Guam Island | Pacific Islands Benthic Habitat Mapping Center

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Guam Island
[ Bathymetry | Backscatter | Optical Validation | Geomorphology ]

Guam (Guahan in native Chamorro) is the southern-most island of the Mariana Archipelago and is located at 13 28’ N, 144 47’ E. It has a total area of 541.3 km2 and the highest point is Mount Lamlam at 406 m. It had an estimated population of 173,456 in 2007. In 1950 under the Guam Organic Act, the island became an organized, unincorporated territory of the United States under the jurisdiction of the Office of Insular Affairs, Dept. of the Interior (DOI). Northern Guam is composed of flat, uplifted limestone, while the southern half is raised volcanic material. Over 10% of Guam’s coastline has been set aside in five marine preserves, in an effort to combat declining reef health over the past 40 years. more …

Click thumbnail maps below to explore PIBHMC’s data sets.

Bathymetry

Small Guam 60 meter grid image.

Backscatter

Go to Guam backscatter page.

Optical Validation

Go to Saipan optical validation page.

Geomorphology

Small Guam 60 meter grid image.

DATA BY LOCATION

Benthic Habitat Mapping

Benthic Habitat Data

Bathymetry

Zipped data files contain 1) grid data file (GMT or ASCII), 2) high-res JPG of image, and 3) explanatory metadata text file (identical to linked file listed below). * Ikonos imagery & USGS Digital Ortho Quarter Quads NOT included with download.

60m grid data
  • View Metadata: Metadata text
  • Zipped Data: Arc ASCII
Coverage Map
  • View Metadata: Metadata text
Multibeam & Lidar Integrated Bathymetry
  • View Metadata: Metadata text
  • Zipped Data: Arc ASCII
5m grid data
  • View Metadata: Metadata text
  • Zipped Data: Arc ASCII

Backscatter Imagery

  • AHI Reson 8101ER
  • Hi‘ialakai Simrad EM300

Optical Validation

  • View: Metadata 2003 | Map
  • Download: Shapefiles, JPG & metadata 2003

Geomorphology

  • Zipped data files contain 1) Arc ASCII file, 2) layer (.lyr) file for symbology, 3) high-res JPG of image, and 4) explanatory metadata text file (identical to linked file listed below).

    5m grid data files
    • Substrate GeoTIFFs: Hard bottom vs. Sand bottom Metadata text Zipped data
    • Slope Arc ASCII: Metadata text • Zipped data
    • Rugosity Arc ASCII: Metadata text • Zipped data
    • BPI Structures Arc ASCII: Metadata text • Zipped data
    • BPI Zones Arc ASCII: Metadata text • Zipped data
    60m grid data files
    • Slope Arc ASCII: Metadata text • Zipped data
    • Rugosity Arc ASCII: Metadata text • Zipped data
    • BPI Structures Arc ASCII: Metadata text • Zipped data
    • BPI Zones Arc ASCII: Metadata text • Zipped data

Tag » Where Is Guam Located On A Map