full tundra for 1999-2015. Biweekly trends statistically significant at the 95% level or greater are marked with an asterisk on the x-axis. From Figure 9 (c) Bhatt et al. (2017) (see dataset documentation).

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NASA's ABoVE provides standardized data on potential climate drivers for productivity of Arctic tundra vegetation.

Mapping Surface Waters from ABoVE

Submitted by ORNL DAAC Staff on 2018-12-10
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Orthomosaic imagery taken from a Beechcraft Super King Air B200 aircraft traveling north of the Mackenzie River in the Dehcho Region of Canada.

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NASA's 2017 ABoVE airborne campaign provides high-resolution, georeferenced, three-band orthomosaics of digital imagery to validate maps of Arctic surface water extent.

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Climate and Dall Sheep Populations

Submitted by ORNL DAAC Staff on 2018-11-05
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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)

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

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