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Year-round Soil CO2 Measurements in Alaska

Sites of forced diffusion chamber deployment

Forced diffusion chambers were established at the seven sites along a south-to-north transect from near Fairbanks to Toolik Lake, Alaska.

ABoVE: Year-round Soil CO2 Efflux in Alaskan Ecosystems

A new dataset from the Arctic-Boreal Vulnerability Experiment (ABoVE) provides soil surface CO2 efflux derived from measurements of soil respiration using forced diffusion (FD) chambers. Measurement systems were established at seven selected sites within diverse ecosystems along a S-N transect from near Fairbanks in interior Alaska to Toolik Lake in northern Alaska. Flux was calculated using the two CO2 values and a chamber-specific precalibrated constant. Three FD chambers were deployed at each site. Data have been collected since August 2016 and sampling is continuing at active sites.

ABoVE will link field-based, process-level studies with geospatial data products derived from airborne and satellite sensors. See all data from ABoVE.

Data Citation: Minions, C., S. Natali, S. Ludwig, and J. Watts. 2018. ABoVE: Year-round Soil CO2 Efflux in Alaskan Ecosystems. ORNL DAAC, Oak Ridge, Tennessee, USA. https://doi.org/10.3334/ORNLDAAC/1620
Data Center: ORNL DAAC
Sponsor: EOSDIS