{"@type": "dcat:Dataset", "accessLevel": "public", "accrualPeriodicity": "irregular", "bureauCode": ["006:55"], "contactPoint": {"fn": "Anna Karion", "hasEmail": "mailto:anna.karion@nist.gov"}, "description": "This dataset accompanies the publication below. Here we provide the results of the analysis, including gridded estimates of methane emissions for the Washington/Baltimore area at 0.01 degrees resolution and monthly from 2017 through 2021.  All files available for unrestricted public use with citation of this data set *except* the Observations_XX files.  Observations are for non-commercial use only, as they are purchased from a private data provider (AEM, Inc. via Earth Networks, Inc.).Methane Emissions Show Recent Decline but Strong Seasonality in Two US Northeastern CitiesAnna Karion, Subhomoy Ghosh, Israel Lopez-Coto, Kimberly Mueller, Sharon Gourdji, Joseph Pitt, and James WhetstoneEnvironmental Science & Technology 2023 57 (48), 19565-19574 DOI: 10.1021/acs.est.3c05050", "distribution": [{"description": "Activity based (bottom-up) methane emissions maps used as priors in analysis.", "downloadURL": "https://data.nist.gov/od/ds/mds2-3720/Priors.csv", "mediaType": "text/csv", "title": "Prior inventories used in analysis"}, {"description": "Coordinates and area of analysis domain grid corresponding to the emissions flux data.", "downloadURL": "https://data.nist.gov/od/ds/mds2-3720/Coords_Area.csv", "mediaType": "text/csv", "title": "Coordinates and area of analysis domain"}, {"description": "File containing observations used in analysis and some model output from ERA5-STILT", "downloadURL": "https://data.nist.gov/od/ds/mds2-3720/Observations_Merge_ERA5.csv", "mediaType": "text/csv", "title": "Observations file"}, {"description": "Observations and some merged model output for analysis generated with ERA5-STILT using the near field correction (NFC).", "downloadURL": "https://data.nist.gov/od/ds/mds2-3720/Observations_Merge_ERA5NFC.csv", "mediaType": "text/csv", "title": "Observations"}, {"description": "Observations, background, and model output using WRF-STILT with the near-field correction (NFC).", "downloadURL": "https://data.nist.gov/od/ds/mds2-3720/Observations_Merge_WRF2NFC.csv", "mediaType": "text/csv", "title": "Observations"}, {"description": "Observations, background, and modeled output using WRF-STILT.", "downloadURL": "https://data.nist.gov/od/ds/mds2-3720/Observations_Merge_WRF2.csv", "mediaType": "text/csv", "title": "Observations"}, {"description": "Observations, backgrounds, and modeled output using NAM-STILT with the near-field correction (NFC).", "downloadURL": "https://data.nist.gov/od/ds/mds2-3720/Observations_Merge_NAM2NFC.csv", "mediaType": "text/csv", "title": "Observations"}, {"description": "Observations, backgrounds, and some modeled enhancements using NAM-STILT.", "downloadURL": "https://data.nist.gov/od/ds/mds2-3720/Observations_Merge_NAM2.csv", "mediaType": "text/csv", "title": "Observations"}, {"description": "Prior emissions maps for each sector considered", "downloadURL": "https://data.nist.gov/od/ds/mds2-3720/PriorSectors.csv", "mediaType": "text/csv", "title": "Prior emissions maps for each sector considered"}, {"downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-3720/Readme_04032025.pdf", "mediaType": "application/pdf"}, {"downloadURL": "https://data.nist.gov/od/ds/ark:/88434/mds2-3720/Readme_04032025.pdf.sha256", "mediaType": "text/plain"}, {"downloadURL": "https://data.nist.gov/od/ds/mds2-3720/Posterior_Ensemble.tgz", "mediaType": "application/gzip", "title": "Posterior_Ensemble"}], "identifier": "ark:/88434/mds2-3720", "issued": "2025-03-10", "keyword": ["GHG concentration measurements", "Methane measurements and models", "emission inventories", "urban greenhouse gas domes"], "landingPage": "https://data.nist.gov/od/id/mds2-3720", "language": ["en"], "license": "https://www.nist.gov/open/license", "modified": "2025-02-07 00:00:00", "programCode": ["006:047"], "publisher": {"@type": "org:Organization", "name": "National Institute of Standards and Technology"}, "references": ["https://dx.doi.org/10.1021/acs.est.3c05050"], "temporal": "2017-05-01/2021-12-31", "theme": ["Environment:Greenhouse gas measurements"], "title": "Methane emissions estimates and related data sets for Washington DC and Baltimore, MD urban areas"}