NERC Data Catalogue Service
Isis remotely-operated vehicle (ROV) bathymetry data in Marguerite Trough, Antarctica, from James Clark Ross cruise JR157, 2007
On cruise JR157 the Isis ROV was deployed on 15 dives in the Marguerite Trough area in January and February 2007. We present here the data acquired during dives 10 and 11. Dives 10 and 11 targeted a bedrock channel system on the inner continental shelf to investigate channel incision processes and the history of glaciation in the area. The plan was to map parts of the channel walls and thalweg, and then to use these data to locate the best coring sites within the channel system. In reality, several small patches of bathymetric data were acquired from the channels by a multibeam echosounder mounted on the ROV.
This research was funded by UK Natural Environment Research Council grant AFI06/14 (NE/C506372/1) to J.A. Dowdeswell, R.D. Larter and G. Griffiths.
Simple
- Alternate title
- Polar Data Centre (PDC) record GB/NERC/BAS/PDC/01585
- Date (Publication)
- 2021-11-23
- Identifier
- http://www.antarctica.ac.uk/dms/metadata.php?id= / GB/NERC/BAS/PDC/01585
- Maintenance and update frequency
- unknown Unknown
- Keywords
-
- NDGO0001
- NERC OAI Harvesting
-
- NERC_DDC
- GCMD Parameter Valids
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- EARTH SCIENCE > Oceans > Bathymetry/Seafloor Topography
- EARTH SCIENCE > Oceans > Bathymetry/Seafloor Topography > Bathymetry
- BAS Free-text keywords
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- Antarctica
- Bedrock channels
- Isis ROV
- Marguerite Trough
- Remotely-operated vehicle
- bathymetry
- multibeam
- Use limitation
-
This data is covered by a UK Open Government Licence (http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/)
Further by downloading this data the user acknowledges that they agree with the NERC data policy (http://www.nerc.ac.uk/research/sites/data/policy.asp), and the following conditions:
1. To cite the data
Dowdeswell, J., Larter, R., Noormets, R., Griffiths, G., & Hogan, K. (2021). Isis remotely-operated vehicle (ROV) bathymetry data in Marguerite Trough, Antarctica, from James Clark Ross cruise JR157, 2007 (Version 1.0) [Data set]. NERC EDS UK Polar Data Centre. https://doi.org/10.5285/EF1996E4-7825-4456-B1F7-4D1B26531D72
2. The user recognizes the limitations of data and will not use this data for navigation purposes. Use of the data is at the users'' own risk, and there is no warranty as to the quality or accuracy of any data, or the fitness of the data for your intended use. The data are not necessarily fully quality assured and cannot be expected to be free from measurement uncertainty, systematic biases, or errors of interpretation or analysis, and may include inaccuracies in error margins quoted with the data.
NOT TO BE USED FOR NAVIGATION
- Access constraints
- otherRestrictions Other restrictions
- Other constraints
-
This data is covered by a UK Open Government Licence (http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/)
Further by downloading this data the user acknowledges that they agree with the NERC data policy (http://www.nerc.ac.uk/research/sites/data/policy.asp), and the following conditions:
1. To cite the data
Dowdeswell, J., Larter, R., Noormets, R., Griffiths, G., & Hogan, K. (2021). Isis remotely-operated vehicle (ROV) bathymetry data in Marguerite Trough, Antarctica, from James Clark Ross cruise JR157, 2007 (Version 1.0) [Data set]. NERC EDS UK Polar Data Centre. https://doi.org/10.5285/EF1996E4-7825-4456-B1F7-4D1B26531D72
2. The user recognizes the limitations of data and will not use this data for navigation purposes. Use of the data is at the users'' own risk, and there is no warranty as to the quality or accuracy of any data, or the fitness of the data for your intended use. The data are not necessarily fully quality assured and cannot be expected to be free from measurement uncertainty, systematic biases, or errors of interpretation or analysis, and may include inaccuracies in error margins quoted with the data.
NOT TO BE USED FOR NAVIGATION
- Metadata language
- EnglishEnglish
- Topic category
-
- Elevation
- Geoscientific information
))
- Begin date
- 2007-01-29
- End date
- 2007-01-31
- Reference system identifier
- OGP / urn:ogc:def:crs:EPSG::4326
- Distribution format
-
- Hierarchy level
- dataset Dataset
Domain consistency
- Measure identification
- INSPIRE / Conformity_001
Conformance result
- Date
- Explanation
- See the referenced specification
- Pass
- No
- Statement
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Quality of the multibeam bathymetric data was variable with some pervasive issues relating to vehicle motion (pitch/roll artefacts) and positioning during acquisition. Position error of the ROV exceeded the possible bathymetric grid size. The Isis ROV used ultra-short baseline (USBL) to obtain frequent absolute positions (each with rms error of 5 m) to correct for positional inaccuracies. Some raw data files did not import into the Caraibes software thus not all bathymetry data could be processed and included in the final grids.
Gridded multibeam bathymetry data have horizontal square grid cell sizes of 0.25 ? 0.5 m.
- File identifier
- GB_NERC_BAS_PDC_01585 XML
- Metadata language
- EnglishEnglish
- Hierarchy level
- dataset Dataset
- Date stamp
- 2021-11-23
- Metadata standard name
- NERC profile of ISO19115:2003
- Metadata standard version
- 1.0
Overviews
Spatial extent
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