{ "type": "Collection", "id": "noaa_imagery_collection_m6262", "stac_version": "1.1.0", "description": "These data were collected for the USACE New England District (NAE). The data set is made up of 13 small projects in Connecticut. These projects are: Bridgeport, Connecticut River, Duck Island, Milford Harbor, New Haven, Saybrook Jetties, Sear Shoals Dike, Shelton, Southport Harbor, Stamford Harbor, Stonington, Thames River, Westport Harbor. These Digital Elevation Model (DEM) files contain rasterized topobathy lidar elevations generated from data collected by the Coastal Zone Mapping and Imaging Lidar (CZMIL) system. CZMIL integrates a lidar sensor with simultaneous topographic and bathymetric capabilities, a digital camera and a hyperspectral imager on a single remote sensing platform for use in coastal mapping and charting activities. Horizontal positions, provided in decimal degrees of latitude and longitude, are referenced to the North American Datum of 1983 National Adjustment of 2011 (NAD83 NA11). Vertical positions are in orthometric heights referenced to the North American Vertical Datum of 1988 (NAVD88) and provided in meters. The 3-D position data are used to generate a series of gridded file products, which are tiled into quarter-quads or 5km boxes. In addition to the bare earth DEMs, the topobathy lidar point data are also available. 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