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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.

MODIS Collection 6 Phenology and Other Updates

MODIS pixel quality for Paradise, CA

Periodic fires near Paradise, California (in 2001, 2008, and 2018) observed from MODIS as recorded in the newly released MCD64A1 product: MODIS/Terra and Aqua Burned Area Monthly L3.

Several updates are now available for MODIS Land Products, including the addition of the Collection 6 phenology product.

Merged Data from the Atmospheric Tomography Mission

ATom flights

Generalized overview of ATom flights. During each of the four campaigns, ATom flights originated from California, flew south over the Pacific Ocean, then north to the western Arctic, southwest to New Zealand, east to Chile and the Atlantic Ocean, north to Greenland, and returned to California across North America. During flights, the aircraft continuously profiled the atmosphere from 0.2 to 12 km altitude.

The Atmospheric Tomography Mission (ATom) has released multi-instrument merged data from all four flight campaigns spanning from 2016 - 2018.

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