NAVD88_MHHW_NC.Rd
Values are in meters. To convert from NAVD88 to MHHW tidal datum, subtract the conversion raster from a DEM with NAVD88 elevation values.
NAVD88_MHHW_NC
RasterLayer:
6197 X 6775 pixels
50 meter
UTM zone 18
-0.99, 0.7606
https://coast.noaa.gov/htdata/Inundation/TidalSurfaces/NOAA_OCM_MHHWInterpolatedSurface.zip