Inferring ice thickness from a glacier dynamics model and multiple surface data sets
The future behavior of the West Antarctic Ice Sheet (WAIS) may have a major impact on future climate. For instance, ice sheet melt may contribute significantly to global sea‐level rise. Understanding the current state of the WAIS is therefore of great interest. The WAIS is drained by fast‐flowing gl...
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crwiley:10.1002/env.2460 2024-06-02T07:56:05+00:00 Inferring ice thickness from a glacier dynamics model and multiple surface data sets Guan, Yawen Haran, Murali Pollard, David National Science Foundation 2017 http://dx.doi.org/10.1002/env.2460 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fenv.2460 https://onlinelibrary.wiley.com/doi/pdf/10.1002/env.2460 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Environmetrics volume 29, issue 5-6 ISSN 1180-4009 1099-095X journal-article 2017 crwiley https://doi.org/10.1002/env.2460 2024-05-03T10:51:33Z The future behavior of the West Antarctic Ice Sheet (WAIS) may have a major impact on future climate. For instance, ice sheet melt may contribute significantly to global sea‐level rise. Understanding the current state of the WAIS is therefore of great interest. The WAIS is drained by fast‐flowing glaciers, which are major contributors to ice loss. Hence, understanding the stability and dynamics of glaciers is critical for predicting the future of the ice sheet. Glacier dynamics are driven by the interplay between the topography, temperature, and basal conditions beneath the ice. A glacier dynamics model describes the interactions between these processes. We develop a hierarchical Bayesian model that integrates multiple ice‐sheet surface data sets with a glacier dynamics model. Our approach allows us to (a) infer important parameters describing the glacier dynamics, (b) learn about ice sheet thickness, and (c) account for errors in the observations and the model. Because we have relatively dense and accurate ice thickness data from the Thwaites Glacier in West Antarctica, we use these data to validate the proposed approach. The long‐term goal of this work is to have a general model that may be used to study multiple glaciers in the Antarctic. Article in Journal/Newspaper Antarc* Antarctic Antarctica Ice Sheet Thwaites Glacier West Antarctica Wiley Online Library Antarctic The Antarctic West Antarctica West Antarctic Ice Sheet Thwaites Glacier ENVELOPE(-106.750,-106.750,-75.500,-75.500) Environmetrics 29 5-6 e2460 |
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Wiley Online Library |
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crwiley |
language |
English |
description |
The future behavior of the West Antarctic Ice Sheet (WAIS) may have a major impact on future climate. For instance, ice sheet melt may contribute significantly to global sea‐level rise. Understanding the current state of the WAIS is therefore of great interest. The WAIS is drained by fast‐flowing glaciers, which are major contributors to ice loss. Hence, understanding the stability and dynamics of glaciers is critical for predicting the future of the ice sheet. Glacier dynamics are driven by the interplay between the topography, temperature, and basal conditions beneath the ice. A glacier dynamics model describes the interactions between these processes. We develop a hierarchical Bayesian model that integrates multiple ice‐sheet surface data sets with a glacier dynamics model. Our approach allows us to (a) infer important parameters describing the glacier dynamics, (b) learn about ice sheet thickness, and (c) account for errors in the observations and the model. Because we have relatively dense and accurate ice thickness data from the Thwaites Glacier in West Antarctica, we use these data to validate the proposed approach. The long‐term goal of this work is to have a general model that may be used to study multiple glaciers in the Antarctic. |
author2 |
National Science Foundation |
format |
Article in Journal/Newspaper |
author |
Guan, Yawen Haran, Murali Pollard, David |
spellingShingle |
Guan, Yawen Haran, Murali Pollard, David Inferring ice thickness from a glacier dynamics model and multiple surface data sets |
author_facet |
Guan, Yawen Haran, Murali Pollard, David |
author_sort |
Guan, Yawen |
title |
Inferring ice thickness from a glacier dynamics model and multiple surface data sets |
title_short |
Inferring ice thickness from a glacier dynamics model and multiple surface data sets |
title_full |
Inferring ice thickness from a glacier dynamics model and multiple surface data sets |
title_fullStr |
Inferring ice thickness from a glacier dynamics model and multiple surface data sets |
title_full_unstemmed |
Inferring ice thickness from a glacier dynamics model and multiple surface data sets |
title_sort |
inferring ice thickness from a glacier dynamics model and multiple surface data sets |
publisher |
Wiley |
publishDate |
2017 |
url |
http://dx.doi.org/10.1002/env.2460 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fenv.2460 https://onlinelibrary.wiley.com/doi/pdf/10.1002/env.2460 |
long_lat |
ENVELOPE(-106.750,-106.750,-75.500,-75.500) |
geographic |
Antarctic The Antarctic West Antarctica West Antarctic Ice Sheet Thwaites Glacier |
geographic_facet |
Antarctic The Antarctic West Antarctica West Antarctic Ice Sheet Thwaites Glacier |
genre |
Antarc* Antarctic Antarctica Ice Sheet Thwaites Glacier West Antarctica |
genre_facet |
Antarc* Antarctic Antarctica Ice Sheet Thwaites Glacier West Antarctica |
op_source |
Environmetrics volume 29, issue 5-6 ISSN 1180-4009 1099-095X |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/env.2460 |
container_title |
Environmetrics |
container_volume |
29 |
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5-6 |
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e2460 |
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1800753390510145536 |