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ABoVE

Monitoring Permafrost with P-Band SAR

Active layer thickness and uncertainty.

Active layer thickness with uncertainty for a flight swath over the northern section of Alaska's Dalton Highway in summer 2015.

NASA's ABoVE airborne campaign provides estimates of active layer thickness and soil properties derived from the AirMOSS instrument.

Uncertainty in Arctic Carbon Stocks and Fluxes

Uncertainty of carbon stock across the ABoVE domain.

Uncertainty in soil carbon stocks and gross primary productivity across the ABoVE domain.

Work from NASA's ABoVE compared model outputs to estimate the uncertainty in six components of the carbon cycle across Alaska and Canada.

Remote Cameras Measure Snow Conditions

Snow depth measurement

A remote camera image showing the snow stake at Plot 15 of the Jaeger Mesa/Rambler Mine study area.

Automated digital cameras provide a record of snow conditions in Alaska's Dall sheep habitat.

Does Boreal Wildfire Release "Old" Carbon?

Radiocarbon concentration over time according to soil depth and stand age

Radiocarbon concentration (delta14C) in the atmosphere over time, showing the bomb peak in 1966 (red dotted line) and theoretical positions of delta14C of soil depth increments (points).

Researchers with NASA's ABoVE field campaign measured soil and forest stand age at burned sites in Canada's Northwest Territories.

AirSWOT Ka-band Radar from ABoVE

AirSWOT radar products from ABoVE

Example of AirSWOT radar products in ABoVE Projection at 3.6 m resolution, for a flight over the ABoVE C grid Ch065v034. Left: Shape for backscatter image. Middle: Backscatter magnitude shows bright reflection in the near range and no returns, yielding regions of no data, in the far range. Right: Derived elevation product.

The ABoVE project has released data from AirSWOT flights in Summer 2017 collected over Alaska and Canada.

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