In-situ Carbon and CH4 Flux and Meteorology at EC Towers, Atqasuk, Barrow, Ivotuk, Alaska, 2011-2015

Oechel, Walter C.; Verfaillie, Joseph G.; Vourlitis George; Zulueta, Rommel C.

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.

Study Sites

Atqasuk (ATQ) coordinates: 70.470, -157.409
Barrow (BRW) coordinates: 71.323, -156.597
Ivotuk (IVO) coordinates: 68.486, -155.748


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.

This dataset is openly shared, without restriction, in accordance with the EOSDIS Data Use Policy. See the ORNLDAAC Data Use and Citation Policy for more information.



Metadata Access

DCAT in RDF/XML-Format

DCAT in Turtle-Format

DCAT in JSON-LD-Format

APGC Dataset Metadata in JSON-Format

Data and Resources

Additional Info

Field Value
Identifier DOI:10.3334/ORNLDAAC/1424
Project(s) NASA CARVE Carbon in Arctic Reservoirs Vulnerability Experiment, NASA ABoVE Arctic - Boreal Vulnerability Experiment
Institute Department of Biology, San Diego State University, San Diego, California, USA
Publication Date 2016-12-12
Version 1.0
Product ground in situ flux and meteorological data
Sensor eddy covariance tower
  1. User Guide as HTML and PDF
  2. 14 CSV data files, per tower, per year
Variables [Units]
  1. BP: Barometric pressure [mbar/10]
  2. CH4_Flux_7700: CH4 flux [umol m-2 s-1]
  3. CH4_Flux_gf_7700: Gap-filled CH4 flux [umol m-2 s-1]
  4. CH4_q_7700: Quality flag
  5. CH4_Flux_LGR: CH4 flux [umol m-2 s-1]
  6. CH4_Flux_gf_LGR: Gap-filled CH4 flux [umol m-2 s-1]
  7. CH4_q_LGR: Quality flag
  8. --> This is only an extract from the variables. See the "User Guide" for all 84 variables.
Region Alaska
Spatial Reference EPSG:4326 WGS 84
Spatial Resolution
Spatial Coverage Latitude 68.49 to 71.32, Longitude -157.41 to -155.75
Temporal Coverage 2011-05-30 to 2016-01-07
Temporal Resolution half-hourly
Format CSV
Is Supplement To
Related to

Dataset extent

Map tiles and data by OpenStreetMap, under CC BY SA.