A model study of the effect of climate and sea-level change on the evolution of the Antarctic Ice Sheet from the Last Glacial Maximum to 2100

2014 ◽  
Vol 45 (3-4) ◽  
pp. 837-851 ◽  
Author(s):  
M. N. A. Maris ◽  
J. M. van Wessem ◽  
W. J. van de Berg ◽  
B. de Boer ◽  
J. Oerlemans
Keyword(s):  
Sea Level ◽  
Last Glacial Maximum ◽  
Sea Level Change ◽  
Antarctic Ice Sheet ◽  
Last Glacial ◽  
Level Change ◽  
Model Study ◽  
The Antarctic ◽  
The Last Glacial Maximum ◽  
The Last Glacial

Excess ice loads in the Indian Ocean sector of East Antarctica during the last glacial period

Geology ◽  
2021 ◽  
Author(s):  
Takeshige Ishiwa ◽  
Jun’ichi Okuno ◽  
Yusuke Suganuma
Keyword(s):  
Sea Level ◽  
Last Glacial Maximum ◽  
Ice Sheet ◽  
Glacial Maximum ◽  
Antarctic Ice Sheet ◽  
Last Glacial ◽  
Indian Ocean Sector ◽  
Ocean Sector ◽  
The Antarctic ◽  
The Last Glacial

An accurate reconstruction of the Antarctic Ice Sheet is essential in order to develop an understanding of ice-sheet responses to global climate changes. However, the erosive nature of ice-sheet expansion and the difficulty of accessing much of Antarctica make it challenging to obtain field-based evidence of ice-sheet and sea-level changes before the Last Glacial Maximum. Limited sedimentary records from Lützow-Holm and Prydz Bays in East Antarctica demonstrate that the sea level during Marine Isotope Stage 3 was close to the present level despite the global sea-level drop lower than –40 m. We demonstrate glacial isostatic adjustment modeling with refined Antarctic Ice Sheet loading histories. Our experiments reveal that the Indian Ocean sector of the Antarctic Ice Sheet would have been required to experience excess ice loads before the Last Glacial Maximum in order to explain the observed sea-level highstands during Marine Isotope Stage 3. As such, we suggest that the Antarctic Ice Sheet partly reached its maximum thickness before the global Last Glacial Maximum.

scholarly journals Reconstruction of changes in the Weddell Sea sector of the Antarctic Ice Sheet since the Last Glacial Maximum

2014 ◽  
Vol 100 ◽  
pp. 111-136 ◽  
Author(s):  
Claus-Dieter Hillenbrand ◽  
Michael J. Bentley ◽  
Travis D. Stolldorf ◽  
Andrew S. Hein ◽  
Gerhard Kuhn ◽  
...  
Keyword(s):  
Last Glacial Maximum ◽  
Ice Sheet ◽  
Glacial Maximum ◽  
Weddell Sea ◽  
Antarctic Ice Sheet ◽  
Last Glacial ◽  
The Antarctic ◽  
The Last Glacial Maximum ◽  
The Last Glacial
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