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atmosphere

Model-Derived CO2 Biogenic Fluxes

Gross Primary Productivity

Mean gross primary productivity (GPP) for the conterminous US and North America in grams of carbon per unit area per month.

Carbon fluxes and uncertainties are available from the Atmospheric Carbon and Transport - America (ACT-America) project.

Atmospheric Chemistry from the ATom Campaign

Map showing atmospheric CO2 measurements.

Measurements of atmospheric carbon dioxide concentration from flasks collected by the Medusa system during ATom-4 flights in 2018.

NASA's Atmospheric Tomography (ATom) campaign collected whole air samples and measurements of formaldehyde during round-the-world flights.

New Data from the Atmospheric Tomography (ATom) Mission

ATom mission logo

The Atmospheric Tomography (ATom) Mission is an Earth Venture Suborbital-2 mission to measure greenhouse gases and human-produced air pollution in remote areas.

Five new datasets from ATom provide measurements of greenhouse gases and human-produced air pollution from 2016 to 2018.

Planetary Boundary Layer Heights for Eastern USA

ACT-America Team.

The ACT-America team on the tarmac with the B-200 King Air and C-130 Hercules NASA aircraft in Shreveport, Louisiana.

Estimates of the height of the planetary boundary layer (PBL) are available from the Atmospheric Carbon and Transport - America (ACT-America) airborne campaign.

Atmospheric Photolytic Rates from ATom

Photolysis frequency (J-value).

An image of photolysis frequency (J-value) for J-O1D under cloudy conditions from the GSFC GMI model.

Atmospheric photolytic rates for ozone and nitrogen dioxide were estimated using nine global chemistry-climate or chemistry-transport models.

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