Metadata details
mawsonbathy_gis
All scientific data collected by the Australian Antarctic program (AAp) are eventually described in the Catalogue of Australian Antarctic and Subantarctic Metadata (CAASM). CAASM can be used to search through AAp data descriptions, and it also provides links to access publicly available datasets, which can either be immediately downloaded or obtained from the Australian Antarctic Data Centre (AADC).
- Citation
- Harris, U. (1999) Bathymetry of Approaches to Mawson Station, Ver. 1, Australian Antarctic Data Centre - https://data.aad.gov.au/metadata/mawsonbathy_gis, Accessed: 2026-08-25
- Title
- Bathymetry of Approaches to Mawson Station
- Data Centre
- Australian Antarctic Data Centre, Australia
- Created Date
- 1999-10-07
- Revision Date
- 2017-04-26
- Parent record
- None
Datasets and documents
Related links
Description
Bathymetric contours and height range polygons of approaches to Mawson Station, derived from RAN Fair sheet, Aurora Australis and GEBCO soundings.
Quality
All soundings from fair sheets
Approaches to Mawson, sheets
HI 99 V5/425 6762/1 (Sheet 3) Scale 1:10,000
HI 99 V5/425 6762/2 (Sheet 2) Scale 1:25,000
HI 169 V5/516 6762/3 (Sheet 2) Scale 1:5000
were captured and all GEBCO and Aurora Australis data were used. Point data taken RAN Fair Sheets (see their Metadata records) and integrated with GEBCO and Aurora Australis Point data. The entire dataset was contoured using Intergraph's Siteworks with an interval of 5 metres in areas of scale 1:10000 to 1:25000; 2 metres in areas of 1:5000 scale; and 200 metres in areas of much smaller scale (GEBCO and Aurora Australis). Resulting contour lines were converted to arc/Info and checked for overlapping lines. These were fixed where they occurred. The ends of the contours were closed using connectors and the resulting dataset was built for polygons. The contour height values were transferred to the polygon tables. Depressions were determined by isolating closed polygons (without connectors), if these contained contours which went below the height range of the surrounding contours then they were tagged as depressions. Feature values for polygons were also determined from their surrounding lines. The final dataset was subdivided into Data Quality Indicator (DQI) regions so that the polygons and arcs could be tagged with the correct DQI value. DQI regions were assigned using the bounds of the most accurate dataset first and then working out to the least accurate dataset. The dataset was tested for spatial accuracy and data completeness. The attribute values were consistent with the topological relationships.
Access
These data are publicly available for download from the provided URL.
Temporal Coverages
- Start date: 1987-02-03 - Stop date: 1992-03-04
Spatial Coverages
Science Keywords
- EARTH SCIENCE > OCEANS > BATHYMETRY/SEAFLOOR TOPOGRAPHY > SEAFLOOR TOPOGRAPHY
- EARTH SCIENCE > OCEANS > BATHYMETRY/SEAFLOOR TOPOGRAPHY > WATER DEPTH
Additional Keywords
- SOUNDINGS BATHYMETRY, MAWSON
Locations
- CONTINENT > ANTARCTICA > MAWSON
- GEOGRAPHIC REGION > POLAR
Platforms
- None
Instruments
- None
Researchers
- harris, ursula (INVESTIGATOR,TECHNICAL CONTACT,DIF AUTHOR)
Use Constraints
This data set conforms to the CCBY Attribution License
(http://creativecommons.org/licenses/by/4.0/).
Please follow instructions listed in the citation reference provided at http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=mawsonbathy_gis when using these data.
