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
5 https://search.earthdata.nasa.gov%2Fsearch%3Fq%3DInsitu_Tower_Greenhouse_Gas_1798%26ac%3Dtrue
5 https://daac.ornl.gov%2FACTAMERICA%2Fguides%2FInsitu_Tower_Greenhouse_Gas.html
5 https://doi.org%2F10.3334%2FORNLDAAC%2F1798
5 https://opendap.earthdata.nasa.gov%2F
5 https://daac.ornl.gov%2FACTAMERICA%2Fguides%2FInsitu_Tower_Greenhouse_Gas_Fig1.jpg
5 https://actamerica.ornl.gov%2F
5 https://data.ornldaac.earthdata.nasa.gov%2Fpublic%2Factamerica%2FInsitu_Tower_Greenhouse_Gas%2Fcomp%2Fdatasheet-g2301-crds-analyzer-co2-ch4-h2o-air-oct15.pdf
5 https://data.ornldaac.earthdata.nasa.gov%2Fpublic%2Factamerica%2FInsitu_Tower_Greenhouse_Gas%2Fcomp%2FTank_log_raw_data.xlsx
5 https://data.ornldaac.earthdata.nasa.gov%2Fpublic%2Factamerica%2FInsitu_Tower_Greenhouse_Gas%2Fcomp%2FInsitu_Tower_Greenhouse_Gas.pdf
5 https://data.ornldaac.earthdata.nasa.gov%2Fpublic%2Factamerica%2FInsitu_Tower_Greenhouse_Gas%2Fcomp%2FACT_GCI_Install_Decommission_dates.xlsx
5 https://data.ornldaac.earthdata.nasa.gov%2Fpublic%2Factamerica%2FInsitu_Tower_Greenhouse_Gas%2Fcomp%2FG2301-m%2BManual%2Brev%2B2-11-11.pdf
5 https://search.earthdata.nasa.gov/search?q=Insitu_Tower_Greenhouse_Gas_1798&ac=true
21 https://doi.org/10.3334/ORNLDAAC/1798
5 https://opendap.earthdata.nasa.gov/
22 Insitu_Tower_Greenhouse_Gas_Fig1.jpg https://daac.ornl.gov/ACTAMERICA/guides/Insitu_Tower_Greenhouse_Gas_Fig1.jpg
5 https://actamerica.ornl.gov/
53 Tank_log_raw_data.xlsx https://data.ornldaac.earthdata.nasa.gov/public/actamerica/Insitu_Tower_Greenhouse_Gas/comp/Tank_log_raw_data.xlsx
33 Insitu_Tower_Greenhouse_Gas.pdf https://data.ornldaac.earthdata.nasa.gov/public/actamerica/Insitu_Tower_Greenhouse_Gas/comp/Insitu_Tower_Greenhouse_Gas.pdf
33 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
33 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
53 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
5 https://search.earthdata.nasa.gov/search?q=Insitu_Tower_Greenhouse_Gas_1798&ac=true
21 https://doi.org/10.3334/ORNLDAAC/1798
5 https://opendap.earthdata.nasa.gov/
22 Insitu_Tower_Greenhouse_Gas_Fig1.jpg https://daac.ornl.gov/ACTAMERICA/guides/Insitu_Tower_Greenhouse_Gas_Fig1.jpg
5 https://actamerica.ornl.gov/
33 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
53 Tank_log_raw_data.xlsx https://data.ornldaac.earthdata.nasa.gov/public/actamerica/Insitu_Tower_Greenhouse_Gas/comp/Tank_log_raw_data.xlsx
33 Insitu_Tower_Greenhouse_Gas.pdf https://data.ornldaac.earthdata.nasa.gov/public/actamerica/Insitu_Tower_Greenhouse_Gas/comp/Insitu_Tower_Greenhouse_Gas.pdf
53 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 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
0 The metadata's original source. https://cmr.earthdata.nasa.gov/search/concepts/C2706327711-ORNL_CLOUD.iso19115

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  • nasa
  • remote-sensing
  • earth-science

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