{"@type": "dcat:Dataset", "accessLevel": "public", "bureauCode": ["026:00"], "contactPoint": {"@type": "vcard:Contact", "fn": "EDWARD BROWELL", "hasEmail": "mailto:e.v.browell@larc.nasa.gov"}, "description": "An extensive validation experiment was conducted in September 1995 from Wallops Island, Virginia, to evaluate the performance of the LASE (Lidar Atmospheric Sensing Experiment) system for the measurement of water vapor profiles under a wide range of atmospheric and solar background conditions. During this experiment, the LASE system was flown on a high-altitude (ER-2) aircraft on ten missions for a total of 60 hours. LASE measurements of tropospheric water vapor were compared with in situ measurements from balloons and aircraft that were flown under the ER-2 and with remote measurements from the ground and from aircraft. A high-altitude aircraft (Lear Jet) was equipped with two in situ hygrometers, and a medium to low altitude aircraft (C-130) had onboard the NASA Langley airborne water vapor DIAL system and two in situ hygrometers. Several radiosondes were launched during each LASE flight, and some of these sondes were part of a concurrent international radiosonde intercomparison campaign sponsored by the World Meteorological Organization. The NASA Goddard Scanning Raman lidar also provided nighttime water vapor profile measurements from the ground. During this field experiment, LASE was also used in a number of atmospheric case studies including measurements of Hurricane Luis, a coastal sea breeze development, a strong cold front, an upper level front, and cirrus clouds.", "distribution": [{"@type": "dcat:Distribution", "description": "ASDC Data and Information for GTE", "downloadURL": "https://asdc.larc.nasa.gov/project/GTE", "format": "HTML", "mediaType": "text/html", "title": "View documentation related to this dataset"}, {"@type": "dcat:Distribution", "description": "ASDC Data and Information for LASE", "downloadURL": "https://asdc.larc.nasa.gov/project/LASE", "format": "HTML", "mediaType": "text/html", "title": "View documentation related to this dataset"}, {"@type": "dcat:Distribution", "description": "ASDC Direct Data Download for LASE_VALIDATION_1", "downloadURL": "https://asdc.larc.nasa.gov/data/LASE/LASE_VALIDATION/", "format": "HTML", "mediaType": "text/html", "title": "Download this dataset"}, {"@type": "dcat:Distribution", "description": "ASDC data citation policy", "downloadURL": "https://asdc.larc.nasa.gov/citing-data", "format": "HTML", "mediaType": "text/html", "title": "View this dataset's data citation policy"}, {"@type": "dcat:Distribution", "description": "Code for reading LASE data files - Direct File Download (.c)", "downloadURL": "https://asdc.larc.nasa.gov/documents/lase/read_software/read_lase_gte.c", "format": "HTML", "mediaType": "text/html", "title": "View this dataset's science data product software documentation"}, {"@type": "dcat:Distribution", "description": "Data set landing page for LASE_VALIDATION_1", "downloadURL": "https://asdc.larc.nasa.gov/project/LASE/LASE_VALIDATION_1", "format": "HTML", "mediaType": "text/html", "title": "This dataset's landing page"}, {"@type": "dcat:Distribution", "description": "Earthdata Search for LASE_VALIDATION_1 (NASA Application to search, discover, visualize, refine, and access NASA Earth Observation data)", "downloadURL": "https://search.earthdata.nasa.gov/search?q=C1535871788-LARC_ASDC", "format": "HTML", "mediaType": "text/html", "title": "Download this dataset through Earthdata Search"}, {"@type": "dcat:Distribution", "description": "GTE - Data Archive Format Document, September 1994", "downloadURL": "https://asdc.larc.nasa.gov/documents/gte/guide/pwb-fmat.pdf", "format": "PDF", "mediaType": "application/pdf", "title": "View documentation related to this dataset"}, {"@type": "dcat:Distribution", "description": "Global TroposphericExperiment (GTE) Langley DAAC Project/Campaign Document", "downloadURL": "https://asdc.larc.nasa.gov/documents/gte/guide/gte_project.pdf", "format": "PDF", "mediaType": "application/pdf", "title": "View documentation related to this dataset"}, {"@type": "dcat:Distribution", "description": "LASE Validation Langley DAAC Data Set Document", "downloadURL": "https://asdc.larc.nasa.gov/documents/lase/guide/base_lase_validation_dataset.pdf", "format": "PDF", "mediaType": "application/pdf", "title": "View documentation related to this dataset"}, {"@type": "dcat:Distribution", "description": "LASE_VALIDATION", "downloadURL": "https://asdc.larc.nasa.gov/documents/lase/readme/readme_lase_validation.txt", "format": "HTML", "mediaType": "text/html", "title": "View this dataset's science data product validation documentation"}, {"@type": "dcat:Distribution", "description": "NASA Earth Observatory Article: \"Critical Chemistry\" By Dan Whipple, February 14, 2000", "downloadURL": "https://earthobservatory.nasa.gov/features/CriticalChem", "format": "HTML", "mediaType": "text/html", "title": "View a micro article on this dataset"}, {"@type": "dcat:Distribution", "description": "NASA LaRC GTE Data Format Document, August 2000", "downloadURL": "https://asdc.larc.nasa.gov/documents/gte/guide/gte_fmt.pdf", "format": "PDF", "mediaType": "application/pdf", "title": "View documentation related to this dataset"}, {"@type": "dcat:Distribution", "description": "NASA Lidar Applications Group", "downloadURL": "https://science.larc.nasa.gov/lidar/", "format": "HTML", "mediaType": "text/html", "title": "The dataset's home page"}, {"@type": "dcat:Distribution", "description": "NASA Mission Overview of Global Tropospheric Experiment (GTE)", "downloadURL": "https://www-gte.larc.nasa.gov/", "format": "HTML", "mediaType": "text/html", "title": "The dataset's home page"}, {"@type": "dcat:Distribution", "description": "OPeNDAP data access for LASE_VALIDATION_1", "downloadURL": "https://opendap.larc.nasa.gov/opendap/LASE/LASE_VALIDATION/contents.html", "format": "HTML", "mediaType": "text/html", "title": "Use OPeNDAP to access the dataset's data"}, {"@type": "dcat:Distribution", "description": "Project/Campaign Document: LASE Langley DAAC", "downloadURL": "https://asdc.larc.nasa.gov/documents/lase/guide/lase_project.pdf", "format": "PDF", "mediaType": "application/pdf", "title": "View documentation related to this dataset"}], "identifier": "C1535871788-LARC_ASDC", "issued": "1999-10-13", "keyword": ["aerosols", "atmosphere", "earth-science"], "landingPage": "https://cmr.earthdata.nasa.gov:443/search/concepts/C1535871788-LARC_ASDC.html", "language": ["en-US"], "modified": "2025-07-17", "programCode": ["026:001"], "publisher": {"@type": "org:Organization", "name": "NASA/LARC/SD/ASDC"}, "spatial": "<?xml version=\"1.0\" encoding=\"UTF-8\"?><gml:Polygon xmlns:gml=\"http://www.opengis.net/gml/3.2\" srsName=\"EPSG:9825\"><gml:outerBoundaryIs><gml:LinearRing><gml:posList>28.7 -85.74 28.7 -62.66 42.87 -62.66 42.87 -85.74 28.7 -85.74</gml:posList></gml:LinearRing></gml:outerBoundaryIs><gml:innerBoundaryIs></gml:innerBoundaryIs></gml:Polygon>", "temporal": "1995-09-08T00:00:00Z/1995-09-27T23:59:59.999Z", "theme": ["LASE", "geospatial"], "title": "Lidar Atmospheric Sensing Experiment (LASE) Validation"}