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CARVE: L1 In-situ Carbon and CH4 Flux and Meteorology at EC Towers, Alaska, 2011-2015

Data Set Overview

Data setCARVE: L1 In-situ Carbon and CH4 Flux and Meteorology at EC Towers, Alaska, 2011-2015
Release date2016-12-12
ProjectCarbon in Arctic Reservoirs Vulnerability Experiment
Time Period2011-05-30 to 2016-01-07


This data set provides ground in situ flux and meteorological science data from fixed instruments at three eddy covariance tower sites located in the Alaskan Arctic tundra. Real and gap-filled observations of carbon dioxide, methane, water vapor, and latent energy flux in addition to standard meteorological and environmental variables are reported at half-hourly intervals between 2011 and 2015 for sites at Atqasuk, Barrow, and Ivotuk, Alaska. The three sites form a 300-km north-south transect on the North Slope of Alaska, each site representing distinct Arctic vegetation communities. These tower measurements create a long-term record of one of the largest, most volatile carbon stocks on the planet. Observations from these towers are being used to determine the seasonal and inter-annual patterns of CO2 and CH4 flux, and their relationship to changes in environmental factors.


Data set reference document


Oechel, W., J. Verfaillie, G. Vourlitis, and R. Zulueta. 2016. CARVE: L1 In-situ Carbon and CH4 Flux and Meteorology at EC Towers, Alaska, 2011-2015. ORNL DAAC, Oak Ridge, Tennessee, USA.
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Carbon in Arctic Reservoirs Vulnerability Experiment: The Carbon in Arctic Reservoirs Vulnerability Experiment (CARVE) is a NASA Earth System Science Pathfinder Mission. From 2011 to 2015, CARVE collected airborne measurements of atmospheric carbon dioxide, methane, and carbon monoxide and relevant land surface parameters in the Alaskan Arctic. Continuous ground-based measurements provide temporal and regional context as well as calibration for CARVE airborne measurements. CARVE provides an integrated set of greenhouse gas data that provides experimental insights into Arctic carbon cycling.

Project data set list for Carbon in Arctic Reservoirs Vulnerability Experiment.

Companion Files

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  • CARVE_L1_Ground_Flux.pdf
  • CARVE_L1_Ground_Flux_Fig1.png

Data Files

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Data File (Granule)File SizeDatesLatitudeLongitude
SDSU_ATQ_2011.csv 501.3 KB 2011-07-30 - 2011-09-28 70.47N157.41W
SDSU_ATQ_2012.csv 1.8 MB 2012-01-01 - 2012-12-30 70.47N157.41W
SDSU_ATQ_2013.csv 3.4 MB 2013-01-01 - 2013-12-31 70.47N157.41W
SDSU_ATQ_2014.csv 5.9 MB 2014-01-01 - 2014-12-31 70.47N157.41W
SDSU_ATQ_2015.csv 6.0 MB 2015-01-01 - 2015-12-31 70.47N157.41W
SDSU_BRW_2011.csv 1.7 MB 2011-05-30 - 2011-12-31 71.32N156.63W
SDSU_BRW_2012.csv 2.6 MB 2012-01-01 - 2012-12-29 71.32N156.63W
SDSU_BRW_2013.csv 3.5 MB 2013-01-01 - 2013-12-31 71.32N156.63W
SDSU_BRW_2014.csv 6.9 MB 2014-01-01 - 2014-12-31 71.32N156.63W
SDSU_BRW_2015.csv 7.2 MB 2015-01-01 - 2016-01-07 71.32N156.63W
SDSU_IVO_2012.csv 454.2 KB 2012-08-09 - 2012-10-02 68.49N155.75W
SDSU_IVO_2013.csv 3.9 MB 2013-04-08 - 2013-12-31 68.49N155.75W
SDSU_IVO_2014.csv 8.8 MB 2014-01-01 - 2014-12-31 68.49N155.75W
SDSU_IVO_2015.csv 9.2 MB 2015-01-01 - 2015-12-31 68.49N155.75W

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Files related to this data set have been downloaded on 8 occasions since 2016-12-19, totaling 100 files.