Glacial isostatic adjustment: physical models and observational constraints
By far the most prescient insights into the interior structure of the planet have been provided on the basis of elastic wave seismology. Analysis of the travel times of shear or compression wave phases excited by individual earthquakes, or through analysis of the elastic gravitational free oscillati...
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ftnanyangtu:oai:dr.ntu.edu.sg:10356/168866 2023-07-23T04:15:44+02:00 Glacial isostatic adjustment: physical models and observational constraints Peltier, W. Richard Wu, Patrick Pak-Cheuk Argus, Donald F. Li, Tanghua Velay-Vitow, Jesse Earth Observatory of Singapore 2022 application/pdf https://hdl.handle.net/10356/168866 https://doi.org/10.1088/1361-6633/ac805b en eng MOE2019-T3-1-004 MOE-T2EP50120-0007 Reports on Progress in Physics Peltier, W. R., Wu, P. P., Argus, D. F., Li, T. & Velay-Vitow, J. (2022). Glacial isostatic adjustment: physical models and observational constraints. Reports On Progress in Physics, 85(9), 096801-. https://dx.doi.org/10.1088/1361-6633/ac805b 0034-4885 https://hdl.handle.net/10356/168866 doi:10.1088/1361-6633/ac805b 85 2-s2.0-85138460242 9 096801 © 2022 IOP Publishing Ltd. All rights reserved. This is an author-created, un-copyedited version of an article accepted for publication in Reports on Progress in Physics. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The definitive publisher authenticated version is available online at https://doi.org/10.1088/1361-6633/ac805b. Science::Geology Glacial Isostatic Adjustment Review Journal Article 2022 ftnanyangtu https://doi.org/10.1088/1361-6633/ac805b 2023-06-30T00:21:37Z By far the most prescient insights into the interior structure of the planet have been provided on the basis of elastic wave seismology. Analysis of the travel times of shear or compression wave phases excited by individual earthquakes, or through analysis of the elastic gravitational free oscillations that individual earthquakes of sufficiently large magnitude may excite, has been the central focus of Earth physics research for more than a century. Unfortunately, data provide no information that is directly relevant to understanding the solid state ‘flow’ of the polycrystalline outer ‘mantle’ shell of the planet that is involved in the thermally driven convective circulation that is responsible for powering the ‘drift’ of the continents and which controls the rate of planetary cooling on long timescales. For this reason, there has been an increasing focus on the understanding of physical phenomenology that is unambiguously associated with mantle flow processes that are distinct from those directly associated with the convective circulation itself. This paper reviews the past many decades of work that has been invested in understanding the most important of such processes, namely that which has come to be referred to as ‘glacial isostatic adjustment’ (GIA). This process concerns the response of the planet to the loading and unloading of the high latitude continents by the massive accumulations of glacial ice that have occurred with almost metronomic regularity over the most recent million years of Earth history. Forced by the impact of gravitational n-body effects on the geometry of Earth’s orbit around the Sun through the impact upon the terrestrial regime of received solar insolation, these surface mass loads on the continents have left indelible records of their occurrence in the ‘Earth system’ consisting of the oceans, continents, and the great polar ice sheets on Greenland and Antarctica themselves. Although this ice-age phenomenology has been clearly recognized since early in the last century, it was for ... Article in Journal/Newspaper Antarc* Antarctica Greenland DR-NTU (Digital Repository at Nanyang Technological University, Singapore) Greenland Reports on Progress in Physics 85 9 096801 |
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Open Polar |
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DR-NTU (Digital Repository at Nanyang Technological University, Singapore) |
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ftnanyangtu |
language |
English |
topic |
Science::Geology Glacial Isostatic Adjustment Review |
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Science::Geology Glacial Isostatic Adjustment Review Peltier, W. Richard Wu, Patrick Pak-Cheuk Argus, Donald F. Li, Tanghua Velay-Vitow, Jesse Glacial isostatic adjustment: physical models and observational constraints |
topic_facet |
Science::Geology Glacial Isostatic Adjustment Review |
description |
By far the most prescient insights into the interior structure of the planet have been provided on the basis of elastic wave seismology. Analysis of the travel times of shear or compression wave phases excited by individual earthquakes, or through analysis of the elastic gravitational free oscillations that individual earthquakes of sufficiently large magnitude may excite, has been the central focus of Earth physics research for more than a century. Unfortunately, data provide no information that is directly relevant to understanding the solid state ‘flow’ of the polycrystalline outer ‘mantle’ shell of the planet that is involved in the thermally driven convective circulation that is responsible for powering the ‘drift’ of the continents and which controls the rate of planetary cooling on long timescales. For this reason, there has been an increasing focus on the understanding of physical phenomenology that is unambiguously associated with mantle flow processes that are distinct from those directly associated with the convective circulation itself. This paper reviews the past many decades of work that has been invested in understanding the most important of such processes, namely that which has come to be referred to as ‘glacial isostatic adjustment’ (GIA). This process concerns the response of the planet to the loading and unloading of the high latitude continents by the massive accumulations of glacial ice that have occurred with almost metronomic regularity over the most recent million years of Earth history. Forced by the impact of gravitational n-body effects on the geometry of Earth’s orbit around the Sun through the impact upon the terrestrial regime of received solar insolation, these surface mass loads on the continents have left indelible records of their occurrence in the ‘Earth system’ consisting of the oceans, continents, and the great polar ice sheets on Greenland and Antarctica themselves. Although this ice-age phenomenology has been clearly recognized since early in the last century, it was for ... |
author2 |
Earth Observatory of Singapore |
format |
Article in Journal/Newspaper |
author |
Peltier, W. Richard Wu, Patrick Pak-Cheuk Argus, Donald F. Li, Tanghua Velay-Vitow, Jesse |
author_facet |
Peltier, W. Richard Wu, Patrick Pak-Cheuk Argus, Donald F. Li, Tanghua Velay-Vitow, Jesse |
author_sort |
Peltier, W. Richard |
title |
Glacial isostatic adjustment: physical models and observational constraints |
title_short |
Glacial isostatic adjustment: physical models and observational constraints |
title_full |
Glacial isostatic adjustment: physical models and observational constraints |
title_fullStr |
Glacial isostatic adjustment: physical models and observational constraints |
title_full_unstemmed |
Glacial isostatic adjustment: physical models and observational constraints |
title_sort |
glacial isostatic adjustment: physical models and observational constraints |
publishDate |
2022 |
url |
https://hdl.handle.net/10356/168866 https://doi.org/10.1088/1361-6633/ac805b |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Antarc* Antarctica Greenland |
genre_facet |
Antarc* Antarctica Greenland |
op_relation |
MOE2019-T3-1-004 MOE-T2EP50120-0007 Reports on Progress in Physics Peltier, W. R., Wu, P. P., Argus, D. F., Li, T. & Velay-Vitow, J. (2022). Glacial isostatic adjustment: physical models and observational constraints. Reports On Progress in Physics, 85(9), 096801-. https://dx.doi.org/10.1088/1361-6633/ac805b 0034-4885 https://hdl.handle.net/10356/168866 doi:10.1088/1361-6633/ac805b 85 2-s2.0-85138460242 9 096801 |
op_rights |
© 2022 IOP Publishing Ltd. All rights reserved. This is an author-created, un-copyedited version of an article accepted for publication in Reports on Progress in Physics. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The definitive publisher authenticated version is available online at https://doi.org/10.1088/1361-6633/ac805b. |
op_doi |
https://doi.org/10.1088/1361-6633/ac805b |
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Reports on Progress in Physics |
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85 |
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9 |
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096801 |
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