JALBTCX administers the National Coastal Mapping Program (NCMP) for the US Army Corps of Engineers (USACE). The Compact Hydrographic Airborne Rapid Total Survey (CHARTS) system is our JALBTCX in-house survey capability that includes a SHOALS-3000 lidar instrument integrated with a CASI 1500 hyperspectral imager. CHARTS collects either 20 kHz topographic lidar data or 3 kHz bathymetric lidar data, each concurrent with digital RGB and hyperspectral imagery.
The survey specification for the NCMP requires all three of these data types. Bathymetric data are collected from the shoreline to 1 km offshore at 5 m spacing. Topographic data are collected from the shoreline to 0.5 km onshore at 1 m spacing. The topographic data are collected in opposing flight directions, resulting in 200% coverage of the land portion of the survey. All data are positioned using post-processed kinematic GPS and National Geodetic Survey monumentation. The RGB digital imagery have a ground resolution of 20 cm per pixel and the CASI imagery have a ground resolution of 0.5 to 2 m per pixel depending on the operational survey requirement. Both sets of images are georeferenced using CHARTS positioning and attitude sensor data. GIS products derived from these data include seamless bathy/topo grids, bare earth grids, building footprints, an NAVD88 shoreline vector, and RGB or hyperspectral image mosaics.
Click "Download CHARTS data" to download xyz or gridded CHARTS data using the NOAA Coastal Services Center LDART tool. You can access GIS products through the USACE eCoastal GIS.
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