{"@type": "dcat:Dataset", "accessLevel": "public", "accrualPeriodicity": "irregular", "bureauCode": ["026:00"], "contactPoint": {"@type": "vcard:Contact", "fn": "undefined", "hasEmail": "mailto:metadata@ciesin.columbia.edu"}, "description": "In preparation for the concerted international study of Comet Halley, the IHW conducted a trial run with observations of Comet Crommelin, largely during February and March of 1984.", "distribution": [{"@type": "dcat:Distribution", "description": "Data Download Page", "downloadURL": "https://sedac.ciesin.columbia.edu/data/set/sdei-global-annual-gwr-pm2-5-modis-misr-seawifs-viirs-aod-v5-gl-04/data-download", "format": "HTML", "mediaType": "text/html", "title": "Download this dataset"}, {"@type": "dcat:Distribution", "description": "Data Set\u00a0Overview Page", "downloadURL": "https://sedac.ciesin.columbia.edu/data/set/sdei-global-annual-gwr-pm2-5-modis-misr-seawifs-viirs-aod-v5-gl-04", "format": "HTML", "mediaType": "text/html", "title": "View documentation related to this dataset"}, {"@type": "dcat:Distribution", "description": "Documentation Page", "downloadURL": "https://sedac.ciesin.columbia.edu/data/set/sdei-global-annual-gwr-pm2-5-modis-misr-seawifs-viiirs-aod-v5-gl-04/docs", "format": "HTML", "mediaType": "text/html", "title": "View documentation related to this dataset"}, {"@type": "dcat:Distribution", "description": "Sample browse graphic of the data set.", "downloadURL": "https://sedac.ciesin.columbia.edu/downloads/maps/sdei/sdei-global-annual-gwr-pm2-5-modis-misr-seawifs-viirs-aod-v5-gl-04/sdei-global-annual-gwr-pm2-5-modis-misr-seawifs-viirs-aod-v5-gl-04-2022-thumbnail.jpg", "format": "JPEG", "mediaType": "image/jpeg", "title": "Get a related visualization"}, {"@type": "dcat:Distribution", "description": "Search results for publications that cite this dataset by its DOI.", "downloadURL": "https://scholar.google.com/scholar?q=10.7927%2Fas2r-9p42", "format": "HTML", "mediaType": "text/html", "title": "Google Scholar search results"}], "identifier": "urn:nasa:pds:context_pds3:data_set:data_set.ihw-c-irftab-2-rdr-gz-v1.0_y8ph-fbir", "issued": "2018-06-26", "keyword": ["halley", "international-halley-watch"], "landingPage": "https://pds.nasa.gov/ds-view/pds/viewDataset.jsp?dsid=IHW-C-IRFTAB-2-RDR-GZ-V1.0", "modified": "2025-07-17", "programCode": ["026:005"], "publisher": {"@type": "org:Organization", "name": "National Aeronautics and Space Administration"}, "references": ["https://pds.nasa.gov"], "theme": ["Earth Science"], "title": "IHW COMET IRFTAB EDITED REDUCED DATA RECORD GZ V1.0"}