Catalog - Data.gov

#1 Federal

Preliminary hard and soft bottom seafloor substrate map derived from an unsupervised classification of gridded backscatter and bathymetry derivatives at Pagan Island, Commonwealth of the Northern Mariana Islands (CNMI).

Organization: National Oceanic and Atmospheric Administration, Department of Commerce
Dataset Last Updated: October 10, 2008 at 12:00 AM

Preliminary hard and soft seafloor substrate map derived from an unsupervised classification of multibeam backscatter and bathymety derivatives at Pagan Island, Commonwealth of the Northern...

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Search relevance: 1.00 | Views last month: 6 | Catalog Last Checked: August 01, 2026 at 07:56 AM

#2 Federal

Preliminary hard and soft bottom seafloor substrate map derived from an unsupervised classification of gridded backscatter and bathymetry derivatives at Tutuila Island, American Samoa, South Pacific.

Organization: National Oceanic and Atmospheric Administration, Department of Commerce
Dataset Last Updated: June 02, 2008 at 12:00 AM

Preliminary hard and soft seafloor substrate map derived from an unsupervised classification of multibeam backscatter and bathymety derivatives at Tutuila Island, American Samoa, South Pacific....

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Search relevance: 1.00 | Views last month: 5 | Catalog Last Checked: August 01, 2026 at 08:20 AM

#3 Federal

Preliminary hard and soft bottom seafloor substrate map derived from an unsupervised classification of gridded backscatter and bathymetry derivatives at Tinian Island, Commonwealth of the Northern Mariana Islands (CNMI).

Organization: National Oceanic and Atmospheric Administration, Department of Commerce
Dataset Last Updated: October 10, 2008 at 12:00 AM

Preliminary hard and soft seafloor substrate map derived from an unsupervised classification of multibeam backscatter and bathymety derivatives at Tinian Islands and Tatsumi Bank, CNMI. The...

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Search relevance: 1.00 | Views last month: 4 | Catalog Last Checked: August 01, 2026 at 08:20 AM

#4 Federal

Preliminary hard and soft bottom seafloor substrate map derived from an unsupervised classification of gridded backscatter and bathymetry derivatives at Saipan Island, Commonwealth of the Northern Mariana Islands (CNMI).

Organization: National Oceanic and Atmospheric Administration, Department of Commerce
Dataset Last Updated: October 10, 2008 at 12:00 AM

Preliminary hard and soft seafloor substrate map derived from an unsupervised classification of multibeam backscatter and bathymety derivatives at Saipan Island, Commonwealth of the Northern...

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Search relevance: 1.00 | Views last month: 4 | Catalog Last Checked: August 01, 2026 at 07:58 AM

#5 Federal

Land-Cover Data Derived from Landsat Satellite Imagery, Assateague Island to Metompkin Island, Maryland and Virginia, 1985 and 2015

Organization: Department of the Interior
Dataset Last Updated: October 13, 2020 at 12:00 AM

This U.S. Geological Survey (USGS) data release includes geospatial datasets that were created to analyze wetland changes along the Virginia and Maryland Atlantic coasts between 1984 and 2015....

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Search relevance: 1.00 | Views last month: 2 | Catalog Last Checked: August 01, 2026 at 05:46 AM

#6 Federal

Preliminary hard and soft bottom seafloor substrate map derived from an unsupervised classification of gridded backscatter and bathymetry derivatives at French Frigate Shoals, Northwest Hawaiian Islands, USA

Organization: National Oceanic and Atmospheric Administration, Department of Commerce
Dataset Last Updated: September 01, 2009 at 12:00 AM

Preliminary hard and soft seafloor substrate map derived from an unsupervised classification of multibeam backscatter and bathymety derivatives at French Frigate Shoals, Northwestern Hawaiian...

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Search relevance: 1.00 | Views last month: 2 | Catalog Last Checked: August 01, 2026 at 07:29 AM

#7 Federal

CRED Preliminary hard and soft bottom seafloor substrate map derived from an unsupervised classification of gridded backscatter and bathymetry derivatives at the U.S. Territory of Guam.

Organization: National Oceanic and Atmospheric Administration, Department of Commerce
Dataset Last Updated: October 10, 2008 at 12:00 AM

Preliminary hard and soft seafloor substrate map derived from an unsupervised classification of multibeam backscatter and bathymety derivatives at the U.S. Territory of Guam. The dataset was...

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Search relevance: 1.00 | Views last month: 2 | Catalog Last Checked: August 01, 2026 at 06:47 AM

#8 Federal

Land-Cover Data Derived from Landsat Satellite Imagery, Assateague Island to Metompkin Island, Maryland and Virginia, 1984 to 2014

Organization: Department of the Interior
Dataset Last Updated: October 13, 2020 at 12:00 AM

The U.S. Geological Survey has a long history of responding to and documenting the impacts of storms along the Nation’s coasts and incorporating these data into storm impact and coastal change...

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Search relevance: 1.00 | Views last month: 1 | Catalog Last Checked: August 01, 2026 at 03:40 AM

#9 Federal

Shoreline Positions and Sand Extents Derived from Landsat Satellite Imagery, Assateague Island to Metompkin Island, Maryland and Virginia, 1984 to 2014

Organization: Department of the Interior
Dataset Last Updated: October 13, 2020 at 12:00 AM