Bathymetry Data Download

THESE DATA ARE NOT TO BE USED FOR NAVIGATION
*** Each zip file includes a grid and a map (jpeg)

Mariana Archipelago Downloads

Bathymetry of Marpi Bank, Commonwealth of Northern Mariana Islands
5 m grid (UTM)
NetCDF/GMT:   5.5 MB
marpi-5.grd.zip   (1.7 MB)
marpi-5.grd.txt
Arc ASCII:   18.5MB
marpi-5.asc.zip   (2.2 MB)
marpi-5.asc.txt
Bathymetry of the banktops and shelf environments of Saipan Island, Commonwealth of Northern Mariana Islands. Almost complete bottom coverage was achieved in depths between 20 and 250 meters.
5 m grid (UTM)
NetCDF/GMT:   113.2 MB
saipan-5.grd.zip   (14.5 MB)
saipan-5.grd.txt    
Arc ASCII:   242.4MB
saipan-5.asc.zip   (20.0 MB)
saipan-5.asc.txt    
Bathymetry of Garapan Anchorage off Saipan Harbor, Commonwealth of Northern Mariana Islands. Subset of saipan-5 grid.
5 m grid (UTM)
NetCDF/GMT:   26.5 MB
saipan_anc-5.grd.zip   (7.2 MB)
saipan_anc-5.grd.txt    
Arc ASCII:   81.2 MB
saipan_anc-5.asc.zip   (9.7 MB)
saipan_anc.asc.txt    
Bathymetry of Tinian Island including Tatsumi Bank, Commonwealth of Northern Mariana Islands
5 m grid (UTM)
NetCDF/GMT:   60.3MB
tinian-5.grd.zip   (7.1 MB)
tinian-5.grd.txt    
Arc ASCII:   123.3MB
tinian-5.asc.zip   (9.3 MB)
tinian-5.asc.txt    
Bathymetry of southeastern Bathymetry mapping of Rota, Sasanhaya Fish Preserve, Commonwealth of Northern Mariana Islands
5 m grid (UTM)
NetCDF/GMT:   5.1 MB
rota_sw-5.grd.zip   (0.8 MB)
rota_sw-5.grd.txt    
Arc ASCII:   11.7MB
rota_sw-5.asc.zip   (1.0 MB)
rota_sw-5.asc.txt    
Bathymetry of northeastern Guam, including Pati Point Marine Preserve
5 m grid (UTM)
NetCDF/GMT:   30.0 MB
guam_ne-5.grd.zip   (2.9MB)
guam_ne-5.grd.txt    
Arc ASCII:   58.6MB
guam_ne-5.asc.zip   (3.9 MB)
guam_ne-5.asc.txt

American Samoa Downloads

Bathymetry of the banktop and slope environments around Tutuila covered by 2004 NOAA multibeam survey.
5 m grid (UTM)
NetCDF/GMT:   77.8 MB
tutuila-5.grd.zip   ( 9.7 MB)
tutuila-5.grd.txt    
Arc ASCII:   284.6 MB
tutuila-5.asc.zip   (20.7 MB)
tutuila-5.asc.txt    
Grids of specific features around Tutuila
Bathymetry of the banktop and slope environments of southern Tutuila, Amercian Samoa between the airport and Aunuu Island.
5 m grid (UTM)
NetCDF/GMT:   21.9 MB
tutuila_se-5.grd.zip   (4.9 MB)
tutuila_se-5.grd.txt    
Arc ASCII:   62.1 MB
tutuila_se-5.asc.zip   (6.7 MB)
tutuila_se-5.asc.txt    
Bathymetry of the channel between Tutuila and Aunuu, American Samoa
5 m grid (UTM)
NetCDF/GMT:   2.3 MB
aunuu-5.grd.zip   (1.0 MB)
aunuu-5.grd.txt    
Arc ASCII:   7.5 MB
aunuu-5.asc.zip   (1.9 MB)
aunuu-5.asc.txt    
Bathymetry of the south central coast of Tutuila from Fagatele Point to the eastern end of the airport, American Samoa
10 m grid (UTM)
NetCDF/GMT:   2.2 MB
tutuila_sc-10.grd.zip   (0.2 MB)
tutuila_sc-10.grd.txt    
Arc ASCII:   4.5MB
tutuila_sc-10.asc.zip   (0.3 MB)
tutuila_sc-10.asc.txt    
Bathymetry of the wreck of the USS Chehalis in Pago Pago Harbor, American Samoa. This data was collected to highlight details of the ship wreck.
1 m grid (UTM)
NetCDF/GMT:   0.6 MB
chehalis-1.grd.zip   (0.1 MB)
chehalis-1.grd.txt    
Arc ASCII:   1.8 MB
chehalis-1.asc.zip   (0.2 MB)
chehalis-1.asc.txt    
Bathymetry of the banktop and slope environments of Ofu and Olosega Islands pf the Manu'a Island group, American Samoa
5 m grid (UTM)
NetCDF/GMT:   15.3 MB
ofuolo-5.grd.zip   (3.4 MB)
ofuolo-5.grd.txt    
Arc ASCII:   40.4MB
ofuolo-5.asc.zip   (4.4 MB)
ofuolo-5.asc.txt    
Bathymetry of the banktop and slope environments of Ta'u Island of the Manu'a Island Group, American Samoa
10 m grid (UTM)
NetCDF/GMT:   4.9 MB
tau-10.grd.zip   (0.7 MB)
tau-10.grd.txt    
Arc ASCII:   10.1 MB
tau-10.asc.zip   (1 MB)
tau-10.asc.txt    
Bathymetry of volcanic ridge between Olosega and Ta'u Islands of the Manu'a Group, American Samoa
10 m grid (UTM)
NetCDF/GMT:   1.3 MB
tau_w-10.grd.zip   (0.2 MB)
tau_w-10.grd.txt    
Arc ASCII:   3.1 MB
tau_w-10.asc.zip   (0.3 MB)
tau_w-10.asc.txt    

Northwestern Hawaiian Island Downloads

Bathymetry of offshore banks of Midway Atoll, Northwestern Hawaiian Islands between 20 and 200 meters.
5 m grid (UTM)
NetCDF/GMT:   80.8 MB
midway-5.grd.zip   (16.1 MB)
midway-5.grd.txt    
Arc ASCII:   214.3 MB
midway-5.asc.zip   (21.8 MB)
midway-5.asc.txt

Also please review the Bathymetric Atlas of the Northwestern Hawaiian Islands, a planning document that describes the bathymetric data that were available in the NWHI as of May 2003. The atlas was developed to serve as a basis for planning future work in the area. Portions of the data presented in the atlas are available for download.

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