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CARVE

CO2, CH4, and other gases sampled by CARVE

Submitted by ORNL DAAC Staff on 2016-12-14
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Flask sampling system for aircraft measurements. Left: Programmable Flash Package (PFP) containing 12 flasks. Right: Programmable Compressor Package (PCP) containing pumps for pressurizing the flasks. (Image courtesy: http://www.esrl.noaa.gov/gmd/ccgg/aircraft/sampling.html)

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The CARVE campaign analyzed whole-air samples from aircraft and a 32m tower above Alaska.

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Cold-season Methane Emissions in Alaska

Submitted by ORNL DAAC Staff on 2016-12-01
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Frost clings to an eddy covariance tower in Barrow, Alaska. The sensors measure methane emissions year round and are equipped with deicers to prevent them from malfunctioning in the Arctic's frigid temperatures. The tower also measures other meteorological variables, including air temperature, humidity, soil temperature, and soil moisture. (Courtesy S. Losacco)

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Scientists with CARVE track methane emission in Alaska all year round.

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Capturing black carbon aerosol emissions in Alaska

Submitted by ORNL DAAC Staff on 2016-10-14
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Figure (a) Map of the CARVE aerosol sampling stations in Alaska, (b) daily sum of fire radiative power from MODIS active fires in 2013 Alaska (from Mouteva et al 2015).

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Carbon aerosol data was collected by NASA's Carbon in Arctic Reservoirs Vulnerability Experiment (CARVE) in summer 2013.

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Year-round greenhouse gas measurements from the CARVE tower, Alaska

Submitted by ORNL DAAC Staff on 2016-05-12
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Location of the CARVE tower (red) and 50% and 80% surface influence contours for the average WRF-STILT influence functions (from Karion et al 2016).

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A new data set investigates the atmospheric concentrations of CO2 and CH4 from 2012-2014 in boreal Alaska.

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