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A multibeam-bathymetric compilation for the southern Amundsen Sea shelf, 1999-2019

We present a new compilation of multibeam-bathymetric data for the inner Amundsen Sea continental shelf beyond Thwaites and Pine Island glaciers (bounding box: 100W to 110W, 74S to 75.5S). The region includes Pine Island Bay, marine areas offshore the Thwaites Ice Shelf to the Crosson Ice Shelf, and covers an area of 74,750 km2. The bathymetric grids were compiled from all available multibeam echosounder (MBES) data acquired by UK, German, USA and Korean scientific cruises to the area between 1999 and 2019 (see lineage). Three grids of sea floor elevation data are available in a range of formats (ESRI ascii interchange format and GMT-compatible netCDF 4byte float): a 50-m resolution grid with no interpolation, a 50-m grid interpolated up to 300 m from cells with real data, and a 500-m resolution grid with no interpolation. Note that these grids have not been merged with regional bathymetric grids and, therefore, do not have continuous coverage (i.e. cells are only populated where multibeam data exist).

This work was supported by grants from the National Science Foundation (NSF: Grant OPP- 1738942) and Natural Environment Research Council (NERC: Grant NE/S006664/1) as part of the International Thwaites Glacier Collaboration (ITGC) programme, and grants NE/J005770/1 and NE/J005703/1 as part of the iSTAR Programme.

Simple

Alternate title
Polar Data Centre (PDC) record GB/NERC/BAS/PDC/01364
Date (Publication)
2021-03-22
Identifier
http://www.antarctica.ac.uk/dms/metadata.php?id= / GB/NERC/BAS/PDC/01364
Custodian
  British Antarctic Survey
High Cross, Madingley Road , Cambridge , CB3 0ET , UK
+44 (0)1223 221400
Originator
  Polar Data Centre,Natural Environment Research Council,UK Research & Innovation - Hogan, Kelly et al.
High Cross, Madingley , Cambridge , CB3 0ET , UK
+44 (0)1223 221400
Maintenance and update frequency
unknown Unknown
Keywords
  • NDGO0001
NERC OAI Harvesting
  • NERC_DDC
GCMD Parameter Valids
  • EARTH SCIENCE > Oceans > Bathymetry/Seafloor Topography
  • EARTH SCIENCE > Oceans > Bathymetry/Seafloor Topography > Bathymetry
  • EARTH SCIENCE > Oceans > Bathymetry/Seafloor Topography > Seafloor Topography
  • EARTH SCIENCE > Oceans > Bathymetry/Seafloor Topography > Water Depth
BAS Free-text keywords
  • Coastal bathymetry
  • ITGC
  • Multibeam
  • Pine Island Bay
  • Southern Amundsen Sea Embayment
  • Thwaites Glacier
  • Thwaites Ice Shelf
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 cite the data:

Hogan, K. A., Larter, R. D., Graham, A. G. C., Nitsche, F. O., Kirkham, J. D., Totten Minzoni, R., Clark, R., Fitzgerald, V., Anderson, J. B., Hillenbrand, C.-D., Simkins, L., Smith, J. A., Gohl, K., Arndt, J. E., Hong, J., Heywood, K. J., Abrahamsen, E. P., Thompson, A. F., Dunbar, R., & Wellner, J. S. (2020). A multibeam-bathymetric compilation for the southern Amundsen Sea shelf, 1999-2019 (Version 1.0) [Data set]. UK Polar Data Centre, Natural Environment Research Council, UK Research & Innovation. https://doi.org/10.5285/F2DFEDA9-BF44-4EF5-89A3-EE5E434A385C

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 cite the data:

Hogan, K. A., Larter, R. D., Graham, A. G. C., Nitsche, F. O., Kirkham, J. D., Totten Minzoni, R., Clark, R., Fitzgerald, V., Anderson, J. B., Hillenbrand, C.-D., Simkins, L., Smith, J. A., Gohl, K., Arndt, J. E., Hong, J., Heywood, K. J., Abrahamsen, E. P., Thompson, A. F., Dunbar, R., & Wellner, J. S. (2020). A multibeam-bathymetric compilation for the southern Amundsen Sea shelf, 1999-2019 (Version 1.0) [Data set]. UK Polar Data Centre, Natural Environment Research Council, UK Research & Innovation. https://doi.org/10.5285/F2DFEDA9-BF44-4EF5-89A3-EE5E434A385C

Distance
50  m
Metadata language
EnglishEnglish
Topic category
  • Elevation
  • Geoscientific information
  • Oceans
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E
W
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Begin date
1999-01-01
End date
2019-12-31
Reference system identifier
OGP / urn:ogc:def:crs:EPSG::4326
Distribution format
Distributor
  Polar Data Centre - British Antarctic Survey
+44 (0)1223 221400
OnLine resource
https://thwaitesglacieroffshoreresearch.org/
Hierarchy level
dataset Dataset

Domain consistency

Measure identification
INSPIRE / Conformity_001

Conformance result

Date
Explanation
See the referenced specification
Pass
No
Statement
Quality control was undertaken manually to remove any outliers in the source datasets. This involved cleaning of the raw data during or after each individual cruise, and then again after compiling the datasets. For cruise NBP19-02, one of the principal datasets in the grid, the raw data cleaning was done using the "mbedit" and "mbeditviz" programs from MB-system. Other BAS datasets were also cleaned using "mbedit".
File identifier
GB_NERC_BAS_PDC_01364 XML
Metadata language
EnglishEnglish
Hierarchy level
dataset Dataset
Date stamp
2021-03-22
Metadata standard name
NERC profile of ISO19115:2003
Metadata standard version
1.0
Point of contact
  British Antarctic Survey
+44 (0)1223 221400
Dataset URI
http://www.antarctica.ac.uk/dms/metadata.php?id=GB/NERC/BAS/PDC/01364
 
 

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