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Multibeam bathymetry and acoustic backscatter data from the Alaskan region, Extended Continental Shelf Project, 2011 field season: Gulf of Alaska and Bering Sea

Organization: Department of the Interior
Updated: 20220825 | Harvested: July 18, 2025 at 08:57 AM

This publication releases swath bathymetry and backscatter datasets derived from multibeam bathymetric data acquired by the U.S. Geological Survey (USGS) on the R/V Marcus G. Langseth legs MGL1108...

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Oceanographic data collected during the Gulf of Alaska 2004 Expedition (alaska2004) on RV Atlantis in Gulf of Alaska from 2004-07-30 to 2004-08-23 (NCEI Accession 0072310)

Organization: National Oceanic and Atmospheric Administration, Department of Commerce
Updated: 2023-05-26T00:00:00.000+00:00 | Harvested: October 03, 2025 at 08:20 PM

The 2004 Gulf of Alaska Seamount Expedition will use the deep submergence vehicle (DSV) Alvin to explore five large seamounts. Giacomini, Pratt, Welker, Denson, and Dickens seamounts stretch over...

MGL1109shadeutm.tif: Multibeam bathymetry data collected by the U.S. Geological Survey in the Gulf of Alaska in 2011 during cruise MGL1109, 100-meter gray-shaded relief

Organization: Department of the Interior
Updated: 20220825 | Harvested: July 18, 2025 at 08:50 AM

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...

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MGL1109backsgeo.sd: 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 Fledermaus digital terrain format, geographic coordinate system

Organization: Department of the Interior
Updated: 20220825 | Harvested: July 18, 2025 at 08:52 AM

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...

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MGL1109bathygeo.sd: 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 Fledermaus digital terrain format, geographic coordinates

Organization: Department of the Interior
Updated: 20220825 | Harvested: July 18, 2025 at 09:03 AM

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...

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xml

MGL1109bathyutm.sd: 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 Fledermaus digital terrain format, UTM 6 coordinates

Organization: Department of the Interior
Updated: 20220825 | Harvested: July 18, 2025 at 08:55 AM

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...

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xml

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, depth format, geographic coordinates

Organization: Department of the Interior
Updated: 20220825 | Harvested: July 18, 2025 at 08:59 AM

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...

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MGL1109centerdepth.txt: Multibeam bathymetry data collected by the U.S. Geological Survey in the Gulf of Alaska in 2011 during cruise MGL1109, along-track center-beam depths extracted from 100-meter gridded data in plain text format, geographic coordinates

Organization: Department of the Interior
Updated: 20220825 | Harvested: July 18, 2025 at 08:31 AM

This text file contains center-beam depths for approximately 5804 trackline kilometers of Simrad EM122 multibeam-bathymetry data collected in the Gulf of Alaska during U.S. Geological Survey...

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MGL1109backsutm.asc: 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 Esri gridascii format, UTM 6 coordinates

Organization: Department of the Interior
Updated: 20220825 | Harvested: July 18, 2025 at 09:00 AM

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...

xml
xml

MGL1109backsgeo.xyb: 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 XYB (longitude, latitude, backscatter) format, geographic coordinate system

Organization: Department of the Interior
Updated: 20220825 | Harvested: July 18, 2025 at 08:51 AM

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...

xml
xml

MGL1109backsgeo.asc: 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 Esri gridascii format, geographic coordinate system

Organization: Department of the Interior
Updated: 20220825 | Harvested: July 18, 2025 at 09:02 AM

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...

xml
xml

MGL1109bathygeo.tif: 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 GeoTIFF format, geographic coordinates

Organization: Department of the Interior
Updated: 20220825 | Harvested: July 18, 2025 at 08:57 AM

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...

xml
xml

MGL1109bathygeo.asc: 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 Esri gridascii format, geographic coordinates.

Organization: Department of the Interior
Updated: 20220825 | Harvested: July 18, 2025 at 08:54 AM

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...

xml
xml

MGL1109centerdepth.shp: Multibeam bathymetry data collected by the U.S. Geological Survey in the Gulf of Alaska in 2011 during cruise MGL1109, along-track center-beam depths extracted from 100-meter gridded data in shapefile format, geographic coordinates

Organization: Department of the Interior
Updated: 20220825 | Harvested: July 18, 2025 at 08:52 AM

This shapefile contains center-beam depths for approximately 5804 trackline kilometers of Simrad EM122 multibeam-bathymetry data collected in the Gulf of Alaska during U.S. Geological Survey...

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MGL1109bathyutm.bag: 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 Esri bathymetric attributed grid, UTM 6 coordinates

Organization: Department of the Interior
Updated: 20220825 | Harvested: July 18, 2025 at 08:49 AM

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...

xml
xml

MGL1109bathyutm.asc: 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 Esri gridascii, UTM 6 coordinates

Organization: Department of the Interior
Updated: 20220825 | Harvested: July 18, 2025 at 08:58 AM

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...

xml
xml

MGL1109backsutm.sd: 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 Fledermaus digital terrain format, UTM 6 coordinates

Organization: Department of the Interior
Updated: 20220825 | Harvested: July 18, 2025 at 08:56 AM

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...

xml
xml

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

Organization: Department of the Interior
Updated: 20220825 | Harvested: July 18, 2025 at 09:02 AM

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...

xml
xml

MGL1109backutm.xyb: 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 x_utm, y_utm, and backscatter (decibel) format, UTM 6 coordinates

Organization: Department of the Interior
Updated: 20220825 | Harvested: July 18, 2025 at 09:03 AM

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...

xml
xml

MGL1109bathyutm.tif: 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 GeoTIFF format, UTM 6 coordinates

Organization: Department of the Interior
Updated: 20220825 | Harvested: July 18, 2025 at 08:52 AM

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...

xml
xml

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