ABoVE: Year-Round Soil CO2 Efflux in Alaskan Ecosystems, Version 2.1 ... : Arctic-Boreal Vulnerability Experiment (ABoVE) ...

• Main Authors: Minions, C., Natali, S., Watts, J.D., Ludwig, S., Risk, D.
• Format: Article in Journal/Newspaper
• Language: English
• Published: ORNL Distributed Active Archive Center 2020
• Subjects: ATMOSPHERE, ATMOSPHERIC CHEMISTRY, CARBON AND HYDROCARBON COMPOUNDS, ATMOSPHERIC CARBON DIOXIDE; LAND SURFACE, SOILS, SOIL RESPIRATION,; CLIMATE INDICATORS, CARBON FLUX, ,; FIELD SURVEYS, CARBON ANALYZERS; FIELD SURVEYS, SOIL TEMPERATURE PROBE; Soil Respiration Stations; Boreal sites; Tundra sites; Soil Carbon; Forced Diffusion Chambers; CO2 Flux; Arctic; Tundra; Alaska
• Online Access: https://dx.doi.org/10.3334/ornldaac/1762; https://daac.ornl.gov/cgi-bin/dsviewer.pl?ds_id=1762

This dataset provides soil-surface carbon dioxide (CO2) efflux derived from measurements of soil respiration with forced diffusion (FD) chambers. Soil Respiration Stations (SRS) were installed at 11 boreal and tundra sites along a broad south-to-north transect starting from near Fairbanks in interior Alaska and extending to Atqasuk in northern Alaska. Each SRS measures soil respiration and ambient atmospheric CO2 concentrations with a forced diffusion (FD) chamber to derive soil CO2 flux. The SRS also measures soil CO2 concentrations and temperatures using instrumented chambers buried at 5, 10, and 15 cm depths in the soil profile. At the highest measurement frequency, data are collected hourly, and during the lowest winter frequency, every 48 hours. The data include flux values and running median filtered values from the two or three FD chambers at each site. Soil CO2 and temperature profile data (beginning June 2017) were collected beginning 2016-08-18 through 2022-07-28. As of this publication, sampling ...