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  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 acoustic backscatter in UTM coordinates
  5. MGL1109backutm.tif: Multibeam backscatter data collected by the U.S. Geological Survey in the Gulf of Alaska in 2011 during cruise MGL1109, 100-meter gridded data in GeoTIFF format, UTM 6 coordinates

MGL1109backutm.tif: Multibeam backscatter data collected by the U.S. Geological Survey in the Gulf of Alaska in 2011 during cruise MGL1109, 100-meter gridded data in GeoTIFF format, UTM 6 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-backscatter data collected in the Gulf of Alaska during U.S. Geological Survey (USGS) 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.

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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MGL1109backscat.jpg
“MGL1109 acoustic backscatter, Gulf of Alaska” 		thumbnail 50.2 KB image/jpeg
Extension: MGL1109backsutm.zip
MGL1109backsutm.tif.xml
Original FGDC Metadata
View 		23.04 KB
MGL1109backsutm.tif-ColorRamp.SLD 2.07 KB
MGL1109backsutm.tfw 94 Bytes
MGL1109backsutm.tif 12.54 MB

Purpose

In June 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).
MGL1109 acoustic backscatter, Gulf of Alaska
MGL1109 acoustic backscatter, Gulf of Alaska

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Additional Information

Raster Extension

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minY48.255660245646595
minX-152.55518300549696
maxY57.81437868607708
maxX-135.65774156795186
files
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dateUploadedFri Oct 02 15:53:10 MDT 2015
nameMGL1109backsutm.tif
contentTypeimage/geotiff
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size13146423
dateUploadedFri Oct 02 15:53:10 MDT 2015
nameMGL1109backsutm.tif-ColorRamp.SLD
contentTypeapplication/sld+xml
pathOnDisk__disk__da/a2/2e/daa22e02c3fb0002708eb3e7a4862a0736dc4488
size2122
dateUploadedFri Oct 02 15:53:25 MDT 2015
nameMGL1109backsutm.tif.xml
contentTypeapplication/fgdc+xml
pathOnDisk__disk__d6/3d/0e/d63d0e789301c85f8b302f33230ff16200f7088f
dateUploadedThu Aug 25 11:02:47 MDT 2022
originalMetadatatrue
checksum
value445479a8bd7a1f94a56766c06ecff2b8
typeMD5
nameMGL1109backsutm
nativeCrsEPSG:32606
rasterTypeGeoTIFF

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