Validating contrasting terrestrial climate-sensitive Pliocene deposits through high resolution modeling of paleo-environments in the Transantarctic Mountains
Abstract: Intellectual Merit: Neogene sediment records recovered by ANDRILL suggest multiple events of open water conditions and elevated sea surface temperatures at times when terrestrial data from the McMurdo Dry Valleys indicate hyper arid, cold, desert conditions. Interpretation of the ANDRILL d...
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2014
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dataone:http://get.iedadata.org/metadata/iso/600140 2024-10-03T18:45:37+00:00 Validating contrasting terrestrial climate-sensitive Pliocene deposits through high resolution modeling of paleo-environments in the Transantarctic Mountains Kowalewski, Douglas ENVELOPE(-160.0,-120.0,-70.0,-85.0) BEGINDATE: 2013-07-08T00:00:00Z ENDDATE: 2014-05-31T00:00:00Z 2014-01-01T00:00:00Z http://get.iedadata.org/metadata/iso/600140 unknown IEDA: US Antarctic Program Data Center Model Data Antarctic Earth Sciences Glaciology Paleoclimate Antarctica Glaciers/Ice Sheet Atmosphere Cryosphere Transantarctic Mountains US Antarctic Program Data Center (USAP-DC) Dataset 2014 dataone:urn:node:IEDA_USAP 2024-10-03T18:12:02Z Abstract: Intellectual Merit: Neogene sediment records recovered by ANDRILL suggest multiple events of open water conditions and elevated sea surface temperatures at times when terrestrial data from the McMurdo Dry Valleys indicate hyper arid, cold, desert conditions. Interpretation of the ANDRILL data suggests the West Antarctic Ice Sheet is highly sensitive to changes in Pliocene sea surface temperatures and this conclusion has been supported by recent Global Circulation Model results for the early to mid Pliocene. The PIs propose to model paleo-ice configurations and warm orbits associated with a WAIS collapse to assess potential climate change in East Antarctica. During such episodes of polar warmth they propose to answer: What is the limit of ablation along the East Antarctic Ice Sheet?; Are relict landforms in the Dry Valleys susceptible to modification from increase in maximum summertime temperatures?; and Is there sufficient increase in minimum wintertime temperatures to sustain a tundra environment in the Dry Valleys? Integration of depositional records and model outputs have the potential to test the performance of numerical models currently under development as part of ANDRILL; reconcile inconsistencies between marine and terrestrial paleoclimate records in high Southern Latitudes; and improve understanding of Antarctic climate and ice volume sensitivity to forcing for both the East Antarctic and West Antarctic Ice Sheets. Broader impacts: Results from this study have the potential to be used widely by the research community. Outreach to local elementary schools from other funded efforts will continue and be extended to homeschooled students. A Post Doc will be supported as part of this award. Dataset Antarc* Antarctic Antarctica East Antarctica Ice Sheet McMurdo Dry Valleys Tundra IEDA: US Antarctic Program Data Center (via DataONE) Antarctic East Antarctica West Antarctic Ice Sheet McMurdo Dry Valleys East Antarctic Ice Sheet Transantarctic Mountains ENVELOPE(-160.0,-120.0,-70.0,-85.0) |
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Open Polar |
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IEDA: US Antarctic Program Data Center (via DataONE) |
op_collection_id |
dataone:urn:node:IEDA_USAP |
language |
unknown |
topic |
Model Data Antarctic Earth Sciences Glaciology Paleoclimate Antarctica Glaciers/Ice Sheet Atmosphere Cryosphere Transantarctic Mountains US Antarctic Program Data Center (USAP-DC) |
spellingShingle |
Model Data Antarctic Earth Sciences Glaciology Paleoclimate Antarctica Glaciers/Ice Sheet Atmosphere Cryosphere Transantarctic Mountains US Antarctic Program Data Center (USAP-DC) Kowalewski, Douglas Validating contrasting terrestrial climate-sensitive Pliocene deposits through high resolution modeling of paleo-environments in the Transantarctic Mountains |
topic_facet |
Model Data Antarctic Earth Sciences Glaciology Paleoclimate Antarctica Glaciers/Ice Sheet Atmosphere Cryosphere Transantarctic Mountains US Antarctic Program Data Center (USAP-DC) |
description |
Abstract: Intellectual Merit: Neogene sediment records recovered by ANDRILL suggest multiple events of open water conditions and elevated sea surface temperatures at times when terrestrial data from the McMurdo Dry Valleys indicate hyper arid, cold, desert conditions. Interpretation of the ANDRILL data suggests the West Antarctic Ice Sheet is highly sensitive to changes in Pliocene sea surface temperatures and this conclusion has been supported by recent Global Circulation Model results for the early to mid Pliocene. The PIs propose to model paleo-ice configurations and warm orbits associated with a WAIS collapse to assess potential climate change in East Antarctica. During such episodes of polar warmth they propose to answer: What is the limit of ablation along the East Antarctic Ice Sheet?; Are relict landforms in the Dry Valleys susceptible to modification from increase in maximum summertime temperatures?; and Is there sufficient increase in minimum wintertime temperatures to sustain a tundra environment in the Dry Valleys? Integration of depositional records and model outputs have the potential to test the performance of numerical models currently under development as part of ANDRILL; reconcile inconsistencies between marine and terrestrial paleoclimate records in high Southern Latitudes; and improve understanding of Antarctic climate and ice volume sensitivity to forcing for both the East Antarctic and West Antarctic Ice Sheets. Broader impacts: Results from this study have the potential to be used widely by the research community. Outreach to local elementary schools from other funded efforts will continue and be extended to homeschooled students. A Post Doc will be supported as part of this award. |
format |
Dataset |
author |
Kowalewski, Douglas |
author_facet |
Kowalewski, Douglas |
author_sort |
Kowalewski, Douglas |
title |
Validating contrasting terrestrial climate-sensitive Pliocene deposits through high resolution modeling of paleo-environments in the Transantarctic Mountains |
title_short |
Validating contrasting terrestrial climate-sensitive Pliocene deposits through high resolution modeling of paleo-environments in the Transantarctic Mountains |
title_full |
Validating contrasting terrestrial climate-sensitive Pliocene deposits through high resolution modeling of paleo-environments in the Transantarctic Mountains |
title_fullStr |
Validating contrasting terrestrial climate-sensitive Pliocene deposits through high resolution modeling of paleo-environments in the Transantarctic Mountains |
title_full_unstemmed |
Validating contrasting terrestrial climate-sensitive Pliocene deposits through high resolution modeling of paleo-environments in the Transantarctic Mountains |
title_sort |
validating contrasting terrestrial climate-sensitive pliocene deposits through high resolution modeling of paleo-environments in the transantarctic mountains |
publisher |
IEDA: US Antarctic Program Data Center |
publishDate |
2014 |
url |
http://get.iedadata.org/metadata/iso/600140 |
op_coverage |
ENVELOPE(-160.0,-120.0,-70.0,-85.0) BEGINDATE: 2013-07-08T00:00:00Z ENDDATE: 2014-05-31T00:00:00Z |
long_lat |
ENVELOPE(-160.0,-120.0,-70.0,-85.0) |
geographic |
Antarctic East Antarctica West Antarctic Ice Sheet McMurdo Dry Valleys East Antarctic Ice Sheet Transantarctic Mountains |
geographic_facet |
Antarctic East Antarctica West Antarctic Ice Sheet McMurdo Dry Valleys East Antarctic Ice Sheet Transantarctic Mountains |
genre |
Antarc* Antarctic Antarctica East Antarctica Ice Sheet McMurdo Dry Valleys Tundra |
genre_facet |
Antarc* Antarctic Antarctica East Antarctica Ice Sheet McMurdo Dry Valleys Tundra |
_version_ |
1811925749352890368 |