{"accessLevel": "public", "bureauCode": ["010:12"], "contactPoint": {"@type": "vcard:Contact", "fn": "Patrick Whelley", "hasEmail": "mailto:patrick.l.whelley@nasa.gov"}, "description": "LiDAR scans were taken using a tripod mounted Riegl VZ-400 scanning LiDAR. The tripod was set up such that the scanner was between 1.5 and 2.5 m tall. The VZ-400 is a near infrared (1550 nm) scanner. Geometric control was achieved using a pair of Trimble RB GPS antennae, one mounted on the LiDAR scanner (rover) and the other setup as a base station. Before taking a LiDAR scan, the VZ-400 would use the GPSs to fix a real time kinematic (RTK) solution for the scanner\u2019s location and then use that position (scan position) as a reference for LiDAR returns. Post processing was done using RIScan-Pro version 2 (scanner specific software). Also, in post-processing, overlapping areas of point clouds were merged and inaccuracies in roll, pitch, and yaw, were resolved using a multi station adjustment routine. The data were projected in UTM coordinates for export. Once post-processed, data were exported in \u201c.las\u201d format with LiDAR reflectance (infrared)  saved as intensity. The point cloud is georeferenced and projected in UTM Zone 28 North and generally has  < 1 cm point spacing, however spacing varies locally and depending on the distance from the scanner to the target. There is a single merged point cloud for each scan year: 2015, 2016, 2018, and 2019 (indicated in file name). See processing report for scan data ranges. There is also a text file with the locations of scan positions for each year (NASA_GIFT_Iceland_ Baugur_2015-2019_UTM28_ScanPositions.csv).", "distribution": [{"@type": "dcat:Distribution", "accessURL": "https://doi.org/10.5066/P9VQPE9W", "description": "Landing page for access to the data", "format": "XML", "mediaType": "application/http", "title": "Digital Data"}, {"@type": "dcat:Distribution", "description": "The metadata original format", "downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.6495d47bd34ef77fcb01e229.xml", "format": "XML", "mediaType": "text/xml", "title": "Original Metadata"}], "identifier": "http://datainventory.doi.gov/id/dataset/USGS_6495d47bd34ef77fcb01e229", "keyword": ["Baugur", "Holocene, 2014", "Holuhraun", "Iceland", "USGS:6495d47bd34ef77fcb01e229", "cinder", "geoscientificInformation", "lava flow", "lidar", "regolith", "spatter", "vent", "volcanism"], "modified": "2023-08-08T00:00:00Z", "publisher": {"@type": "org:Organization", "name": "U.S. Geological Survey"}, "spatial": "-16.85907, 64.85942, -16.77906, 64.88405", "theme": ["geospatial"], "title": "NASA GIFT Iceland Highlands: 2015-2019 Baugur LiDAR"}