Catalog - Data.gov

#1 Federal

Mosaic of gridded multibeam bathymetry and bathymetry derived from multispectral IKONOS satellite imagery of Ofu and Olosega Islands, Territory of American Samoa, USA

Organization: National Oceanic and Atmospheric Administration, Department of Commerce
Dataset Last Updated: December 03, 2008 at 12:00 AM

Gridded multibeam bathymetry is integrated with bathymetry derived from multipectral IKONOS satellite data. Gridded (5 m cell size) multibeam bathymetry collected aboard NOAA Ship Hiialaka'i and...

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Search relevance: 1.00 | Views last month: 5 | Catalog Last Checked: May 05, 2026 at 09:28 PM

#2 Federal

Bathymetric Position Index (BPI) Structures 5 m grid derived from gridded bathymetry of Ofu and Olosega Islands, Territory of American Samoa, USA.

Organization: National Oceanic and Atmospheric Administration, Department of Commerce
Dataset Last Updated: April 28, 2010 at 12:00 AM

BPI Structures are derived from two scales of a focal mean analysis on bathymetry and slope. The grid is based on gridded (5 m cell size) multibeam bathymetry, collected aboard R/V AHI merged with...

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Search relevance: 1.00 | Views last month: 4 | Catalog Last Checked: May 05, 2026 at 09:28 PM

#3 Federal

Rugosity grid derived from gridded bathymetry Ofu and Olosega Islands of the Manu'a Island group, American Samoa

Organization: National Oceanic and Atmospheric Administration, Department of Commerce
Dataset Last Updated: April 28, 2010 at 12:00 AM

Rugosity is derived from gridded (5 m cell size) multibeam bathymetry, collected aboard R/V AHI, and bathymetry derived from multispectral IKONOS satellite imagery using the Benthic Terrain...

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Search relevance: 1.00 | Views last month: 4 | Catalog Last Checked: May 05, 2026 at 09:28 PM

#4 Federal

CRED REA Coral Population Parameters at Ofu and Olosega Island, American Samoa, 2004

Organization: National Oceanic and Atmospheric Administration, Department of Commerce
Dataset Last Updated: February 13, 2006 at 12:00 AM

Belt transects along 2 consecutively-placed, 25m transect lines were surveyed as part of Rapid Ecological Assessments conducted at 8 sites at Ofu and Olosega Islands in American Samoa in February,...

Search relevance: 1.00 | Views last month: 4 | Catalog Last Checked: May 05, 2026 at 08:30 PM

#5 Federal

2004 Reson 8101ER Multibeam Sonar Data from Cruise AHI0402 collected around Tutuila, Ofu, Olosega, and Ta'u Islands, Territory of American Samoa.

Organization: National Oceanic and Atmospheric Administration, Department of Commerce
Dataset Last Updated: September 07, 2006 at 12:00 AM

Abstract Reson 8101ER multibeam Data were collected from 30 January and March 12, 2004, aboard NOAA Survey Launch Acoustic Habitat Investigator (AHI) at Tutuila, Ofu, Olosega, and Ta'u Islands in...

Search relevance: 1.00 | Views last month: 4 | Catalog Last Checked: May 05, 2026 at 08:06 PM

#6 Federal

American Samoa: Projected coastal flooding depths for 1-, 20-, and 100-year return interval storms and 0.00, +0.25, +0.50, +1.00, +1.50, +2.00, and +3.00 meter sea-level rise scenarios

Organization: Department of the Interior
Dataset Last Updated: March 24, 2026 at 12:00 AM

This data release provides flood depth GeoTIFFs based on sea-level rise and wave-driven total water levels for the coast of the American Samoa’s most populated islands of Tutuila, Ofu-Olosega,...

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Search relevance: 1.00 | Views last month: 4 | Catalog Last Checked: May 05, 2026 at 10:18 PM

#7 Federal

Slope grid derived from gridded bathymetry of Ofu and Olosega Islands, Territory of American Samoa, USA

Organization: National Oceanic and Atmospheric Administration, Department of Commerce
Dataset Last Updated: April 28, 2010 at 12:00 AM

Slope is derived from gridded (5 m cell size) multibeam bathymetry, collected aboard R/V AHI, and bathymetry derived from multispectral IKONOS satellite imagery. Cell values reflect the maximum...

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Search relevance: 1.00 | Views last month: 3 | Catalog Last Checked: May 05, 2026 at 09:28 PM

#8 Federal

Ofu, American Samoa, wave and water level data, 2020

Organization: Department of the Interior
Dataset Last Updated: January 23, 2024 at 12:00 AM

Time series data of wave height and water surface elevation were acquired for 399 days at four locations on the southern reef of Ofu, American Samoa, in support of a study on submarine groundwater...

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Search relevance: 1.00 | Views last month: 2 | Catalog Last Checked: May 05, 2026 at 07:59 PM

#9 Federal

American Samoa: Projected coastal flooding extents for 1-, 20-, and 100-year return interval storms and 0.00, +0.25, +0.50, +1.00, +1.50, +2.00, and +3.00 meter sea-level rise scenarios

Organization: Department of the Interior
Dataset Last Updated: March 24, 2026 at 12:00 AM

This data release provides flooding extent polygons based on sea-level rise and wave-driven total water levels for the coast of American Samoa's most populated islands of Tutuila, Ofu-Olosega, and...

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Search relevance: 1.00 | Views last month: 2 | Catalog Last Checked: May 05, 2026 at 10:07 PM

#10 Federal

Preliminary hard and soft bottom seafloor substrate map derived from an unsupervised classification of gridded backscatter and bathymetry derivatives at Ofu and Olosega Islands, Territory of American Samoa, USA.

Organization: National Oceanic and Atmospheric Administration, Department of Commerce
Dataset Last Updated: October 13, 2010 at 12:00 AM

Preliminary hard and soft seafloor substrate map derived from an unsupervised classification of multibeam backscatter and bathymety derivatives at Ofu and Olosega Islands, Territory of American...

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Search relevance: 1.00 | Views last month: 2 | Catalog Last Checked: May 05, 2026 at 09:28 PM

#11 Federal

American Samoa: Projected sea-level rise flooding inundation extents for 0.00, +0.25, +0.50, +1.00-, +1.50-, +2.00-, and +3.00-meter sea-level rise scenarios (ver. 1.1, February 2025)

Organization: Department of the Interior
Dataset Last Updated: March 25, 2026 at 12:00 AM

This data release provides flooding extent polygons based on sea-level rise (SLR) water levels for the coast of American Samoa's most populated islands of Tutuila, Ofu-Olosega, and Ta'u. Digital...

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Search relevance: 1.00 | Views last month: 2 | Catalog Last Checked: May 05, 2026 at 09:16 PM

#12 Federal

Bathymetric Position Index (BPI) Zones 5 m grid derived from gridded bathymetry of Ofu and Olosega Islands, Territory of American Samoa, USA.

Organization: National Oceanic and Atmospheric Administration, Department of Commerce
Dataset Last Updated: April 28, 2010 at 12:00 AM

BPI Zones are derived from a focal mean analysis on bathymetry and slope. The grid is based on gridded (5 m cell size) multibeam bathymetry, collected aboard R/V AHI, merged with seafloor depths...

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Search relevance: 1.00 | Views last month: 1 | Catalog Last Checked: May 05, 2026 at 09:28 PM

#13 Federal

USGS Archive of Computed tomography (CT) Scans of Coral Cores

Organization: Department of the Interior
Dataset Last Updated: February 09, 2026 at 12:00 AM

This data release presents computed tomography (CT) imagery generated from coral core samples curated within the U.S. Geological Survey (USGS) Coral-Core Archive. These data were collected as part...

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Search relevance: 1.00 | Views last month: 1 | Catalog Last Checked: May 05, 2026 at 08:02 PM

#14 Federal

Status of coral communities in American Samoa: a survey of long-term monitoring sites, 1992-2002

Organization: National Oceanic and Atmospheric Administration, Department of Commerce
Dataset Last Updated: January 26, 2026 at 12:00 AM

This dataset includes data from surveys of coral communities in the American Samoa Archipelago covering the island of Tutuila and the Manu'a Group of islands (Ofu, Olosega, and Tau) in 1995, 1998,...

Search relevance: 1.00 | Views last month: 1 | Catalog Last Checked: May 29, 2026 at 10:54 PM

#15 Federal

USGS Thermal Tower Reef Camera Timestack, Papaloloa, Ofu, American Samoa

Organization: Department of the Interior
Dataset Last Updated: March 03, 2025 at 12:00 AM

A digital thermal camera was installed at Papaloloa reef on Ofu, American Samoa and faced west along the beach. Every minute from February 3, 2020, to August 1, 2020, the camera collected raw...

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Search relevance: 1.00 | Views last month: 0 | Catalog Last Checked: May 05, 2026 at 08:24 PM

#16 Federal

Major and trace element geochemistry data for hydrothermal manganese oxide rocks from the Samoa hotspot region in the South Pacific Ocean collected during research expedition KM0506

Organization: Department of the Interior
Dataset Last Updated: January 22, 2026 at 12:00 AM

Hydrothermal manganese oxide rocks were collected via dredge from the Tulaga Seamount, the flank of Ofu Island, and from Soso seamount in the Samoa hotspot region offshore American Samoa during...

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Search relevance: 1.00 | Views last month: 0 | Catalog Last Checked: May 05, 2026 at 08:51 PM

#17 Federal

Water and algal chemistry measurements collected from the National Park Service's National Park of American Samoa (NPS-NPSA) Ofu Island unit

Organization: Department of the Interior
Dataset Last Updated: July 17, 2025 at 12:00 AM

Geochemical analysis of coastal springs and possible source waters were conducted in the National Park Service's National Park of American Samoa (NPS-NPSA) Ofu Island unit. Water samples were...

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Search relevance: 1.00 | Views last month: 0 | Catalog Last Checked: May 05, 2026 at 09:38 PM

#18 Federal

X-ray diffraction data for hydrothermal manganese oxide rocks from the Samoa hotspot region in the South Pacific Ocean collected during research expedition KM0506

Organization: Department of the Interior
Dataset Last Updated: January 22, 2026 at 12:00 AM