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Coastal and Marine Geology Program > Online Science Resource Locator > Sonar Mapping - Hawaii

Sonar Mapping - Hawaii

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Sonar Mapping:
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Sonar mapping of the sea floor provides CMG researchers with very useful data. Some sonar systems map the topography of the sea floor by recording large swaths of depth measurements. Others collect information useful in determining the geologic makeup of the sea floor and the sub-surface structure.

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Items below are listed from most recently updated to least recently updated.

These are results 1 through 16 of 16 matches.

Publication
Seafloor Studies of Mamala Bay, Honolulu, Hawaii - USGS Fact Sheet
Description: Disposal of dredge spoils in the near offshore area, coupled with the rapid growth of Honolulu and other nearby municipalities, has placed increased stress on the environment of Mamala Bay. No satisfactory bathymetric map of the seafloor had existed, and little information has been compiled about the effects of these activities to determine whether modifications to the operation and management of the designated dump sites and sewage outfall locations were necessary.
updated: 2004-03-02 pages include:

Research Project
Pacific Sea-Floor Mapping
Description: Images of the sea floor off the coasts of California, Hawaii, Gulf of Mexico, and Lake Tahoe. Backscatter and swath bathymetry, regular and in 3-D!
updated: 2003-10-29 pages include:

Publication
New Mapping Techniques Help Assess the Health of Hawai'i's Coral Reefs | USGS Fact Sheet 084-01
Description: More than 60% of coral reefs in U.S. waters are found in the extended Hawaiian Island chain. These complex and diverse marine ecosystems are not only ecologically important but also provide hundreds of millions of dollars annually to Hawai‘i’s economy. Elsewhere in the world, corals are dying at unprecedented rates, and the reefs of Hawai‘i may also be at risk. To monitor and protect these reefs and to help understand what is threatening coral-reef habitats worldwide, U.S. Geological Survey (USGS) and other scientists are using new techniques to create detailed maps of Hawai‘i’s coral reefs.
updated: 2003-03-18 pages include:

Publication
Exposing the Sea Floor: High-Resolution Multibeam Mapping Along the U.S. Pacific Coast, USGS Fact Sheet 013-00
Description: PDF file
updated: 2003-03-18 pages include:

Educational Materials
USGS TerraWeb for Kids!
Description: Satellite and sonar images, remote sensing education, and activities just for KIDS!
updated: 2001-08-01 pages include:

Data Set
Hawaiian Islands GLORIA Imagery
Description: GLORIA sidescan sonar imagery of the Hawaiian Islands, showing index map and downloadable quadrangles of sea-floor imagery.
updated: 2001-07-19 pages include:

Data Set
Global Inventory of Natural Gas Hydrate Occurance
Description: This updated global inventory reports on natural gas hydrate recovered from 20 places worldwide and includes 79 places where the presence of gas hydrate has been inferred from geophysical, geochemical, or geological evidence.
updated: 2001-01-09 pages include:

General Information
Education and Outreach Information
Description: Helpful information about Activities at the USGS Western Region Coastal and Marine Geology Team.
updated: 2000-11-20 pages include:

Educational Materials
GLORIA Imagery of the Exclusive Economic Zone of the USA
Description: USGS research using GLORIA sidescan sonar to map the sea floor within the 200-mile wide Exclusive Economic Zone.
updated: 2000-07-12 pages include:

General Information
El Niño Home Page
Description: El Niño information with links to a broad range of topics such as Floods, Landslides, Coastal Hazards, Climate, News Releases.
updated: 2000-01-31 pages include:

Research Project
Mamala Bay Dredge Disposal Studies
Description: Fate of Dredge Disposal Material and Polluted Sediment, Offshore Honolulu, Hawaii
updated: 1999-09-13 pages include:

Publication
High-Resolution Multibeam Survey off Honolulu, Hawaii
Description: AGU Abstract on sonar mapping survey of seafloor off Honolulu Hawaii
updated: 1999-08-09 pages include:

Publication
Sea-Floor Geology of a Part of Mamala Bay, Hawaii
Description: Journal article discussing mapping survey off Honolulu Hawaii including sidescan sonar images, 3.5-kHz profiles, video and still visual images, and box-core samples
updated: 1997-10-08 pages include:

Publication
OFR 95-839: Sediment Chemistry and Biological Sampling off Honolulu
Description: Cruise Report of mapping dredge disposal area off Honolulu, Hawaii
updated: 1997-10-08 pages include:

Publication
OFR 95-17: Acoustic Mapping of Disposal Sites off Honolulu
Description: Final report in series of analyses studying environmental impact of dredge-material disposal offshore of Honolulu
updated: 1997-10-08 pages include:

Publication
Bottom Characteristics of an Ocean Disposal Site off Honolulu, Hawaii
Description: ESRI Conference Presentation Using Time-based Navigational Trackline Data Managed by Routes and Events
updated: 1997-10-01 pages include:

These are results 1 through 16 of 16 matches.

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Coastal and Marine Geology Program > Online Science Resource Locator > Sonar Mapping - Hawaii