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    • Methane and Ethane Observations for Boston, MA, 2012-2020

    Metadata Updated: December 7, 2023

    This dataset provides the hourly average of continuous atmospheric measurements of methane (CH4) from two urban sites and three boundary sites in and around Boston, Massachusetts, U.S., from September 2012-May 2020, measured with Picarro cavity ring down spectrometers (CRDS). Five-minute average atmospheric measurements of ethane (C2H6) and methane at Copley Square in Boston, MA, are also provided, with ethane measured with a laser spectrometer and methane measured with a Picarro CRDS. Background CH4 concentrations for the urban sites were determined using Hybrid Single-Particle Lagrangian Integrated Trajectory (HYSPLIT) model trajectories at the boundary of the study region based on measurements at three boundary sites and wind direction from the North American Mesoscale Forecast System (NAM) 12-kilometer meteorology.

    Access & Use Information

    Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

    Downloads & Resources

    Dates

    Metadata Created Date December 1, 2022
    Metadata Updated Date December 7, 2023

    Metadata Source

    Harvested from NASA Data.json

    Other Data Resources

    Graphic Preview

    Map of measurement stations in the Boston network. The black line demarcates the 90 km radius circle in which emissions were optimized and the dashed line bounds the urban domain for study. The blue shading represents the number of housing units with natural gas (NG) per square kilometer. The red and blue contour encloses 50% of the average footprint (sensitivity area) initiated at the COP and BU sites, respectively. Source: Sargent et al. (2021)

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date December 1, 2022
    Metadata Updated Date December 7, 2023
    Publisher ORNL_DAAC
    Maintainer
    Identifier C2345793484-ORNL_CLOUD
    Data First Published 2022-03-15
    Language en-US
    Data Last Modified 2023-06-12
    Category CMS, geospatial
    Public Access Level public
    Bureau Code 026:00
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Metadata Catalog ID https://data.nasa.gov/data.json
    Schema Version https://project-open-data.cio.gov/v1.1/schema
    Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
    Citation Sargent, M., S.C. Wofsy, C. Floerchinger, J. Buddy, and E.W. Gottlieb. 2022. Methane and Ethane Observations for Boston, MA, 2012-2020. ORNL DAAC, Oak Ridge, Tennessee, USA. https://doi.org/10.3334/ORNLDAAC/1982
    Graphic Preview Description Map of measurement stations in the Boston network. The black line demarcates the 90 km radius circle in which emissions were optimized and the dashed line bounds the urban domain for study. The blue shading represents the number of housing units with natural gas (NG) per square kilometer. The red and blue contour encloses 50% of the average footprint (sensitivity area) initiated at the COP and BU sites, respectively. Source: Sargent et al. (2021)
    Graphic Preview File https://daac.ornl.gov/CMS/guides/Methane_Ethane_MA_NH_Fig1.png
    Harvest Object Id 64d246a7-0edf-4ac0-b5bc-b539441a50d7
    Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
    Harvest Source Title NASA Data.json
    Homepage URL https://doi.org/10.3334/ORNLDAAC/1982
    Metadata Type geospatial
    Old Spatial -72.4 41.5 -69.8 43.71
    Program Code 026:001
    Source Datajson Identifier True
    Source Hash 616d7bf2c97d258b705a8afa6fcbf544f7fd9ce51510730b1100cc41044b3ffd
    Source Schema Version 1.1
    Spatial
    Temporal 2012-08-01T00:00:00Z/2020-05-31T23:59:59Z

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