Climate reconstructions from ice cores: New techniques to understand the information preserved in the South Pole ice core
Thesis (Ph.D.)--University of Washington, 2020 Polar ice cores preserve information about past changes in climate and ice dynamics. Studying changes that have occurred in the past improves understanding of Earth's climate system. Large climate changes, such as the most recent glacial-interglaci...
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ftunivwashington:oai:digital.lib.washington.edu:1773/45398 2023-05-15T13:52:18+02:00 Climate reconstructions from ice cores: New techniques to understand the information preserved in the South Pole ice core Kahle, Emma Carolyn Steig, Eric J 2020 application/pdf http://hdl.handle.net/1773/45398 en_US eng Kahle_washington_0250E_21157.pdf http://hdl.handle.net/1773/45398 CC BY Antarctica climate change ice core water isotopes Paleoclimate science Earth and space sciences Thesis 2020 ftunivwashington 2023-03-12T18:59:59Z Thesis (Ph.D.)--University of Washington, 2020 Polar ice cores preserve information about past changes in climate and ice dynamics. Studying changes that have occurred in the past improves understanding of Earth's climate system. Large climate changes, such as the most recent glacial-interglacial transition, provide opportunities to detect a strong signal in changes within the climate system. In this thesis I develop new techniques for interpreting information from ice-core records in order to create robust reconstructions of past climate change. The South Pole ice-core record spans the last 54 ka, encompassing the entirety of the last glacial-interglacial change. I make use of high-resolution data from the South Pole ice core to apply new techniques for interpreting ice-core water-isotope data. I use a novel inverse approach to simultaneously constrain records of temperature, accumulation, and ice-sheet vertical strain from multiple ice-core measurements. The temperature reconstruction improves upon previous ice-core estimates for deglacial warming in East Antarctica and reconciles a longstanding discrepancy between data and model estimates of Antarctic temperature change. I use a simple climate model to examine the physical processes underlying large changes in climate. This thesis improves our understanding of Antarctic climate change over glacial-interglacial transitions. Thesis Antarc* Antarctic Antarctica East Antarctica ice core Ice Sheet South pole South pole University of Washington, Seattle: ResearchWorks Antarctic East Antarctica South Pole |
institution |
Open Polar |
collection |
University of Washington, Seattle: ResearchWorks |
op_collection_id |
ftunivwashington |
language |
English |
topic |
Antarctica climate change ice core water isotopes Paleoclimate science Earth and space sciences |
spellingShingle |
Antarctica climate change ice core water isotopes Paleoclimate science Earth and space sciences Kahle, Emma Carolyn Climate reconstructions from ice cores: New techniques to understand the information preserved in the South Pole ice core |
topic_facet |
Antarctica climate change ice core water isotopes Paleoclimate science Earth and space sciences |
description |
Thesis (Ph.D.)--University of Washington, 2020 Polar ice cores preserve information about past changes in climate and ice dynamics. Studying changes that have occurred in the past improves understanding of Earth's climate system. Large climate changes, such as the most recent glacial-interglacial transition, provide opportunities to detect a strong signal in changes within the climate system. In this thesis I develop new techniques for interpreting information from ice-core records in order to create robust reconstructions of past climate change. The South Pole ice-core record spans the last 54 ka, encompassing the entirety of the last glacial-interglacial change. I make use of high-resolution data from the South Pole ice core to apply new techniques for interpreting ice-core water-isotope data. I use a novel inverse approach to simultaneously constrain records of temperature, accumulation, and ice-sheet vertical strain from multiple ice-core measurements. The temperature reconstruction improves upon previous ice-core estimates for deglacial warming in East Antarctica and reconciles a longstanding discrepancy between data and model estimates of Antarctic temperature change. I use a simple climate model to examine the physical processes underlying large changes in climate. This thesis improves our understanding of Antarctic climate change over glacial-interglacial transitions. |
author2 |
Steig, Eric J |
format |
Thesis |
author |
Kahle, Emma Carolyn |
author_facet |
Kahle, Emma Carolyn |
author_sort |
Kahle, Emma Carolyn |
title |
Climate reconstructions from ice cores: New techniques to understand the information preserved in the South Pole ice core |
title_short |
Climate reconstructions from ice cores: New techniques to understand the information preserved in the South Pole ice core |
title_full |
Climate reconstructions from ice cores: New techniques to understand the information preserved in the South Pole ice core |
title_fullStr |
Climate reconstructions from ice cores: New techniques to understand the information preserved in the South Pole ice core |
title_full_unstemmed |
Climate reconstructions from ice cores: New techniques to understand the information preserved in the South Pole ice core |
title_sort |
climate reconstructions from ice cores: new techniques to understand the information preserved in the south pole ice core |
publishDate |
2020 |
url |
http://hdl.handle.net/1773/45398 |
geographic |
Antarctic East Antarctica South Pole |
geographic_facet |
Antarctic East Antarctica South Pole |
genre |
Antarc* Antarctic Antarctica East Antarctica ice core Ice Sheet South pole South pole |
genre_facet |
Antarc* Antarctic Antarctica East Antarctica ice core Ice Sheet South pole South pole |
op_relation |
Kahle_washington_0250E_21157.pdf http://hdl.handle.net/1773/45398 |
op_rights |
CC BY |
_version_ |
1766256592008773632 |