Non-separable Nearest-Neighbor Gaussian Process Model for Antarctic Surface Mass Balance and Ice Core Site Selection
Surface mass balance (SMB) is an important factor in the estimation of sea level change, and data are collected to estimate models for prediction of SMB over the Antarctic ice sheets. Using a quality-controlled aggregate dataset of SMB field measurements with significantly more observations than pre...
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ftdatacite:10.48550/arxiv.1807.05466 2023-05-15T13:38:23+02:00 Non-separable Nearest-Neighbor Gaussian Process Model for Antarctic Surface Mass Balance and Ice Core Site Selection White, Philip A. Reese, C. Shane Christensen, William F. Rupper, Summer 2018 https://dx.doi.org/10.48550/arxiv.1807.05466 https://arxiv.org/abs/1807.05466 unknown arXiv https://dx.doi.org/10.1002/env.2579 arXiv.org perpetual, non-exclusive license http://arxiv.org/licenses/nonexclusive-distrib/1.0/ Applications stat.AP FOS Computer and information sciences article-journal Article ScholarlyArticle Text 2018 ftdatacite https://doi.org/10.48550/arxiv.1807.05466 https://doi.org/10.1002/env.2579 2022-04-01T09:13:26Z Surface mass balance (SMB) is an important factor in the estimation of sea level change, and data are collected to estimate models for prediction of SMB over the Antarctic ice sheets. Using a quality-controlled aggregate dataset of SMB field measurements with significantly more observations than previous analyses, a fully Bayesian nearest-neighbor Gaussian process model is posed to estimate Antarctic SMB and propose new field measurement locations. A corresponding Antarctic SMB map is rendered using this model and is compared with previous estimates. A prediction uncertainty map is created to identify regions of high SMB uncertainty. The model estimates net SMB to be 2345 Gton $\text{yr}^{-1}$, with 95% credible interval (2273,2413) Gton $\text{yr}^{-1}$. Overall, these results suggest lower Antarctic SMB than previously reported. Using the model's uncertainty quantification, we propose 25 new measurement sites for field study utilizing a design to minimize integrated mean squared error. Text Antarc* Antarctic ice core DataCite Metadata Store (German National Library of Science and Technology) Antarctic The Antarctic |
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Applications stat.AP FOS Computer and information sciences |
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Applications stat.AP FOS Computer and information sciences White, Philip A. Reese, C. Shane Christensen, William F. Rupper, Summer Non-separable Nearest-Neighbor Gaussian Process Model for Antarctic Surface Mass Balance and Ice Core Site Selection |
topic_facet |
Applications stat.AP FOS Computer and information sciences |
description |
Surface mass balance (SMB) is an important factor in the estimation of sea level change, and data are collected to estimate models for prediction of SMB over the Antarctic ice sheets. Using a quality-controlled aggregate dataset of SMB field measurements with significantly more observations than previous analyses, a fully Bayesian nearest-neighbor Gaussian process model is posed to estimate Antarctic SMB and propose new field measurement locations. A corresponding Antarctic SMB map is rendered using this model and is compared with previous estimates. A prediction uncertainty map is created to identify regions of high SMB uncertainty. The model estimates net SMB to be 2345 Gton $\text{yr}^{-1}$, with 95% credible interval (2273,2413) Gton $\text{yr}^{-1}$. Overall, these results suggest lower Antarctic SMB than previously reported. Using the model's uncertainty quantification, we propose 25 new measurement sites for field study utilizing a design to minimize integrated mean squared error. |
format |
Text |
author |
White, Philip A. Reese, C. Shane Christensen, William F. Rupper, Summer |
author_facet |
White, Philip A. Reese, C. Shane Christensen, William F. Rupper, Summer |
author_sort |
White, Philip A. |
title |
Non-separable Nearest-Neighbor Gaussian Process Model for Antarctic Surface Mass Balance and Ice Core Site Selection |
title_short |
Non-separable Nearest-Neighbor Gaussian Process Model for Antarctic Surface Mass Balance and Ice Core Site Selection |
title_full |
Non-separable Nearest-Neighbor Gaussian Process Model for Antarctic Surface Mass Balance and Ice Core Site Selection |
title_fullStr |
Non-separable Nearest-Neighbor Gaussian Process Model for Antarctic Surface Mass Balance and Ice Core Site Selection |
title_full_unstemmed |
Non-separable Nearest-Neighbor Gaussian Process Model for Antarctic Surface Mass Balance and Ice Core Site Selection |
title_sort |
non-separable nearest-neighbor gaussian process model for antarctic surface mass balance and ice core site selection |
publisher |
arXiv |
publishDate |
2018 |
url |
https://dx.doi.org/10.48550/arxiv.1807.05466 https://arxiv.org/abs/1807.05466 |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic ice core |
genre_facet |
Antarc* Antarctic ice core |
op_relation |
https://dx.doi.org/10.1002/env.2579 |
op_rights |
arXiv.org perpetual, non-exclusive license http://arxiv.org/licenses/nonexclusive-distrib/1.0/ |
op_doi |
https://doi.org/10.48550/arxiv.1807.05466 https://doi.org/10.1002/env.2579 |
_version_ |
1766105356086280192 |