The Hilo DEM integrates bathymetry and topography in the area surrounding the town of Hilo, Hawaii. It covers the eastern portion of the Island of Hawaii, including the communities of Honomu, Pepeekeo, Pohoiki, and Opihikao, and extends down the underwater flanks of the volcanic edifice. The DEM has a 1/3 arc-second (~10 meter) cell size, and is referenced to a vertical datum of mean high water. It was built in August 2011 to support NOAA's Tsunami Program.
|Horizontal Datum||WGS 84|
|Vertical Datum||MHW (meters)|
|Vertical Transformation||Source elevation data transformed vertically using a constant offset.|
|Cell Size||1/3 arc-second|
|Source||NOAA / NGDC / MGG|
|Developer||NOAA / NGDC / MGG|
|Project||NOAA Tsunami Inundation|
|Contact||Barry W Eakins @ NOAA / NGDC|
WARNING: DEM not to be used for navigation.