ACT-America: L1 Raw, Uncalibrated In-Situ CO2, CO, and CH4 Mole Fractions from Towers

Description

This dataset provides Level 1 (L1) in situ atmospheric carbon dioxide (CO2), carbon monoxide (CO), and methane (CH4) concentrations as measured on a network of instrumented communications towers across the central and eastern USA operated by the Atmospheric Carbon and Transport-America (ACT-America) project. There were 11 towers instrumented with cavity ring-down spectrometers (CRDS; Picarro Inc.) with measurements beginning in January 2015 and continuing to October 2019. The measurement period varied by tower site. The Picarro analyzers continuously measured total CH4, isotopic ratio of CH4, CO2, CO, and other greenhouse gas concentrations. Not all species were measured at all sites. Complete tower location, elevation, instrument height, and date/time information are also provided. Determination of greenhouse gas fluxes and uncertainty bounds is essential for the evaluation of the effectiveness of mitigation strategies. These L1 data are raw instrument outputs from the Picarro instruments. A Level 2 (L2) product derived from this L1 data is available and generally would be the preferred data for most use cases.

Resources

Name Format Description Link
21 Search results for publications that cite this dataset by its DOI. https://scholar.google.com/scholar?q=10.3334%2FORNLDAAC%2F1798
21 Data set Landing Page DOI URL https://doi.org/10.3334/ORNLDAAC/1798
21 ACT-America Campaign Site https://actamerica.ornl.gov
22 The communication tower at the Wessington, South Dakota site. This site was instrumented from January of 2017 to September of 2019. https://daac.ornl.gov/ACTAMERICA/guides/Insitu_Tower_Greenhouse_Gas_Fig1.jpg
21 ACT-America: L1 Raw, Uncalibrated In-Situ CO2, CO, and CH4 Mole Fractions from Towers: ACT_GCI_Install_Decommission_dates.xlsx https://data.ornldaac.earthdata.nasa.gov/public/actamerica/Insitu_Tower_Greenhouse_Gas/comp/ACT_GCI_Install_Decommission_dates.xlsx
33 ACT-America: L1 Raw, Uncalibrated In-Situ CO2, CO, and CH4 Mole Fractions from Towers: Insitu_Tower_Greenhouse_Gas.pdf https://data.ornldaac.earthdata.nasa.gov/public/actamerica/Insitu_Tower_Greenhouse_Gas/comp/Insitu_Tower_Greenhouse_Gas.pdf
21 This link allows direct data access via Earthdata login https://daac.ornl.gov/actamerica/Insitu_Tower_Greenhouse_Gas/
21 ORNL DAAC Data Set Documentation https://daac.ornl.gov/ACTAMERICA/guides/Insitu_Tower_Greenhouse_Gas.html
33 ACT-America: L1 Raw, Uncalibrated In-Situ CO2, CO, and CH4 Mole Fractions from Towers: datasheet-g2301-crds-analyzer-co2-ch4-h2o-air-oct15.pdf https://data.ornldaac.earthdata.nasa.gov/public/actamerica/Insitu_Tower_Greenhouse_Gas/comp/datasheet-g2301-crds-analyzer-co2-ch4-h2o-air-oct15.pdf
21 USE SERVICE API https://opendap.earthdata.nasa.gov/
21 ACT-America: L1 Raw, Uncalibrated In-Situ CO2, CO, and CH4 Mole Fractions from Towers: Tank_log_raw_data.xlsx https://data.ornldaac.earthdata.nasa.gov/public/actamerica/Insitu_Tower_Greenhouse_Gas/comp/Tank_log_raw_data.xlsx
33 ACT-America: L1 Raw, Uncalibrated In-Situ CO2, CO, and CH4 Mole Fractions from Towers: G2301-m+Manual+rev+2-11-11.pdf https://data.ornldaac.earthdata.nasa.gov/public/actamerica/Insitu_Tower_Greenhouse_Gas/comp/G2301-m+Manual+rev+2-11-11.pdf

Tags

  • atmosphere
  • atmospheric-chemistry
  • earth-science

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