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Tropical Forest Biomass in Gabon

Aboveground biomass.

Aboveground biomass mapped at 0.25 ha resolution for the Mondah study site in Gabon, West Africa.

The AfriSAR campaign produced maps of aboveground biomass for four forested sites in Gabon based on field data and LiDAR scans.

Temporal Dynamics of Lake Area in the Arctic

Four ABoVE study sites.

Near-daily CubeSat imagery was collected within four large regions across the ABoVE study area. Timeseries of lake area were derived from the CubeSat imagery for more than 80,000 lakes in these regions.

Near-daily CubeSat imagery provides information on the seasonal dynamics of more than 80,000 lakes.

Mapping Global Mangrove Forests

Mangrove cover and height.

Heights of mangrove forests along the northern coast of Borneo (countries Brunei and Malaysia) reach 39 meters tall. Mangrove cover is illustrated in orange, where darker orange represents taller canopies.

Maps of the global distribution and biomass of mangrove forests are available for 116 countries.

Greenhouse Gases from Arctic-CAP

Monitoring carbon dynamics during the 2017 growing season.

Arctic-CAP flight lines (orange) sampled Arctic and boreal regions of Alaska and Canada. Pins mark the locations of vertical profiles that were repeatedly acquired during the 2017 growing season.

Atmospheric carbon and methane concentrations were measured during the 2017 Arctic Carbon Aircraft Profile (Arctic-CAP) flights throughout Alaska and western Canada.

Daymet Data Now Available in AppEEARS

the LP DAAC logo

The Land Processes DAAC distributes NASA Earth Observing System data. They developed the AppEEARS tool to provide access to a wide range of data from instruments including MODIS, VIIRS, SMAP, and now Daymet.

Daymet Version 3 daily weather data for North America is now available through the AppEEARS subsetting tool from NASA's Land Processes DAAC.

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.

Mechanistic Soil Nitrogen Module for CMAQ

Soil nitrous oxide emissions.

Soil nitrous oxide emissions on a monthly average basis for July 2011 estimated with the mechanistic scheme.

A new model dataset improves the timing and spatial distribution of estimates of soil nitrogen emissions.

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.

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