Multidecadal Climate Variability in Observed and Simulated Surface Air Temperature and Sea-Level Pressure
Accurate estimates of multidecadal climate variability generated internally within the climate system are required to gauge anthropogenic contribution to warming trends and to develop efficient strategies to mitigate climate change. Previous analyses of historical surface air temperatures (SAT) show...
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ftunivwisconmil:oai:dc.uwm.edu:etd-3440 2023-07-02T03:33:06+02:00 Multidecadal Climate Variability in Observed and Simulated Surface Air Temperature and Sea-Level Pressure Westgate, Andrew Aden 2020-05-01T07:00:00Z application/pdf https://dc.uwm.edu/etd/2435 https://dc.uwm.edu/context/etd/article/3440/viewcontent/Westgate_uwm_0263M_12682.pdf unknown UWM Digital Commons https://dc.uwm.edu/etd/2435 https://dc.uwm.edu/context/etd/article/3440/viewcontent/Westgate_uwm_0263M_12682.pdf Theses and Dissertations Atmospheric Sciences text 2020 ftunivwisconmil 2023-06-13T18:31:33Z Accurate estimates of multidecadal climate variability generated internally within the climate system are required to gauge anthropogenic contribution to warming trends and to develop efficient strategies to mitigate climate change. Previous analyses of historical surface air temperatures (SAT) showed that numerical climate prediction models lack a pronounced global mode of observed internal variability — the stadium wave (SW), — which represents a multidecadal undulation originating in the North Atlantic and propagating to other regions of the globe. The present study extends these analyses by exploring co-variability of SAT and sea-level pressure (SLP) within the SW. Addition of SLP data does not substantially affect the SAT component of SW, which is essentially identical to its SAT-only counterpart. The SW’s SLP features point to atmospheric teleconnections and dynamical mechanisms behind its global propagation. Finally, the climate model analogs of SW exhibit quasi-stationary, often smaller-scale patterns relative to observations, and lack of global propagation. Text North Atlantic University of Wisconsin-Milwaukee: UWM Digital Commons |
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University of Wisconsin-Milwaukee: UWM Digital Commons |
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ftunivwisconmil |
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Atmospheric Sciences |
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Atmospheric Sciences Westgate, Andrew Aden Multidecadal Climate Variability in Observed and Simulated Surface Air Temperature and Sea-Level Pressure |
topic_facet |
Atmospheric Sciences |
description |
Accurate estimates of multidecadal climate variability generated internally within the climate system are required to gauge anthropogenic contribution to warming trends and to develop efficient strategies to mitigate climate change. Previous analyses of historical surface air temperatures (SAT) showed that numerical climate prediction models lack a pronounced global mode of observed internal variability — the stadium wave (SW), — which represents a multidecadal undulation originating in the North Atlantic and propagating to other regions of the globe. The present study extends these analyses by exploring co-variability of SAT and sea-level pressure (SLP) within the SW. Addition of SLP data does not substantially affect the SAT component of SW, which is essentially identical to its SAT-only counterpart. The SW’s SLP features point to atmospheric teleconnections and dynamical mechanisms behind its global propagation. Finally, the climate model analogs of SW exhibit quasi-stationary, often smaller-scale patterns relative to observations, and lack of global propagation. |
format |
Text |
author |
Westgate, Andrew Aden |
author_facet |
Westgate, Andrew Aden |
author_sort |
Westgate, Andrew Aden |
title |
Multidecadal Climate Variability in Observed and Simulated Surface Air Temperature and Sea-Level Pressure |
title_short |
Multidecadal Climate Variability in Observed and Simulated Surface Air Temperature and Sea-Level Pressure |
title_full |
Multidecadal Climate Variability in Observed and Simulated Surface Air Temperature and Sea-Level Pressure |
title_fullStr |
Multidecadal Climate Variability in Observed and Simulated Surface Air Temperature and Sea-Level Pressure |
title_full_unstemmed |
Multidecadal Climate Variability in Observed and Simulated Surface Air Temperature and Sea-Level Pressure |
title_sort |
multidecadal climate variability in observed and simulated surface air temperature and sea-level pressure |
publisher |
UWM Digital Commons |
publishDate |
2020 |
url |
https://dc.uwm.edu/etd/2435 https://dc.uwm.edu/context/etd/article/3440/viewcontent/Westgate_uwm_0263M_12682.pdf |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Theses and Dissertations |
op_relation |
https://dc.uwm.edu/etd/2435 https://dc.uwm.edu/context/etd/article/3440/viewcontent/Westgate_uwm_0263M_12682.pdf |
_version_ |
1770272919753064448 |