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Atmospheric Concentrations of Halocarbons and Hydrocarbons

Map showing CFC-11 mixing ratio

Mixing ratio of CFC-11 measured by Whole Air Sampler (WAS) during ATom-4 flights in April-May 2018.

The UC-Irvine Whole Air Sampler (WAS) instrument was used during the Atmospheric Tomography (ATom) mission.

Carbon Fluxes From US Coastal Wetlands

Estimated CO2e fluxes and confidence interval ranges for the Mississippi River outlet in Louisiana, United States. This area contains palustrine and estuarine wetlands, and includes stable wetlands, wetland gains and loss events from 2006 to 2011. A: Total flux from 2006 to 2011. B. Uncertainty, as represented by confidence interval range (0.975 - 0.025 quantile distributions of the results of the Monte Carlo Analysis). C-E. The relative contributions of soil, biomass, and methane to the total flux (A).

A new dataset provides maps of surface elevation, land cover, biomass, and estimated coastal wetland carbon fluxes.

Mapping Methane Emissions Across California

Map of California's methane emissions.

Vista-CA provides locations of methane (CH4) emitting facilities and infrastructure in the State of California. In this figure, the distribution of digesters, feed lots, and dairies across the San Francisco Bay Area and Central Valley are shown.

The Vista-CA dataset provides locations of potential methane (CH4) emitting facilities and infrastructure across the state of California.

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.

Methane Point-Source Emissions

 AVIRIS-NG Flight Lines

Example of AVIRIS-NG flight lines over the southern San Joaquin Valley, Kern County, CA, in Fall 2016 and the Vista-CA potential methane emitting facilities and infrastructure for the three primary sectors (energy, agriculture, and waste).

Maps of methane plumes were derived from Next-Generation Airborne Visible Infrared Imaging Spectrometer (AVIRIS-NG) flights over California.

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