Eisermann, Hannes; Eagles, Graeme; Ruppel, Antonia; Läufer, Andreas; Jokat, Wilfried (2021): Modeled bathymetry beneath Roi Baudouin and Borchgrevink ice shelves, East Antarctica [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.927545
Always quote citation above when using data! You can download the citation in several formats below.
Abstract:
The lack of consistent and reliable estimates of the bathymetry beneath the Roi Baudouin and Borchgrevink ice shelves of Dronning Maud Land is addressed by inverting airborne gravity data to model the underlying bathymetry. The bathymetric model presented here is mainly based on geophysical data sets acquired over the course of three consecutive seasons in early 2011, early 2012 and late 2012 using the Alfred Wegener Institute's Basler BT-67 aircraft 'Polar 5' and 'Polar 6' within the research program 'Geodynamic Evolution of East Antarctica' (GEA I – GEA III). The gravity inversion is supported by known depth reference points from multibeam data close to calving fronts and ice thickness radar data across grounded ice sheets. See source data sets. The dataset comprises seabed and ice base depths relative to WGS84 at a reolution of 5 km.
Supplement to:
Eisermann, Hannes; Eagles, Graeme; Ruppel, Antonia; Läufer, Andreas; Jokat, Wilfried (accepted): Bathymetric Control on Borchgrevink and Roi Baudouin Ice Shelves in East Antarctica. Journal of Geophysical Research-Earth Surface, https://doi.org/10.1029/2021JF006342
Source:
Berger, Sophie (2017): Stability of Antarctic ice shelves: A case study of the Roi Baudouin Ice Shelf, Dronning Maud Land, East Antarctica (Doctoral dissertation). Université Libre de Bruxelles
Callens, Denis; Matsuoka, Kenichi; Steinhage, Daniel; Pattyn, Frank (2015): Surface elevation and ice thickness measurements of an airborne radar survey made in the Sør Rondane Mountains, Antarctica. PANGAEA, https://doi.org/10.1594/PANGAEA.836299
Drews, Reinhard (2019): Ice thickness, surface-, and bed elevation of Derwael Ice Rise, Dronning Maud Land Antarctica (2012-2013). Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, PANGAEA, https://doi.org/10.1594/PANGAEA.905315
Favier, Lionel; Pattyn, Frank; Berger, Sophie; Drews, Reinhard (2016): Dynamic influence of pinning points on marine ice-sheet stability: a numerical study in Dronning Maud Land, East Antarctica. The Cryosphere, 10(6), 2623-263, https://doi.org/10.5194/tc-10-2623-2016
Schenke, Hans Werner; Gütz, Sonja; Iffland, Alexander; Obermüller, Anton (2010): Swath sonar bathymetry during POLARSTERN cruise ANT-XX/2 (PS63) with links to multibeam raw data files. Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, PANGAEA, https://doi.org/10.1594/PANGAEA.733040
Voß, Wibke; Daschner, Stefan; Schenke, Hans Werner (2011): Swath sonar bathymetry during POLARSTERN cruise ANT-XVII/2 (PS56) with links to multibeam raw data files. Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, PANGAEA, https://doi.org/10.1594/PANGAEA.763731
Further details:
Coverage:
Median Latitude: -70.971373 * Median Longitude: 26.098420 * South-bound Latitude: -75.019308 * West-bound Longitude: 14.162168 * North-bound Latitude: -67.223513 * East-bound Longitude: 40.186449
Event(s):
Comment:
Additional source data sets (not publicly available); hydroacoustic data and CTD casts by the Université libre de Bruxelles:
Derwael, J. (1985). Levés Altimétriques - BRB - Côte Princesse Ragnild, Expéditions Antarctiques Belgo-Néerlandaises (5 maps). Exantar.
F. Pattyn, pers. comm.
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Additional source data sets from National Oceanic and Atmospheric Administration (NOAA) database:
Survey ID Institute
ANTAC21A Japan Oceanographic Data Center
ANTAC24 Japan Oceanographic Data Center
ANTAC26 Japan Oceanographic Data Center
ANTAC8B Japan Oceanographic Data Center
ANTAC9B Japan Oceanographic Data Center
JARE27L2 Japanese Antarctic Research Expedition
JARE27L3 Japanese Antarctic Research Expedition
JARE28L2 Japanese Antarctic Research Expedition
JARE28L3 Japanese Antarctic Research Expedition
JARE29L2 Japanese Antarctic Research Expedition
JARE29L3 Japanese Antarctic Research Expedition
JARE29L4 Japanese Antarctic Research Expedition
JARE30G2 Japanese Antarctic Research Expedition
JARE30G3 Japanese Antarctic Research Expedition
JARE30G4 Japanese Antarctic Research Expedition
JARE30G6 Japanese Antarctic Research Expedition
JARE32L3 Japanese Antarctic Research Expedition
JARE32L4 Japanese Antarctic Research Expedition
JARE32L5 Japanese Antarctic Research Expedition
JARE32L6 Japanese Antarctic Research Expedition
JARE33L2 Japanese Antarctic Research Expedition
JARE34B Japanese Antarctic Research Expedition
MF103_1 LPCM, Bordeaux University, France
OB2B Vernadsky Institute of Geochemistry and Analytical Chemistry
RSA76 Lamont-Doherty Earth Observatory
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | LONGITUDE | Longitude | Eisermann, Hannes | Geocode | ||
| 2 | LATITUDE | Latitude | Eisermann, Hannes | Geocode | ||
| 3 | Coordinate, x, relative | x | arbitrary units | Eisermann, Hannes | AntStereo | |
| 4 | Coordinate, y, relative | y | arbitrary units | Eisermann, Hannes | AntStereo | |
| 5 | Bed elevation | Bed elev | m | Eisermann, Hannes | ||
| 6 | Ice base elevation | Ice base elev | m | Eisermann, Hannes |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
78508 data points
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