2024 Indiana DNR 4 Band Imagery: Indiana Coastline
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PROJECT NAME: Indiana 2021-2024 Orthophotography Program TASK NAME: DNR, IN 2024 project includes data captured at the following specifications: New 1"= 50' scale ortho mosaics at a 0.25-foot pixel resolution. Products: Tiled GeoTIFF: 4-band, 8-bit, uncompressed Tiled ECW: 4-band, 8-bit, 20:1 compression ratio Tiled MrSID: 4-band, 8-bit, Gen4, 20:1 compression ratio Countywide MrSID: 3-band, 8-bit, Gen4, 20:1 compression ratio Projection: EPSG2968: NAD83(HARN) Indiana West (ftUS) This metadata record references the 4 Band, 8-bit GeoTIFF data that was provided to the NOAA Office for Coastal Management (OCM) by the Indiana Dept. of Natural Resources, to make the data available for bulk and custom downloads from the NOAA Digital Coast Data Access Viewer.
San Diego, California 1/3 Arc-second MHW Coastal Digital Elevation Model
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NOAA's National Geophysical Data Center (NGDC) is building high-resolution digital elevation models (DEMs) for select U.S. coastal regions. These integrated bathymetric-topographic DEMs are used to support tsunami forecasting and warning efforts at the NOAA Center for Tsunami Research, Pacific Marine Environmental Laboratory (PMEL). The DEMs are part of the tsunami forecast system SIFT (Short-term Inundation Forecasting for Tsunamis) currently being developed by PMEL for the NOAA Tsunami Warning Centers, and are used in the MOST (Method of Splitting Tsunami) model developed by PMEL to simulate tsunami generation, propagation, and inundation. Bathymetric, topographic, and shoreline data used in DEM compilation are obtained from various sources, including NGDC, the U.S. National Ocean Service (NOS), the U.S. Geological Survey (USGS), the U.S. Army Corps of Engineers (USACE), the Federal Emergency Management Agency (FEMA), and other federal, state, and local government agencies, academic institutions, and private companies. DEMs are referenced to the vertical tidal datum of North American Vertical Datum of 1988 (NAVD 88) or Mean High Water (MHW) and horizontal datum of World Geodetic System 1984 (WGS84). Cell size for the DEMs ranges from 1/3 arc-second (~10 meters) to 3 arc-seconds (~90 meters).