CHIRP high-resolution seismic profiles from U.S. Gulf of Alaska continental margin

Knudsen 320BR CHIRP data collected simultaneously with multibeam
bathymetry and acoustic backscatter.
Cite this dataset when used as a source.
  • ID not available.
gov.noaa.ngdc.mgg.seismic:km0514_SubbottomProfiler
Search Data
  • Geophysical Survey Data Viewer (search)
    An interactive map of tracklines providing access to marine geophysical survey data (bathymetry, gravity, magnetics, seismics), and aeromagnetic surveys in the archive.
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Distribution Formats
  • binary
Distributor User Services
DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
303-497-6826
ngdc.info@noaa.gov
Dataset Point of Contact James V. Gardner
Research Professor
UNH/CCOM-JHC : Center for Coastal and Ocean Mapping/Joint Hydrographic Center, University of New Hampshire
(603) 862-3473
jim.gardner@unh.edu
Time Period 2005-06-24 to 2005-09-01
Spatial Bounding Box Coordinates
N: 58.76570
S: 21.18767
E: -134.24066
W: -157.97037
Spatial Coverage Map
Associated Resources
Publication Dates
  • publication: 2009-01-01
Data Presentation Form KNUDSEN 320BR CHIRP DATA
Dataset Progress Status Complete - production of the data has been completed
Data Update Frequency As needed
Purpose The National Oceanic and Atmospheric Administration (NOAA), on behalf of the United States Government, has a requirement to carry out surveys of specific regions on the U.S. Gulf of Alaska continental margin in order to obtain multibeam bathymetry. In addition, high-resolution CHIRP seismic profiles were continuously collected and processed during the cruise. These data are required to support any potential claim for extended jurisdiction by the United States under United Nations Convention on the Law of the Sea (UNCLOS) Article 76. The requirement is for the collection and processing of full-coverage multibeam sonar data in water depths of approximately 1500 to 4500 m in order to precisely define the location of the 2500-m isobath and the "foot of the slope" as defined under UNCLOS Article 76. As part of their NOAA-funded research program, University of New Hampshire (UNH) researchers oversaw data acquisition, processing and archiving of the data collected during the cruise.
Originators
  • Center for Coastal & Ocean Mapping, University of New Hampshire
Publishers
  • DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
Theme keywords Bathymetry
  • high-resolution CHIRP
  • Bathymetry
  • EARTH SCIENCE > OCEANS > MARINE GEOPHYSICS > PLATE TECTONICS
  • EARTH SCIENCE > OCEANS > OCEAN ACOUSTICS > ACOUSTIC REFLECTIVITY
  • EARTH SCIENCE > OCEANS > OCEAN ACOUSTICS > ACOUSTIC VELOCITY
Global Change Master Directory (GCMD) Service Keywords
  • DATA ANALYSIS AND VISUALIZATION > GEOGRAPHIC INFORMATION SYSTEMS > WEB-BASED GEOGRAPHIC INFORMATION SYSTEMS
  • DATA MANAGEMENT/DATA HANDLING > DATA SEARCH AND RETRIEVAL
  • DATA ANALYSIS AND VISUALIZATION > VISUALIZATION/IMAGE PROCESSING
Data Center keywords Global Change Master Directory (GCMD) Data Center Keywords
  • DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
  • DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
Place keywords Unknown
  • U.S. Gulf of Alaska continental margin
  • continental slope
  • Foot of the Slope
Use Constraints
  • Use Constraints: None
Access Constraints
  • Access Constraints: None
Fees
  • None
Lineage information for: series
Processor
  • Center for Coastal & Ocean Mapping, University of New Hampshire
Processing Steps
  • Processed between October 2006-November, 2007
Source Datasets
  • processed Knudsen 320BR CHIRP bathymetry data
    • Description of Source: Source Contribution: Source Type: digital
    • Time Instant: 9999-01-01
Lineage information for: repository
Processing Steps
  • 2015-04-22T00:00:00 - NOAA created the National Centers for Environmental Information (NCEI) by merging NOAA's National Climatic Data Center (NCDC), National Geophysical Data Center (NGDC), and National Oceanographic Data Center (NODC), including the National Coastal Data Development Center (NCDDC), per the Consolidated and Further Continuing Appropriations Act, 2015, Public Law 113-235. NCEI launched publicly on April 22, 2015.
Acquisition Information (collection)
Instrument
  • Knudsen 320 B/R
  • Kongsberg EM122
  • Knudsen CHIRP 3260
  • Kongsberg EM710
  • Sea-Bird SBE 9
Platform
  • Kilo Moana (KM)
Operation
  • KM0514
Last Modified: 2015-08-12
For questions about the information on this page, please email: Jennifer.Jencks@noaa.gov