NOAA’s VDatum is a free, comprehensive tool designed to transform geospatial data across 36 distinct vertical reference systems, effectively bridging the gap between topographic and bathymetric data. It supports critical coastal applications, including inundation modeling, navigation security, and shoreline delineation by integrating ellipsoidal, orthometric, and tidal datums. For more information and to access the tool, visit VDatum NOAA. NOAA/NOS’s VDatum 4.8: Vertical Datums Transformation
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