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  2. Pacific Coastal and Marine Science Center
  3. Multibeam bathymetry and acoustic backscatter from the Alaskan region, Extended Continental Shelf Project, 2011 field season: Gulf of Alaska and Bering Sea
  4. MGL1109 multibeam bathymetry in geographic coordinates
  5. MGL1109bathygeo.xyz: Multibeam bathymetry data collected by the U.S. Geological Survey in the Gulf of Alaska in 2011 during cruise MGL1109, 100-meter gridded data in longitude, latitude, and depth format, geographic coordinates

MGL1109bathygeo.xyz: Multibeam bathymetry data collected by the U.S. Geological Survey in the Gulf of Alaska in 2011 during cruise MGL1109, 100-meter gridded data in longitude, latitude, and depth format, geographic coordinates

Dates

Publication Date
Start Date
2011-06-03
End Date
2011-06-25

Citation

Barth, G.A., Baldwin, W.E., Reece, R.S., Gulick, S.S., Danforth, W.W., and Wong, F.L., 2022, Multibeam bathymetry and acoustic backscatter from the Alaskan region, Extended Continental Shelf Project, 2011 field season: Gulf of Alaska and Bering Sea: U.S. Geological Survey data release, https://doi.org/10.5066/F7HM56HK.

Summary

This raster dataset represents approximately 69,060 square kilometers of Simrad EM122 multibeam-bathymetry data collected in the Gulf of Alaska during U.S. Geological Survey - Coastal and Marine Geology Program cruise MGL1109 aboard the R/V Marcus G. Langseth. The data have been reduced for position, elevation, orientation, water-column sound-speed, and refraction effects.Format: 100-meter gridded data in longitude, latitude, and depth format, geographic coordinates.

Contacts

Point of Contact :
Pacific Coastal and Marine Science Center
Originator :
Ginger Barth, Wayne E Baldwin, Robert S Reece, Sean S Gulick, William W Danforth, Florence L Wong
Metadata Contact :
PCMSC Science Data Coordinator
Publisher :
U.S. Geological Survey
USGS Mission Area :
Natural Hazards
SDC Data Owner :
Pacific Coastal and Marine Science Center
Distributor :
U.S. Geological Survey - ScienceBase

Attached Files

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MGL1109bathygeo.xyz.xml
Original FGDC Metadata
View 		20.3 KB application/fgdc+xml
MGL1109bathygeo.prj 120 Bytes text/plain
MGL1109bathygeo.xyz 236.96 MB chemical/x-xyz
MGL1109bathy.jpg
“MGL1109 multibeam bathymetry, Gulf of Alaska” 		thumbnail 48.54 KB image/jpeg

Purpose

In June 2011, the U.S. Geological Survey - Coastal and Marine Geology Program conducted a research cruise in the Gulf of Alaska aboard the R/V Marcus G. Langseth (Lamont-Doherty Earth Observatory, Columbia University) as part of the U.S. Extended Continental Shelf Project. The mission focused primarily on obtaining geophysical data (multichannel and CHIRP seismic reflection, ocean bottom seismometry, multibeam bathymetry, sonobuoy, XBT and XCTD) for the purposes of determining geologic framework, crustal nature, and sediment thickness in support of delineating the U.S. Extended Continental Shelf under provisions contained in Article 76 of the United Nations Convention on the Law of the Sea (UNCLOS).
MGL1109 multibeam bathymetry, Gulf of Alaska
MGL1109 multibeam bathymetry, Gulf of Alaska

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  • Pacific Coastal and Marine Science Center

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