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    • Observations of CO2, CH4, and CO mole fractions from the NIST Northeast Corridor urban testbed

    Metadata Updated: September 30, 2025

    NOTE: please see the latest (March 2025) update at https://doi.org/10.18434/mds2-3765. Hourly observations of CO2 and CH4 from tower-based sites in the NIST Northeast Corridor network (currently 23, but more may be added in future updates); CO observations from one site. Data files are comma delimited (CSV). Measurements of each species may be from two or more different heights above ground. Site locations, heights, and other information is in a separate ascii (CSV) file (NEC_sites.csv). Data is currently reported for the years 2015-2019, with planned annual updates. An ASCII Readme file (NEC_Readme_10052020) is also posted, along with an Updates_10052020.txt file that includes information on updates. Current update: Nov 11, 2020. See also associated publication (Karion et al., Earth System Science Data, 2020): https://doi.org/10.5194/essd-12-699-2020

    Access & Use Information

    Public: This dataset is intended for public access and use. License: See this page for license information.

    Downloads & Resources

    References

    https://doi.org/10.5194/essd-2019-206
    https://doi.org/10.5194/essd-12-699-2020

    Dates

    Metadata Created Date November 12, 2020
    Metadata Updated Date September 30, 2025

    Metadata Source

    Harvested from Commerce Non Spatial Data.json Harvest Source

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date November 12, 2020
    Metadata Updated Date September 30, 2025
    Publisher National Institute of Standards and Technology
    Maintainer
    Identifier ark:/88434/mds2-2126
    Data First Published 2019-10-23
    Language en
    Data Last Modified 2020-11-11 00:00:00
    Category Environment:Greenhouse gas measurements
    Public Access Level public
    Bureau Code 006:55
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Schema Version https://project-open-data.cio.gov/v1.1/schema
    Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
    Harvest Object Id 1ccb0d27-02c9-4b06-aece-255a04b3dfea
    Harvest Source Id bce99b55-29c1-47be-b214-b8e71e9180b1
    Harvest Source Title Commerce Non Spatial Data.json Harvest Source
    Homepage URL https://data.nist.gov/od/id/mds2-2126
    License https://www.nist.gov/open/license
    Old Spatial -81,35,-70,44
    Program Code 006:047
    Related Documents https://doi.org/10.5194/essd-2019-206, https://doi.org/10.5194/essd-12-699-2020
    Source Datajson Identifier True
    Source Hash 2c6f853bcfa2a625b84ba1ee0b7b4884f573c9f620159cf2f34d044eecca418d
    Source Schema Version 1.1
    Spatial {"type": "Polygon", "coordinates": -81, 35, -81, 44, -70, 44, -70, 35, -81, 35}
    Temporal 2015-01-01/2019-12-31

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