{"@type": "dcat:Dataset", "accessLevel": "public", "bureauCode": ["026:00"], "contactPoint": {"@type": "vcard:Contact", "fn": "Earthdata Forum", "hasEmail": "mailto:earthdata-support@nasa.gov"}, "description": "The MODIS Airborne Simulator (MAS) is an airborne scanning spectrometer that acquires high spatial resolution imagery of cloud and surface features from its vantage point on-board a NASA ER-2 high-altitude research aircraft. This dataset has visible and infrared imagery calibrated to at-sensor radiance. Included are many associated browse files including the flight line tracks, and also text files of nadir brightness temperature and radiance for selected bands.", "distribution": [{"@type": "dcat:Distribution", "downloadURL": "https://search.earthdata.nasa.gov/search?q=c4emas", "format": "BIN", "mediaType": "application/octet-stream"}, {"@type": "dcat:Distribution", "downloadURL": "https://ghrc.earthdata.nasa.gov/browseui/#pub/c4emas__1/browse/c4emas_01131_08.jpg", "format": "JPEG", "mediaType": "image/jpeg"}, {"@type": "dcat:Distribution", "downloadURL": "http://ghrc.nsstc.nasa.gov/uso/ds_docs/camex4/c4emas/c4emas_dataset.html", "format": "HTML", "mediaType": "text/html"}, {"@type": "dcat:Distribution", "downloadURL": "https://ghrc.earthdata.nasa.gov/browseui/#pub/c4emas__1/docs/c4emas_readme.txt", "format": "TXT", "mediaType": "text/plain"}, {"@type": "dcat:Distribution", "downloadURL": "https://ghrc.nsstc.nasa.gov/home/field-campaigns/camex4", "format": "BIN", "mediaType": "application/octet-stream"}, {"@type": "dcat:Distribution", "downloadURL": "https://ghrc.earthdata.nasa.gov/browseui/#pub/c4emas__1/browse/", "format": "BIN", "mediaType": "application/octet-stream"}, {"@type": "dcat:Distribution", "downloadURL": "https://ghrc.nsstc.nasa.gov/home/about-ghrc/citing-ghrc-daac-data", "format": "BIN", "mediaType": "application/octet-stream"}, {"@type": "dcat:Distribution", "conformsTo": "http://www.isotc211.org/2005/gmi", "description": "The metadata's original source.", "downloadURL": "https://cmr.earthdata.nasa.gov/search/concepts/C1979098622-GHRC_DAAC.iso19115", "format": "ISO", "mediaType": "text/xml", "title": "Original Metadata"}], "identifier": "10.5067/CAMEX-4/MAS/DATA101", "keyword": ["earth-science-infrared-wavelengths-spectral-engineering-infrared-imagery", "earth-science-infrared-wavelengths-spectral-engineering-infrared-radiance", "earth-science-visible-wavelengths-spectral-engineering-visible-imagery", "earth-science-visible-wavelengths-spectral-engineering-visible-radiance"], "license": "https://www.usa.gov/government-works", "modified": "2026-04-06", "programCode": ["026:000"], "publisher": {"@type": "org:Organization", "name": "NASA/MSFC/GHRC"}, "spatial": "[\"CARTESIAN\",[{\"WestBoundingCoordinate\":-88.4527,\"NorthBoundingCoordinate\":39.6253,\"EastBoundingCoordinate\":-61.8203,\"SouthBoundingCoordinate\":16.4311}]]", "temporal": "2001-08-18/2001-09-25", "theme": ["Earth Science"], "title": "CAMEX-4 ER-2 MODIS AIRBORNE SIMULATOR (MAS) V1"}