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Dataset Overview | National Centers for Environmental Information (NCEI)

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 as: UNH Center for Coastal and Ocean Mapping/Joint Hydrographic Center (CCOM/JHC). 2015: Raw Knudsen Engineering 320 BR CHIRP Subbottom Data for the U.S. Mendocino Ridge. NOAA National Centers for Environmental Information. Accessed [date].
  • NCEI Metadata ID: gov.noaa.ngdc.mgg.seismic:AT26-21_SubbottomProfiler
gov.noaa.ngdc.mgg.seismic:AT26-21_SubbottomProfiler
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Distribution Formats
  • Raw Knudsen SEG-Y Datagram
    • File Compression: None (transfer size in MB)
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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
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 Reference System urn:ogc:def:crs:EPSG::4326urn:ogc:def:crs:EPSG::5831
Spatial Bounding Box Coordinates
West: -136.43043
East: -123.40963
South: 38.1508
North: 45.61994
West: -124.90430
East: -124.78845
South: 45.50658
North: 45.61994
West: -125.02308
East: -124.90449
South: 45.39115
North: 45.50641
West: -125.15332
East: -125.02329
South: 45.26908
North: 45.39095
West: -125.30030
East: -125.15358
South: 45.13422
North: 45.26885
West: -125.43127
East: -125.30056
South: 45.00395
North: 45.13399
West: -125.52212
East: -125.43146
South: 44.91479
North: 45.00377
West: -125.61035
East: -125.52240
South: 44.82762
North: 44.91450
West: -125.69153
East: -125.61068
South: 44.74806
North: 44.82727
West: -125.77291
East: -125.69179
South: 44.66561
North: 44.74779
West: -125.86119
East: -125.77319
South: 44.58276
North: 44.66534
West: -125.94928
East: -125.86153
South: 44.49774
North: 44.58248
West: -125.96010
East: -125.94957
South: 44.48760
North: 44.49748
West: -126.04786
East: -125.96034
South: 44.40486
North: 44.48734
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East: -126.04819
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North: 44.40453
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East: -126.14109
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North: 44.31538
West: -126.33590
East: -126.23605
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North: 44.22373
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East: -126.33623
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East: -126.43789
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North: 44.02928
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East: -126.54459
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East: -130.26896
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North: 41.47078
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East: -132.18180
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North: 39.66043
West: -132.83920
East: -132.17984
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North: 39.82142
West: -133.81257
East: -132.84170
South: 39.77744
North: 39.82140
West: -134.40542
East: -133.81500
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North: 39.77719
West: -134.63284
East: -134.38548
South: 39.68848
North: 39.69156
West: -135.18848
East: -134.63421
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North: 39.68859
West: -136.07106
East: -135.19125
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East: -136.06167
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North: 39.79210
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East: -134.60239
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East: -134.59064
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North: 39.92520
West: -135.96657
East: -134.60745
South: 39.91181
North: 39.92519
West: -136.26623
East: -136.01255
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Spatial Coverage Map
General Documentation
Publication Dates
  • publication: 2015-01-13
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 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.
Dataset Citation
  • Cite as: UNH Center for Coastal and Ocean Mapping/Joint Hydrographic Center (CCOM/JHC). 2015: Raw Knudsen Engineering 320 BR CHIRP Subbottom Data for the U.S. Mendocino Ridge. NOAA National Centers for Environmental Information. Accessed [date].
Cited Authors
  • UNH Center for Coastal and Ocean Mapping/Joint Hydrographic Center (CCOM/JHC)
Principal Investigators
  • James V. Gardner
    UNH Center for Coastal and Ocean Mapping/Joint Hydrographic Center (CCOM/JHC)
Publishers
  • NOAA National Centers for Environmental Information
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
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
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
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 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 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.
  • 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
  • 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.
Other Constraints Cite as: UNH Center for Coastal and Ocean Mapping/Joint Hydrographic Center (CCOM/JHC). 2015: Raw Knudsen Engineering 320 BR CHIRP Subbottom Data for the U.S. Mendocino Ridge. NOAA National Centers for Environmental Information. Accessed [date].
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: series
Processor
  • UNH Center for Coastal and Ocean Mapping/Joint Hydrographic Center (CCOM/JHC)
Processing Steps
  • 2014-11-15T00:00:00 - RAW data, not processed
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
  • SBE 911plus CTD
  • Kongsberg EM122
  • Ocean Surveyor ADCP
Platform
  • Atlantis (AT)
Operation
  • AT26-21
Last Modified: 2020-05-06
For questions about the information on this page, please email: ncei.info@noaa.gov