Data provided by National Institute of Standards and Technology
March 2025 Update. Here we provide hourly observations of atmospheric carbon dioxide (CO2), methane (CH4), and (for a few sites) carbon monoxide (CO) from tower-based sites in the NIST Northeast Corridor network. Each *.tgz (tar/gzip) archive contains data files for a given site location, named by its 3-letter code. To extract on a unix platform, use "tar -xvzf <filename>". Data files within the <site>-1-hr-CSV.tgz archives are comma delimited (CSV) 1-hour averages; data files within the <site>-1-hr-NC.tgz archives are 1-hour averages in NetCDF format; data files within the <site>-1-min-CSV.tgz are CSV files with 1-minute averages (there is no NetCDF version for 1-minute data). Site locations, heights, and other information are in a separate ascii (CSV) file (NEC_sites.csv), and also within each data file (for the 1-hour averages files). Data in this archive is for January 1 2015-January 31 2025. ASCII Readme files (Readme_v20250319.txt and Readme_1minfiles_v20250319.txt) contain file information and an Updates_v20250319.pdf file that includes additional information on updates. Note about calibrations: CO2 data are reported on the NOAA/WMO X2019 calibration scale. CH4 data are reported on the NOAA/WMO X2004A calibration scale; CO data, where available, are reported on the NOAA/WMO X2014 scale. Note that previous archives of this data reported CO2 on the X2007 scale. This data is being freely distributed for research, academic and related non-commercial purposes consistent with NIST's mandate to further the science and the promulgation of appropriate standards. Current update: March 19, 2025.
About this Dataset
Updated: 2026-06-19
Metadata Last Updated:
2025-03-19 00:00:00
Date Created:
N/A
Data Provided by:
Dataset Owner:
N/A
| Title | Observations of carbon dioxide (CO2), methane (CH4), and carbon monoxide (CO) mole fractions from the NIST Northeast Corridor urban testbed |
|---|---|
| Description | March 2025 Update. Here we provide hourly observations of atmospheric carbon dioxide (CO2), methane (CH4), and (for a few sites) carbon monoxide (CO) from tower-based sites in the NIST Northeast Corridor network. Each *.tgz (tar/gzip) archive contains data files for a given site location, named by its 3-letter code. To extract on a unix platform, use "tar -xvzf <filename>". Data files within the <site>-1-hr-CSV.tgz archives are comma delimited (CSV) 1-hour averages; data files within the <site>-1-hr-NC.tgz archives are 1-hour averages in NetCDF format; data files within the <site>-1-min-CSV.tgz are CSV files with 1-minute averages (there is no NetCDF version for 1-minute data). Site locations, heights, and other information are in a separate ascii (CSV) file (NEC_sites.csv), and also within each data file (for the 1-hour averages files). Data in this archive is for January 1 2015-January 31 2025. ASCII Readme files (Readme_v20250319.txt and Readme_1minfiles_v20250319.txt) contain file information and an Updates_v20250319.pdf file that includes additional information on updates. Note about calibrations: CO2 data are reported on the NOAA/WMO X2019 calibration scale. CH4 data are reported on the NOAA/WMO X2004A calibration scale; CO data, where available, are reported on the NOAA/WMO X2014 scale. Note that previous archives of this data reported CO2 on the X2007 scale. This data is being freely distributed for research, academic and related non-commercial purposes consistent with NIST's mandate to further the science and the promulgation of appropriate standards. Current update: March 19, 2025. |
| Modified | 2025-03-19 00:00:00 |
| Publisher Name | National Institute of Standards and Technology |
| Contact | mailto:[email protected] |
| Keywords | Greenhouse gas measurements , emission inventories , urban greenhouse gas domes , atmospheric concentration measurements |
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"title": "Observations of carbon dioxide (CO2), methane (CH4), and carbon monoxide (CO) mole fractions from the NIST Northeast Corridor urban testbed",
"description": "March 2025 Update. Here we provide hourly observations of atmospheric carbon dioxide (CO2), methane (CH4), and (for a few sites) carbon monoxide (CO) from tower-based sites in the NIST Northeast Corridor network. Each *.tgz (tar\/gzip) archive contains data files for a given site location, named by its 3-letter code. To extract on a unix platform, use \"tar -xvzf <filename>\". Data files within the <site>-1-hr-CSV.tgz archives are comma delimited (CSV) 1-hour averages; data files within the <site>-1-hr-NC.tgz archives are 1-hour averages in NetCDF format; data files within the <site>-1-min-CSV.tgz are CSV files with 1-minute averages (there is no NetCDF version for 1-minute data). Site locations, heights, and other information are in a separate ascii (CSV) file (NEC_sites.csv), and also within each data file (for the 1-hour averages files). Data in this archive is for January 1 2015-January 31 2025. ASCII Readme files (Readme_v20250319.txt and Readme_1minfiles_v20250319.txt) contain file information and an Updates_v20250319.pdf file that includes additional information on updates. Note about calibrations: CO2 data are reported on the NOAA\/WMO X2019 calibration scale. CH4 data are reported on the NOAA\/WMO X2004A calibration scale; CO data, where available, are reported on the NOAA\/WMO X2014 scale. Note that previous archives of this data reported CO2 on the X2007 scale. This data is being freely distributed for research, academic and related non-commercial purposes consistent with NIST's mandate to further the science and the promulgation of appropriate standards. Current update: March 19, 2025.",
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"emission inventories",
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]
}
