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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. MGL1111 trackline centerdepth
  5. MGL1111centerdepth.shp: Multibeam bathymetry data collected by the U.S. Geological Survey in the Bering Sea in 2011 during cruise MGL1111, along-track center-beam depths extracted from 100-meter gridded data in shapefile format, geographic coordinates

MGL1111centerdepth.shp: Multibeam bathymetry data collected by the U.S. Geological Survey in the Bering Sea in 2011 during cruise MGL1111, along-track center-beam depths extracted from 100-meter gridded data in shapefile format, geographic coordinates

Dates

Publication Date
Start Date
2011-08-10
End Date
2011-09-02

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 shapefile contains center-beam depths for approximately 5727 trackline kilometers of Simrad EM122 multibeam-bathymetry data collected in the Bering Sea during U.S. Geological Survey - Coastal and Marine Geology Program cruise MGL1111 aboard the R/V Marcus G. Langseth. The depth values were extracted from gridded data which were reduced for position, elevation, orientation, water-column sound-speed, and refraction effects.

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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MGL1111bathy.jpg
“MGL1111 multibeam bathymetry, Bering Sea” 		thumbnail 37.16 KB image/jpeg
Shapefile: MGL1111centerdepth.zip
MGL1111centerdepth.shp.xml
Original FGDC Metadata
View 		26.64 KB
MGL1111centerdepth.sbx 157.67 KB
MGL1111centerdepth.shp 53.38 MB
MGL1111centerdepth.shx 15.25 MB
MGL1111centerdepth.CPG 5 Bytes
1.65 GB
MGL1111centerdepth.prj 145 Bytes
MGL1111centerdepth.sbn 15.89 MB

Purpose

In August 2011, the U.S. Geological Survey (USGS) 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).
MGL1111 multibeam bathymetry, Bering Sea
MGL1111 multibeam bathymetry, Bering Sea

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boundingBox
minY53.995428
minX-179.999956
maxY58.820824
maxX179.999955
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dateUploadedThu Aug 25 11:02:40 MDT 2022
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