High-resolution seismic profiles from the U.S. 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.
  • ID not available.
gov.noaa.ngdc.mgg.seismic:KNOX17RR_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
  • Raw Knudsen SEG-Y Datagram
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
Coverage Description Downloadable Data
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
N: 41.52391
S: 26.08867
E: -67.79207
W: -80.12014
Spatial Coverage Map
Associated Resources
Publication Dates
  • publication: 2012-12-14
Data Presentation Form SEG-Y KNUDSEN 320BR CHIRP SUBBOTTOM 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 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.
Use Limitations
  • While every effort has been made to ensure that these data are accurate and reliable within the limits of the current state of the art, UNH/CCOM-JHC : Center for Coastal and Ocean Mapping/Joint Hydrographic Center, University of New Hampshire cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. UNH/CCOM-JHC : Center for Coastal and Ocean Mapping/Joint Hydrographic Center, University of New Hampshire makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty.
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
Acknowledgments
  • Center for Coastal & Ocean Mapping, University of New Hampshire
Theme keywords subbottom
  • high-resolution CHIRP
  • seismic
  • 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
Use Constraints
  • Use Constraints: None
Access Constraints
  • Access Constraints: None
Fees
  • None
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: 2017-12-21
For questions about the information on this page, please email: Jennifer.Jencks@noaa.gov