Hostname: page-component-7dd5485656-gs9qr Total loading time: 0 Render date: 2025-10-30T08:01:38.951Z Has data issue: false hasContentIssue false
  • English
  • Français

Compilation of a new bathymetric dataset of South Georgia

Published online by Cambridge University Press:  02 December 2008

P.T. Fretwell ,
A.J. Tate ,
T.J. Deen  and
M. Belchier
P.T. Fretwell*
Affiliation:
British Antarctic Survey, NERC, High Cross, Madingley Road, Cambridge CB3 0ET, UK
A.J. Tate
Affiliation:
British Antarctic Survey, NERC, High Cross, Madingley Road, Cambridge CB3 0ET, UK
T.J. Deen
Affiliation:
British Antarctic Survey, NERC, High Cross, Madingley Road, Cambridge CB3 0ET, UK
M. Belchier
Affiliation:
British Antarctic Survey, NERC, High Cross, Madingley Road, Cambridge CB3 0ET, UK
*
*ptf@bas.ac.uk
Get access Rights & Permissions [Opens in a new window]

Abstract

We introduce a new bathymetric compilation of the area around South Georgia in the Southern Ocean. Using a variety of data sources including multi and single-beam swath bathymetry we have constructed a gridded bathymetric dataset of the shelf and near-shelf sea-floor areas. The grid has been constructed using a layered hierarchy dependent upon accuracy of each dataset. The spikes and errors have been checked both manually and with a novel semi-automated process. We discuss the resulting bathymetry and the potential uses of the new dataset.

Keywords

gridoceanographyScotia SeaSouthern Ocean

Information

Type
Physical Science
Information
Antarctic Science , Volume 21 , Issue 2 , April 2009 , pp. 171 - 174
Copyright
Copyright © Antarctic Science Ltd 2009

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Article purchase

Temporarily unavailable

References

Belchier, M. & Fretwell, P. 2008. Revised estimates of the area of the South Georgia and Shag Rocks shelf (CCAMLR Subarea 48.3). CCAMLR-WG-SAM-08/10. Hobart: CCAMLR.Google Scholar
Burrough, P.A. 1986. Principles of Geographical Information Systems for land resources assessment. New York: Oxford University Press, 50 pp.Google Scholar
Everson, I. & Campbell, S. 1991. Area of seabed within selected depth ranges in CCAMLR subarea 48.3, South Georgia. SC-CCAMLR-SSP/7, 1990, WG-FAS-90-8, 459–466.Google Scholar
IOC, IHO & BODC. 2003. Centenary Edition of the GEBCO Digital Atlas. Published on CD-ROM on behalf of the Intergovernmental Oceanographic Commission and the International Hydrographic Organization as part of the General Bathymetric Chart of the Oceans, Liverpool: British Oceanographic Data Centre.Google Scholar
Graham, A.G.D., Fretwell, P.T., Larter, R.D., Hodgson, D.A., Wilson, C.K., Tate, A.J. & Morris, P. 2008. New bathymetric compilation highlights extensive paleo-ice sheet drainage on continental shelf, South Georgia, sub-Antarctica. Geochemistry, Geophysics, Geosystems, 9, 1–21.CrossRefGoogle Scholar
Hutchinson, M.F. 1988. Calculation of hydrologically sound digital elevation models. Third International Symposium on Spatial Data Handling, Sydney. Columbus, OH: International Geographical Union, 117–133.Google Scholar
Nitsche, F.O., Jacobs, S.S., Larter, R.D. & Gohl, K. 2007. Bathymetry of the Amundsen Sea continental shelf: implications for geology, oceanography, and glaciology. Geochemistry, Geophysics, Geosystems, 8, 10.1029/2007GC001694.CrossRefGoogle Scholar
Wells, D. & Monahan, D. 2002. IHO S44 Standards for Hydrographic Surveys and the variety of requirements for bathymetric data. The Hydrographic Journal, 104, 9–16.Google Scholar