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Spatial Extent of Data

USGS Data Source

USGS Thesaurus Keywords

sidescan sonar, sea-floor acoustic reflectivity, sea-floor characteristics, marine geophysics, image mosaics

ISO 19115 Topic Category

geoscientificInformation, oceans, imageryBaseMapsEarthCover

Other Subject Keywords

physical habitats and geomorphology, GLORIA > Geological Long-Range Inclined ASDIC, Exclusive Economic Zone, Exclusive Economic Zone (EEZ), Infobank identifier F-3-87-AA, grey scale image, Marine Oceanic, Tectonic Trench, Oceans > Ocean Acoustics > Acoustic Reflectivity, Continental/Island Slope, backscatter, Coastal and Marine Geology Program, distributions, Marine Basin Floor, marine geology, sidescan sonar, CMGP, GeoTIFF image, Infobank identifier F-7-88-AA, WCMG, GLORIA, Western Coastal and Marine Geology, SIDE-SCAN SONAR, ACOUSTIC RECEIVERS, EEZ, Infobank identifier F-8-88-AA, sidescan-sonar mosaic, Geological LOng-Range Inclined Asdic, marine geophysics, Infobank identifier F-2-87-AA, acoustic reflectivity, seabed, U.S. Geological Survey, USGS

Place Keywords

Ocean > Pacific Ocean > North Pacific Ocean > Aleutian Arc, Zodiac Fan, Stalemate Ridge, Ocean > Pacific Ocean > North Pacific Ocean, Amchitka Island, Bowers Basin, Aleutian Arc, Ocean > Pacific Ocean, Alaska, Bowers Ridge, Aleutian Islands Ecoregion, Aleutian Trench

AA_Q29.TIF - Aleutian Arc U.S. EEZ GLORIA sidescan-sonar data mosaic (29 of 31) (LCC, 50 m, WGS84)

During late July through September 1987 and June and July 1988 the U.S. Geological Survey (USGS) conducted four cruises to cover the U.S. Exclusive Economic Zone (EEZ) region of the Aleutian Arc. As in earlier EEZ reconnaissance surveys, the USGS utilized the GLORIA (Geological LOng-Range Inclined Asdic) sidescan-sonar system to complete the geologic mapping. The collected GLORIA data were processed and digitally mosaicked to produce continuous imagery of the seafloor. A total of 31 digital mosaics of a 3 degree by 3 degree (or smaller) area with a 50-meter pixel resolution were completed for the region.

Get Data and Metadata
Author(s) U.S. Geological Survey
Publication Date 2011
Beginning Date of Data 1987-07-28
Ending Date of Data 1988-08-02
Data Contact
Florence Wong
DOI This item doesn't have a registered DOI.
Citation Check repository for data citation.
Metadata Contact
Valerie Paskevich
Metadata Date 2021-11-11
Related Publication
Citations of these data No citations of these data are known at this time.
Access public
License http://www.usa.gov/publicdomain/label/1.0/
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Harvest Source: Coastal and Marine Geoscience Data System
Harvest Date: 2025-01-22T04:21:20.072Z