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Dataset Overview | National Centers for Environmental Information (NCEI)

High-Resolution Seismic Profiles from the US Atlantic Continental Margin Atlantic

Knudsen 320BR CHIRP subbottom data collected simultaneously with multibeam bathymetry and acoustic backscatter.
Cite this dataset when used as a source.
  • NCEI Metadata ID: gov.noaa.ngdc.mgg.seismic:KNOX17RR_SubbottomProfiler
gov.noaa.ngdc.mgg.seismic:KNOX17RR_SubbottomProfiler
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Search Data
  • Trackline Geophysical 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.
Order Data
Distribution Formats
  • Raw Knudsen SEG-Y Datagram
Ordering Instructions Contact NCEI for other distribution options and instructions.
Distributor NOAA National Centers for Environmental Information
ncei.info@noaa.gov
Dataset Point of Contact NOAA National Centers for Environmental Information
ncei.info@noaa.gov
Dataset Point of Contact Jennifer Jencks
NOAA National Centers for Environmental Information
303 497-6419
Jennifer.Jencks@noaa.gov
Time Period 2008-05-02 to 2008-05-31
Spatial Reference System urn:ogc:def:crs:EPSG::4326urn:ogc:def:crs:EPSG::5831
Spatial Bounding Box Coordinates
West: -80.12014
East: -67.79207
South: 26.08867
North: 41.52391
Spatial Coverage Map
General Documentation
Associated Resources
Publication Dates
  • publication: 2012-12-14
Dataset Progress Status Complete - production of the data has been completed
Historical archive - data has been stored in an offline storage facility
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 the U.S. Atlantic continental margin in order to obtain multibeam bathymetry. In addition, high-resolution CHIRP seismic profiles were continuously collected and processed during the cruises. 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 5000 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 all the data collected during the cruise.
Cited Authors
  • UNH Center for Coastal and Ocean Mapping/Joint Hydrographic Center (CCOM/JHC)
Publishers
  • NOAA National Centers for Environmental Information
Acknowledgments
  • Center for Coastal & Ocean Mapping, University of New Hampshire
Theme keywords Uncontrolled
  • high-resolution CHIRP
  • seismic
Global Change Master Directory (GCMD) Science Keywords
  • 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
  • UNH/CCOM-JHC > Center for Coastal and Ocean Mapping - Joint Hydrographic Center, University of New Hampshire
Use Constraints
  • Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose.
Access Constraints
  • Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives.
Fees
  • In most cases, electronic downloads of the data are free. However, fees may apply for custom orders, data certifications, copies of analog materials, and data distribution on physical media.
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 CHIRP 3260
  • Kongsberg EM122
Platform
  • Roger Revelle (RR)
Operation
  • KNOX17RR
Last Modified: 2020-05-07
For questions about the information on this page, please email: ncei.info@noaa.gov