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Arctic

Tracking Permafrost with P-band SAR

AirMOSS Radar Swaths

AirMOSS radar swaths flown in 2014 and 2015 in Alaska. In situ soil moisture and temperature profile measurements were obtained at the CALM (Circumpolar Active Layer Monitoring) and the UAF GIPL (Geophysical Institute Permafrost Laboratory, University of Alaska Fairbanks) sites and used to validate AirMOSS data products.

Airborne Microwave Observatory of Subcanopy and Subsurface (AirMOSS) radar data from Alaska are used to derive estimates of active layer thickness. Data from flights in 2014 and 2015 are now available.

Vegetation Imagery from Toolik Lake, Alaska

Toolik plot photo.

A plot photo (#0656) taken at the largest study area "Toolik" at elevation 765.7 m. The small white object was included in many of the photos as a color reference. The photographer's boots are also often visible, in this photo they are to the lower left of the white object.

A new ABoVE dataset offers hundreds of ground-based vegetation photos which may serve as a reference for studies of climate and vegetation change in the area.

Winter Carbon Flux From Arctic & Boreal Soils

Soil CO2 flux estimates.

Mean daily soil CO2 flux in each month of the non-growing season (NGS) during the baseline period (2003-2018). Gridded estimates are provided at 25-km resolution for the pan-Arctic and Boreal permafrost region.

New data from the Arctic-Boreal Vulnerability Experiment (ABoVE) provide winter soil CO2 flux estimates for the pan-Arctic and Boreal regions.

Thirty+ Year Timeseries of Arctic Land Cover

Land Cover Classes.

Land cover (10-class product) for the year 2014 for ABoVE tile BH03V04. The pixel resolution is 30 m and a tile is 180 x 180 km.

Research from NASA's ABoVE project provides annual land cover classifications from 1984 to 2014 for Alaska and the Canadian Arctic.

Snow and Thaw Depth Near Fairbanks, AK

Farmer's Loop Transect 2.

Active layer thaw depth was recorded each year during the late summer from 2014 - 2018 at sites including the Farmer's Loop Transect 2 near Fairbanks. (Image Credit: Tom Douglas)

Two new datasets provide soil active layer thaw depth and end-of-season snow depth at sites near Fairbanks, Alaska.

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