50 Meter Bathymetry and Topography Grids (GMT and Arc)

Version 19 Bathymetry

A complete synthesis (shown above) can be downloaded in both ESRI grid format as well as GMT netcdf format.

Bathymetry and Topography Synthesis

Bounds (N/S/E/W): -161/-154/18/24
Cell Size (meters): ~50 meters
Cell Size (degrees): 0.0005
Datum: WGS84
Elevation: Meters
GMT Grid (netcdf): Bathymetry & Topography Grid (~687 MBs)
Bathymetry & Topography Gradient (~815 MBs)
ArcGIS Grids: Bathymetry & Topography Grid (~879 MBs)
Hillshade Grid (~1.2 GBs)
Global Mapper Grid: Bathymetry & Topography Grid (~297 MBs)


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50 Meter Bathymetry Grids (GMT and Arc)

Version 19 Bathymetry

A complete synthesis (shown above) can be downloaded in both ESRI grid format as well as GMT netcdf format.

Bathymetry Synthesis

Bounds (N/S/E/W): -161/-154/18/24
Cell Size (meters): ~50 meters
Cell Size (degrees): 0.0005
Datum: WGS84
Elevation: Meters
GMT Grid (netcdf): Bathymetry Grid (665 MBs)
Gradient Grid (795 MBs)
ArcGIS Grid: Bathymetry Grid (~851 MBs)
Hillshade Grid (~1.1 GBs MBs)
Global Mapper Grid: Bathymetry Grid (~347 MBs)


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Regional Grid (1 km x 1km)

Regional Bathymetry Synthesis

A lower resolution version of the bathymetry synthesis was also made. This version which has a resolution of 1km x 1km is meant for modeling and location maps. The grid is formed by combining the multibeam synthesis along with USGS DEMs and the Smith and Sandwell Measured and Estimated Seafloor Topography.

Bounds (N/S/E/W): -161.5/-154.5/17.5/24.5
Cell Size (meters): ~1 km
Cell Size (degrees): 0.01
Datum: WGS84
Elevation: Meters
GMT Grid (netcdf): Bathymetry/Topography Grid (~2.2 MBs)
ArcGIS Grid: Bathymetry/Topography Grid (~3 MBs)
Global Mapper Grid: Bathymetry/Topography Grid (~1.2 MBs)

 

Update: Version 19 of the synthesis was released on May 13, 2011. All files on the website (grids, maps, images, etc.) are currently being updated to show the new dataset. Version 18 files can still be downloaded from ftp.soest.hawaii.edu in pjohnson/MBS18 and the Version 19 files are available at ftp.soest.hawaii.edu in pjohnson/MBS19 . Enjoy! - PDJ

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