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USGS Coastal and Marine Geology Program

Field Activity Details for field activity 2015-651-FA

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AKA: none

Other ID: none

Status: Completed

Organization(s): USGS, Pacific Coastal and Marine Science Center

Funding Program(s): Coastal and marine earthquake, tsunami, and landslide active margin field studies (ZP00EQV)

Principal Investigator(s): Daniel Brothers

Affiliate Investigator(s):

Information Specialist(s): James Conrad

Data Type(s): Location-Elevation: Navigation, Seismics: Multichannel, Seismics: Sub Bottom Profiler

Scientific Purpose/Goals: mapping; sub bottom data Queen Charlotte Fairweather fault

Vehicle(s):

Start Port/Location:

End Port/Location:

Start Date: 2015-08-01

End Date: 2015-08-25

Equipment Used: navigation, Multichannel, Other, 512 chirp, 512 chirp-source

Information to be Derived: sub bottom data Queen Charlotte Fairweather fault

Summary of Activity and Data Gathered: Gyre2015 Raw and Processed data submitted to FAD 10/6/2015

Staff:

Affiliate Staff:

Notes:

Location:

AK

Boundaries
North: 59.06527196 South: 57.66358556 West: -138.0440712 East: -134.46681976

Platform(s):

photo of Alaskan Gyre
Alaskan Gyre

Publications

Balster-Gee, A.F., Brothers, D.S., Conrad, J.E., Kluesner, J.W., Hart, P.E., and Haeussler, P.J., 2017, Multichannel minisparker and chirp seismic-reflection data of field activity 2015-651-FA; Chatham Strait and Cross Sound, southeastern Alaska from 2015-08-03 to 2015-08-21: U.S. Geological Survey data release.

Portals/Viewers

Data Acquired

Survey EquipmentSurvey InfoData Type(s)Data Collected
navigation --- Navigation
Multichannel --- Multichannel
Multichannel minisparker seismic-reflection data of field activity 2015-651-FA, Chatham Strait and Cross Sound, southeastern Alaska from 2015-08-03 to 2015-08-21 (This data release contains high-resolution multichannel seismic (MCS) reflection data collected in August of 2015 to explore marine geologic hazards of inland waterways of southeastern Alaska. Sub-bottom profiles were acquired in the inland waters between Glacier Bay and Juneau, including Cross Sound and Chatham Strait. High-resolution seismic-reflection profiles were acquired to assess evidence for active seabed faulting and submarine landslide hazards. The data were collected aboard the US Geological Survey R/V Alaskan Gyre. The seismic-reflection data were acquired using a 500-Joule minisparker source and a 48-channel Geometrics GeoEel digital streamer. Subbottom acoustic penetration spans up to several hundreds of meters, and is variable by location. This data release contains CMP sorted digital data in SEG-Y format. This data release will be updated as subsequent lines of data from this field activity are published.)
Other --- --- ---
512 chirp --- Sub Bottom Profiler
Chirp seismic-reflection data of field activity 2015-651-FA, Chatham Strait and Cross Sound, southeastern Alaska from 2015-08-03 to 2015-08-21 (This data release contains high-resolution seismic reflection data collected in August of 2015 to explore marine geologic hazards of inland waterways of southeastern Alaska. Sub-bottom profiles were acquired in the inland waters between Glacier Bay and Juneau, including Cross Sound and Chatham Strait. High-resolution seismic-reflection profiles were acquired to assess evidence for active seabed faulting and submarine landslide hazards. The data were collected aboard the US Geological Survey R/V Alaskan Gyre. The seismic-reflection data were acquired using a tow-fish Edgetech 512 chirp subbottom profiler. Subbottom acoustic penetration spans up to several tens of meters, and is variable by location. This data release contains processed digital SEG-Y. This data release will be updated as subsequent lines of data from this field activity are published.)
512 chirp-source --- Sub Bottom Profiler

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