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Sectored Annual and Hourly Estimates of CO2 from 2010-2015

Submitted by ORNL DAAC Staff on 2020-10-05
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Vulcan v3.0 FFCO2 annual total emissions (tC/km2/year) for the United States in 2011 at a 1 km resolution.  Source: Figure 3(a) in Gurney et al., 2020.

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Two new datasets provide high-resolution estimates of carbon dioxide sector emissions from fossil fuels and cement production for the USA.

Arctic Whole Air Samples

Submitted by ORNL DAAC Staff on 2020-01-30
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Arctic-CAP flights consisted of vertical profile maneuvers from near the surface to 6 km altitude around the ABoVE domain each month. Profiles were flown at each of the 25 locations listed across the top of this figure.

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Atmospheric gas concentrations collected during the Arctic Carbon Aircraft Profile (Arctic-CAP) campaigns are now available.

Historical and Future Leaching from the Mississippi River Basin

Submitted by ORNL DAAC Staff on 2020-01-20
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Spatial distribution of mean dissolved inorganic carbon (DIC) leaching (g c/m2/yr) in the 2090s estimated by S(ALL) simulation experiment (including future climate, elevated CO2, and land use changes). Climate change scenarios were derived from three climate models named CCSM3 (panels a and b), ECHAM (c and d), and CCCMA (e and f) under high (A2) and low (B1) emission scenarios, respectively.

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New data from the Carbon Monitoring System (CMS) offers insights into how environmental factors affect the dynamics of leaching.

Greenhouse Gases from Arctic-CAP

Submitted by ORNL DAAC Staff on 2019-05-06
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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.

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

Merged Data from the Atmospheric Tomography Mission

Submitted by ORNL DAAC Staff on 2019-04-08
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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.

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