From Australian Oceans Data Network
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Totten Glacier Ice Shelf cavity bathymetry

Created 23/06/2025

Updated 23/06/2025

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This is a derived product containing two products blended together that describes the elevation of the seafloor beneath and out to approximately seaward of the Totten Glacier Ice Shelf cavity as well as the elevation of the ice bottom beneath the ice sheet immediately sounding the ice shelf cavity. The seafloor was inferred by inverting airborne gravity observations; the terrain beneath grounded ice was observed with airborne ice sounding radar measurements. The two products were blended along the grounding line observed with satellite observations [Rignot, E., Mouginot, J. and Scheuchl, B. Antarctic grounding line mapping from differential satellite radar interferometry. Geophys. Res. Lett. 38, L10504 (2011)]. We have provided a text file that contains three columns that may be used to produce a gridded bathymetry of the Totten Glacier Ice Shelf and surrounding area with a cell size of 1-km. The first two columns contain grid coordinates using the Polar Stereographic projection based on WGS84 with true scale at 71 degrees S. The third column contains the vertical coordinate representing the seafloor beneath and the ice-bottom elevation around the Totten Glacier Ice Shelf cavity. The center of the region is located near 115E and 67S and spans an area about 217 km by 131 km. The data are described in detail in the publication and supplementary materials that can be found by following this link: http://www.nature.com/ngeo/journal/v8/n4/abs/ngeo2388.html#supplementary-information

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Additional Info

Field Value
Title Totten Glacier Ice Shelf cavity bathymetry
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/7604f3d9-b1c0-4472-8cd0-c7d65e0a2bc3
Contact Point
Australian Ocean Data Network
metadata@aad.gov.au
Reference Period 01/11/2008 - 31/01/2012
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        112.5,
        -68.0
      ],
      [
        118.0,
        -68.0
      ],
      [
        118.0,
        -66.0
      ],
      [
        112.5,
        -66.0
      ],
      [
        112.5,
        -68.0
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Australian Oceans Data Network

Data Source

This dataset was originally found on Australian Oceans Data Network "Totten Glacier Ice Shelf cavity bathymetry". Please visit the source to access the original metadata of the dataset:
https://catalogue.aodn.org.au/geonetwork/srv/eng/csw/dataset/totten-glacier-ice-shelf-cavity-bathymetry