Raw Knudsen Engineering 320 BR CHIRP subbottom data for the U.S. Mendocino Ridge.

Knudsen Engineering 320 BR CHIRP subbottom data were collected in the Raw Knudsen SEG-Y Datagram format.
Cite this dataset when used as a source.
  • ID not available.
gov.noaa.ngdc.mgg.seismic:AT26-21_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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Other Access
Distribution Formats
  • Raw Knudsen SEG-Y Datagram
    • File Compression: None (transfer size in MB)
Distributor Distributor information not available
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 0001_2014_266_2102_LF_000
Time Period 2014-09-23T21:02:06 to 2014-10-11T15:01:11; 2014-09-23T21:02:06 to 2014-09-23T21:48:46; 2014-09-23T21:48:48 to 2014-09-23T22:36:52; 2014-09-23T22:36:54 to 2014-09-23T23:27:23; 2014-09-23T23:27:26 to 2014-09-24T00:23:19; 2014-09-24T00:23:22 to 2014-09-24T01:19:28; 2014-09-24T01:19:35 to 2014-09-24T02:01:24; 2014-09-24T02:01:28 to 2014-09-24T02:43:16; 2014-09-24T02:43:20 to 2014-09-24T03:28:20; 2014-09-24T03:28:24 to 2014-09-24T04:16:42; 2014-09-24T04:16:47 to 2014-09-24T05:05:05; 2014-09-24T05:05:10 to 2014-09-24T05:53:28; 2014-09-24T05:53:33 to 2014-09-24T05:59:59; 2014-09-24T06:00:09 to 2014-09-24T06:48:27; 2014-09-24T06:48:32 to 2014-09-24T07:36:50; 2014-09-24T07:36:55 to 2014-09-24T08:25:12; 2014-09-24T08:25:17 to 2014-09-24T09:12:35; 2014-09-24T09:12:40 to 2014-09-24T10:00:57; 2014-09-24T10:01:02 to 2014-09-24T10:49:20; 2014-09-24T10:49:25 to 2014-09-24T11:37:43; 2014-09-24T11:37:48 to 2014-09-24T11:58:59; 2014-09-24T11:59:04 to 2014-09-24T12:47:22; 2014-09-24T12:47:27 to 2014-09-24T13:35:45; 2014-09-24T13:35:50 to 2014-09-24T14:24:08; 2014-09-24T14:24:13 to 2014-09-24T15:09:36; 2014-09-24T15:09:40 to 2014-09-24T15:54:56; 2014-09-24T15:55:01 to 2014-09-24T16:43:19; 2014-09-24T16:43:24 to 2014-09-24T17:34:25; 2014-09-24T17:34:31 to 2014-09-24T18:26:30; 2014-09-24T18:26:35 to 2014-09-24T18:46:42; 2014-09-24T18:46:47 to 2014-09-24T19:35:06; 2014-09-24T19:35:11 to 2014-09-24T20:23:29; 2014-09-24T20:23:34 to 2014-09-24T21:11:53; 2014-09-24T21:11:58 to 2014-09-24T22:00:16; 2014-09-24T22:00:21 to 2014-09-24T22:43:17; 2014-09-24T22:43:21 to 2014-09-24T23:29:54; 2014-09-24T23:29:59 to 2014-09-24T23:59:49; 2014-09-24T23:59:54 to 2014-09-25T00:40:32; 2014-09-25T00:40:35 to 2014-09-25T02:44:37; 2014-09-25T02:44:42 to 2014-09-25T04:45:46; 2014-09-25T04:45:57 to 2014-09-25T05:14:56; 2014-09-25T05:16:48 to 2014-09-25T05:59:35; 2014-09-25T05:59:44 to 2014-09-25T09:35:31; 2014-09-25T09:35:42 to 2014-09-25T11:00:10; 2014-09-25T14:11:35 to 2014-09-25T17:37:59; 2014-09-25T17:38:12 to 2014-09-25T18:03:07; 2014-09-25T18:03:19 to 2014-09-25T19:29:40; 2014-09-25T19:32:57 to 2014-09-25T23:30:59; 2014-09-25T23:31:11 to 2014-09-25T23:59:54; 2014-09-26T00:00:06 to 2014-09-26T02:37:04; 2014-09-26T02:37:30 to 2014-09-26T03:31:13; 2014-09-26T03:31:39 to 2014-09-26T05:52:30; 2014-09-26T05:52:42 to 2014-09-26T06:29:48; 2014-09-26T06:30:00 to 2014-09-26T10:34:17; 2014-09-26T10:34:29 to 2014-09-26T14:37:07; 2014-09-26T14:37:25 to 2014-09-26T20:23:35; 2014-09-26T20:23:51 to 2014-09-26T20:34:40; 2014-09-26T20:34:57 to 2014-09-26T23:44:08; 2014-09-26T23:44:25 to 2014-09-27T01:14:33; 2014-09-27T01:15:07 to 2014-09-27T02:38:28; 2014-09-27T02:38:46 to 2014-09-27T03:24:48; 2014-09-27T03:25:07 to 2014-09-27T05:22:30; 2014-09-27T05:22:48 to 2014-09-27T06:01:02; 2014-09-27T06:01:19 to 2014-09-27T11:35:14; 2014-09-27T11:35:32 to 2014-09-27T14:11:31; 2014-09-27T14:11:53 to 2014-09-27T16:27:13; 2014-09-27T16:27:25 to 2014-09-27T20:28:09; 2014-09-27T21:12:23 to 2014-09-28T01:16:36; 2014-09-28T01:16:48 to 2014-09-28T01:38:06; 2014-09-28T02:05:48 to 2014-09-28T06:14:11; 2014-09-28T06:14:21 to 2014-09-28T09:58:35; 2014-09-28T10:00:24 to 2014-09-28T14:47:37; 2014-09-28T14:47:54 to 2014-09-28T15:50:20; 2014-09-28T15:50:46 to 2014-09-28T16:21:34; 2014-09-28T16:22:07 to 2014-09-28T20:16:19; 2014-09-28T20:16:35 to 2014-09-29T00:06:54; 2014-09-29T00:09:19 to 2014-09-29T05:55:05; 2014-09-29T05:55:23 to 2014-09-29T09:08:13; 2014-09-29T09:08:39 to 2014-09-29T09:47:35; 2014-09-29T09:48:08 to 2014-09-29T11:06:46; 2014-09-29T11:07:13 to 2014-09-29T14:02:21; 2014-09-29T14:02:41 to 2014-09-29T18:00:59; 2014-09-29T18:01:18 to 2014-09-29T20:24:18; 2014-09-29T20:44:02 to 2014-09-29T21:44:14; 2014-09-29T21:44:33 to 2014-09-30T00:00:13; 2014-09-30T00:00:33 to 2014-09-30T03:40:46; 2014-09-30T03:41:05 to 2014-09-30T04:20:04; 2014-09-30T04:20:25 to 2014-09-30T10:08:19; 2014-09-30T10:08:37 to 2014-09-30T10:47:49; 2014-09-30T10:48:07 to 2014-09-30T16:18:52; 2014-09-30T16:29:41 to 2014-09-30T17:31:07; 2014-09-30T17:31:28 to 2014-09-30T18:09:18; 2014-09-30T18:09:53 to 2014-09-30T21:11:04; 2014-09-30T21:11:20 to 2014-10-01T00:00:28; 2014-10-01T00:01:02 to 2014-10-01T00:55:09; 2014-10-01T01:34:18 to 2014-10-01T07:41:54; 2014-10-01T07:42:16 to 2014-10-01T10:01:07; 2014-10-01T10:01:25 to 2014-10-01T10:32:10; 2014-10-01T10:32:30 to 2014-10-01T13:20:58; 2014-10-01T13:21:16 to 2014-10-01T18:54:11; 2014-10-01T18:54:27 to 2014-10-01T19:58:13; 2014-10-01T19:58:44 to 2014-10-02T00:08:29; 2014-10-02T00:08:44 to 2014-10-02T01:39:59; 2014-10-02T05:14:02 to 2014-10-02T05:59:51; 2014-10-02T06:00:21 to 2014-10-02T10:47:33; 2014-10-02T10:47:48 to 2014-10-02T12:02:22; 2014-10-02T12:02:36 to 2014-10-02T12:54:24; 2014-10-02T12:54:39 to 2014-10-02T16:08:41; 2014-10-02T16:08:55 to 2014-10-02T18:01:18; 2014-10-02T18:01:31 to 2014-10-02T19:46:40; 2014-10-02T19:47:04 to 2014-10-02T21:56:10; 2014-10-02T21:56:52 to 2014-10-02T22:14:11; 2014-10-02T22:14:41 to 2014-10-03T00:49:22; 2014-10-03T00:50:00 to 2014-10-03T02:25:27; 2014-10-03T02:25:40 to 2014-10-03T05:28:44; 2014-10-03T05:28:59 to 2014-10-03T06:31:15; 2014-10-03T06:31:31 to 2014-10-03T10:53:28; 2014-10-03T10:53:46 to 2014-10-03T12:35:02; 2014-10-03T12:35:19 to 2014-10-03T17:58:52; 2014-10-03T17:59:28 to 2014-10-03T20:17:05; 2014-10-03T20:42:00 to 2014-10-03T23:59:02; 2014-10-03T23:59:19 to 2014-10-04T04:35:30; 2014-10-04T04:35:48 to 2014-10-04T06:14:59; 2014-10-04T06:15:25 to 2014-10-04T08:18:35; 2014-10-04T08:18:57 to 2014-10-04T10:18:39; 2014-10-04T10:19:00 to 2014-10-04T10:57:44; 2014-10-04T10:58:19 to 2014-10-04T12:49:16; 2014-10-04T12:49:34 to 2014-10-04T13:24:48; 2014-10-04T13:25:06 to 2014-10-04T14:54:02; 2014-10-04T14:54:20 to 2014-10-04T15:35:56; 2014-10-04T15:36:14 to 2014-10-04T17:37:56; 2014-10-04T17:38:14 to 2014-10-04T18:58:47; 2014-10-04T18:59:06 to 2014-10-04T20:36:22; 2014-10-04T20:36:49 to 2014-10-04T22:59:13; 2014-10-04T22:59:30 to 2014-10-04T23:59:23; 2014-10-04T23:59:41 to 2014-10-05T00:37:21; 2014-10-05T02:19:42 to 2014-10-05T05:16:40; 2014-10-05T05:17:10 to 2014-10-05T08:49:26; 2014-10-05T08:49:47 to 2014-10-05T12:56:17; 2014-10-05T12:56:55 to 2014-10-05T15:15:54; 2014-10-05T15:16:30 to 2014-10-05T21:16:39; 2014-10-05T21:16:59 to 2014-10-05T23:09:28; 2014-10-05T23:10:02 to 2014-10-06T01:57:38; 2014-10-06T01:57:59 to 2014-10-06T03:15:33; 2014-10-06T03:16:02 to 2014-10-06T10:17:57; 2014-10-06T10:18:21 to 2014-10-06T11:59:12; 2014-10-06T11:59:36 to 2014-10-06T17:59:21; 2014-10-06T17:59:39 to 2014-10-06T21:00:01; 2014-10-06T21:17:16 to 2014-10-06T23:59:13; 2014-10-06T23:59:30 to 2014-10-07T03:29:04; 2014-10-07T03:29:20 to 2014-10-07T06:54:11; 2014-10-07T06:54:28 to 2014-10-07T09:16:15; 2014-10-07T09:16:43 to 2014-10-07T11:48:28; 2014-10-07T11:48:46 to 2014-10-07T12:24:58; 2014-10-07T12:25:11 to 2014-10-07T14:46:36; 2014-10-07T14:46:53 to 2014-10-07T17:12:35; 2014-10-07T17:12:50 to 2014-10-07T18:21:46; 2014-10-07T18:22:02 to 2014-10-07T19:41:39; 2014-10-07T19:41:50 to 2014-10-07T22:06:57; 2014-10-07T22:07:13 to 2014-10-07T22:52:28; 2014-10-07T22:52:46 to 2014-10-08T02:25:54; 2014-10-08T06:54:29 to 2014-10-08T07:58:15; 2014-10-08T07:58:37 to 2014-10-08T12:42:51; 2014-10-08T12:43:06 to 2014-10-08T16:29:12; 2014-10-08T16:29:26 to 2014-10-08T16:59:51; 2014-10-08T17:00:05 to 2014-10-08T18:05:45; 2014-10-08T18:55:18 to 2014-10-08T19:42:38; 2014-10-08T19:44:53 to 2014-10-08T23:21:07; 2014-10-08T23:21:25 to 2014-10-08T23:59:20; 2014-10-08T23:59:36 to 2014-10-09T05:46:41; 2014-10-09T05:49:28 to 2014-10-09T12:20:20; 2014-10-09T12:20:51 to 2014-10-09T12:55:53; 2014-10-09T12:56:16 to 2014-10-09T19:38:47; 2014-10-09T19:41:12 to 2014-10-09T20:16:03; 2014-10-09T20:16:23 to 2014-10-10T00:56:43; 2014-10-10T00:57:07 to 2014-10-10T01:35:46; 2014-10-10T01:36:33 to 2014-10-10T03:00:49; 2014-10-10T03:01:09 to 2014-10-10T03:19:51; 2014-10-10T03:24:15 to 2014-10-10T04:17:24; 2014-10-10T04:21:05 to 2014-10-10T06:24:19; 2014-10-10T06:24:40 to 2014-10-10T12:39:41; 2014-10-10T12:40:03 to 2014-10-10T13:19:18; 2014-10-10T17:55:33 to 2014-10-10T21:49:15; 2014-10-10T21:53:08 to 2014-10-10T22:59:37; 2014-10-10T23:00:11 to 2014-10-10T23:59:38; 2014-10-10T23:59:55 to 2014-10-11T05:01:38; 2014-10-11T05:01:52 to 2014-10-11T05:59:36; 2014-10-11T05:59:51 to 2014-10-11T10:47:39; 2014-10-11T10:47:54 to 2014-10-11T13:47:04; 2014-10-11T13:47:09 to 2014-10-11T15:01:11
Spatial Bounding Box Coordinates
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S: 38.1508
E: -123.40963
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Spatial Coverage Map
Documentation links not available.
Publication Dates
  • publication: 2015-01-13
Dataset Progress Status Complete - production of the data has been completed
Data Update Frequency Not planned
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 continental margin (slope and rise) in the U.S. Pacific continental margins in order to obtain Raw Knudsen SEG-Y Datagram. These data are required to support any potential claim for an extended continental shelf 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 2000 to 5500 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 and after 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
  • UNH/CCOM-JHC : Center for Coastal and Ocean Mapping/Joint Hydrographic Center, University of New Hampshire
Publishers
  • DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
Acknowledgments
  • Andrew A. Armstrong - UNH/CCOM-JHC : Center for Coastal and Ocean Mapping/Joint Hydrographic Center, University of New Hampshire
Theme keywords Uncontrolled Keywords
  • Marine Geophysics > Shallow Subbottom
  • EARTH SCIENCE > OCEANS > MARINE GEOPHYSICS > PLATE TECTONICS
  • EARTH SCIENCE > OCEANS > OCEAN ACOUSTICS > ACOUSTIC REFLECTIVITY
  • EARTH SCIENCE > OCEANS > OCEAN ACOUSTICS > ACOUSTIC VELOCITY
Extended Continental Shelf Project Glossary of Terms
  • Foot of the slope
  • Raw datagrams
  • EARTH SCIENCE > OCEANS > MARINE GEOPHYSICS > PLATE TECTONICS
  • EARTH SCIENCE > OCEANS > OCEAN ACOUSTICS > ACOUSTIC REFLECTIVITY
  • EARTH SCIENCE > OCEANS > OCEAN ACOUSTICS > ACOUSTIC VELOCITY
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 Uncontrolled - Departure
  • Astoria, OR
Uncontrolled - Arrival
  • San Francisco, CA
Global Change Master Directory (GCMD) Location Keywords
  • Ocean > Pacific Ocean
  • U.S. Pacific margin
Use Constraints
  • Use Constraints: Please recognize the UNH/CCOM-JHC : Center for Coastal and Ocean Mapping/Joint Hydrographic Center, University of New Hampshire as the source of these data. The data are not intended for navigational purposes. The data and information are provided with the understanding that they are not guaranteed to be usable, timely, accurate, or complete. Users are cautioned to consider carefully the provisional nature of these data and information before using them for decisions that concern personal or public safety or the conduct of business that involves substantial monetary or operational consequences. Conclusions drawn from, or actions undertaken on the basis of, such data and information are the sole responsibility of the user. Neither the University of New Hampshire nor any agency thereof, nor any of their employees, contractors, or subcontractors, make any warranty, express or implied, nor assume any legal liability or responsibility for the accuracy, completeness, or usefulness of any data, software, information, apparatus, product, or process disclosed, nor represent that its use would not infringe on privately owned rights.
Access Constraints
  • Access Constraints: None
Fees
  • None
Lineage information for: series
Processor
  • UNH/CCOM-JHC : Center for Coastal and Ocean Mapping/Joint Hydrographic Center, University of New Hampshire
Processing Steps
  • 2014-11-15T00:00:00 - RAW data, not processed
Acquisition Information (collection)
Instrument
  • Knudsen 320 B/R
  • Ocean Surveyor ADCP
Platform
  • Atlantis (AT)
Operation
  • AT26-21
Last Modified: 2015-08-12
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