Calibrating an Ice Sheet Model using High-dimensional Binary Spatial Data
Rapid retreat of ice in the Amundsen Sea sector of West Antarctica may cause drastic sea level rise, posing significant risks to populations in low-lying coastal regions. Calibration of computer models representing the behavior of the West Antarctic Ice Sheet is key for informative projections of fu...
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ftdatacite:10.6084/m9.figshare.1629327.v1 2023-05-15T13:23:52+02:00 Calibrating an Ice Sheet Model using High-dimensional Binary Spatial Data Murali Haran Chang, Won Applegate, Patrick Pollard, David 2016 https://dx.doi.org/10.6084/m9.figshare.1629327.v1 https://tandf.figshare.com/articles/journal_contribution/Calibrating_an_Ice_Sheet_Model_using_High_dimensional_Binary_Spatial_Data/1629327/1 unknown Taylor & Francis https://dx.doi.org/10.1080/01621459.2015.1108199 https://dx.doi.org/10.6084/m9.figshare.1629327 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 CC-BY Inorganic Chemistry FOS Chemical sciences Mathematics FOS Mathematics Information and Computing Sciences Biological Sciences Immunology FOS Clinical medicine Earth and Environmental Sciences Neuroscience Medicine Text article-journal Journal contribution ScholarlyArticle 2016 ftdatacite https://doi.org/10.6084/m9.figshare.1629327.v1 https://doi.org/10.1080/01621459.2015.1108199 https://doi.org/10.6084/m9.figshare.1629327 2021-11-05T12:55:41Z Rapid retreat of ice in the Amundsen Sea sector of West Antarctica may cause drastic sea level rise, posing significant risks to populations in low-lying coastal regions. Calibration of computer models representing the behavior of the West Antarctic Ice Sheet is key for informative projections of future sea level rise. However, both the relevant observations and the model output are high-dimensional binary spatial data; existing computer model calibration methods are unable to handle such data. Here we present a novel calibration method for computer models whose output is in the form of binary spatial data. To mitigate the computational and inferential challenges posed by our approach, we apply a generalized principal component based dimension reduction method. To demonstrate the utility of our method, we calibrate the PSU3D-ICE model by comparing the output from a 499-member perturbed-parameter ensemble with observations from the Amundsen Sea sector of the ice sheet. Our methods help rigorously characterize the parameter uncertainty even in the presence of systematic data-model discrepancies and dependence in the errors. Our method also helps inform environmental risk analyses by contributing to improved projections of sea level rise from the ice sheets. Text Amundsen Sea Antarc* Antarctic Antarctica Ice Sheet West Antarctica DataCite Metadata Store (German National Library of Science and Technology) Amundsen Sea Antarctic West Antarctic Ice Sheet West Antarctica |
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Inorganic Chemistry FOS Chemical sciences Mathematics FOS Mathematics Information and Computing Sciences Biological Sciences Immunology FOS Clinical medicine Earth and Environmental Sciences Neuroscience Medicine |
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Inorganic Chemistry FOS Chemical sciences Mathematics FOS Mathematics Information and Computing Sciences Biological Sciences Immunology FOS Clinical medicine Earth and Environmental Sciences Neuroscience Medicine Murali Haran Chang, Won Applegate, Patrick Pollard, David Calibrating an Ice Sheet Model using High-dimensional Binary Spatial Data |
topic_facet |
Inorganic Chemistry FOS Chemical sciences Mathematics FOS Mathematics Information and Computing Sciences Biological Sciences Immunology FOS Clinical medicine Earth and Environmental Sciences Neuroscience Medicine |
description |
Rapid retreat of ice in the Amundsen Sea sector of West Antarctica may cause drastic sea level rise, posing significant risks to populations in low-lying coastal regions. Calibration of computer models representing the behavior of the West Antarctic Ice Sheet is key for informative projections of future sea level rise. However, both the relevant observations and the model output are high-dimensional binary spatial data; existing computer model calibration methods are unable to handle such data. Here we present a novel calibration method for computer models whose output is in the form of binary spatial data. To mitigate the computational and inferential challenges posed by our approach, we apply a generalized principal component based dimension reduction method. To demonstrate the utility of our method, we calibrate the PSU3D-ICE model by comparing the output from a 499-member perturbed-parameter ensemble with observations from the Amundsen Sea sector of the ice sheet. Our methods help rigorously characterize the parameter uncertainty even in the presence of systematic data-model discrepancies and dependence in the errors. Our method also helps inform environmental risk analyses by contributing to improved projections of sea level rise from the ice sheets. |
format |
Text |
author |
Murali Haran Chang, Won Applegate, Patrick Pollard, David |
author_facet |
Murali Haran Chang, Won Applegate, Patrick Pollard, David |
author_sort |
Murali Haran |
title |
Calibrating an Ice Sheet Model using High-dimensional Binary Spatial Data |
title_short |
Calibrating an Ice Sheet Model using High-dimensional Binary Spatial Data |
title_full |
Calibrating an Ice Sheet Model using High-dimensional Binary Spatial Data |
title_fullStr |
Calibrating an Ice Sheet Model using High-dimensional Binary Spatial Data |
title_full_unstemmed |
Calibrating an Ice Sheet Model using High-dimensional Binary Spatial Data |
title_sort |
calibrating an ice sheet model using high-dimensional binary spatial data |
publisher |
Taylor & Francis |
publishDate |
2016 |
url |
https://dx.doi.org/10.6084/m9.figshare.1629327.v1 https://tandf.figshare.com/articles/journal_contribution/Calibrating_an_Ice_Sheet_Model_using_High_dimensional_Binary_Spatial_Data/1629327/1 |
geographic |
Amundsen Sea Antarctic West Antarctic Ice Sheet West Antarctica |
geographic_facet |
Amundsen Sea Antarctic West Antarctic Ice Sheet West Antarctica |
genre |
Amundsen Sea Antarc* Antarctic Antarctica Ice Sheet West Antarctica |
genre_facet |
Amundsen Sea Antarc* Antarctic Antarctica Ice Sheet West Antarctica |
op_relation |
https://dx.doi.org/10.1080/01621459.2015.1108199 https://dx.doi.org/10.6084/m9.figshare.1629327 |
op_rights |
Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.6084/m9.figshare.1629327.v1 https://doi.org/10.1080/01621459.2015.1108199 https://doi.org/10.6084/m9.figshare.1629327 |
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