An intermediate-scale model for thermal hydrology in low-relief permafrost-affected landscapes
Integrated surface/subsurface models for simulating the thermal hydrology of permafrost-affected regions in a warming climate have recently become available, but computational demands of those new process-rich simu- lation tools have thus far limited their applications to one-dimensional or small tw...
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Online Access: | http://www.osti.gov/servlets/purl/1376362 https://www.osti.gov/biblio/1376362 https://doi.org/10.1007/s10596-017-9679-3 |
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ftosti:oai:osti.gov:1376362 2023-07-30T04:06:16+02:00 An intermediate-scale model for thermal hydrology in low-relief permafrost-affected landscapes Jan, Ahmad Coon, Ethan T. Painter, Scott L. Garimella, Rao Moulton, J. David 2021-08-30 application/pdf http://www.osti.gov/servlets/purl/1376362 https://www.osti.gov/biblio/1376362 https://doi.org/10.1007/s10596-017-9679-3 unknown http://www.osti.gov/servlets/purl/1376362 https://www.osti.gov/biblio/1376362 https://doi.org/10.1007/s10596-017-9679-3 doi:10.1007/s10596-017-9679-3 54 ENVIRONMENTAL SCIENCES 58 GEOSCIENCES 2021 ftosti https://doi.org/10.1007/s10596-017-9679-3 2023-07-11T09:20:22Z Integrated surface/subsurface models for simulating the thermal hydrology of permafrost-affected regions in a warming climate have recently become available, but computational demands of those new process-rich simu- lation tools have thus far limited their applications to one-dimensional or small two-dimensional simulations. We present a mixed-dimensional model structure for efficiently simulating surface/subsurface thermal hydrology in low-relief permafrost regions at watershed scales. The approach replaces a full three-dimensional system with a two-dimensional overland thermal hydrology system and a family of one-dimensional vertical columns, where each column represents a fully coupled surface/subsurface thermal hydrology system without lateral flow. The system is then operator split, sequentially updating the overland flow system without sources and the one-dimensional columns without lateral flows. We show that the app- roach is highly scalable, supports subcycling of different processes, and compares well with the corresponding fully three-dimensional representation at significantly less computational cost. Those advances enable recently developed representations of freezing soil physics to be coupled with thermal overland flow and surface energy balance at scales of 100s of meters. Furthermore developed and demonstrated for permafrost thermal hydrology, the mixed-dimensional model structure is applicable to integrated surface/subsurface thermal hydrology in general. Other/Unknown Material permafrost SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy) Simu ENVELOPE(23.767,23.767,67.383,67.383) Computational Geosciences 22 1 163 177 |
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Open Polar |
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SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy) |
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ftosti |
language |
unknown |
topic |
54 ENVIRONMENTAL SCIENCES 58 GEOSCIENCES |
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54 ENVIRONMENTAL SCIENCES 58 GEOSCIENCES Jan, Ahmad Coon, Ethan T. Painter, Scott L. Garimella, Rao Moulton, J. David An intermediate-scale model for thermal hydrology in low-relief permafrost-affected landscapes |
topic_facet |
54 ENVIRONMENTAL SCIENCES 58 GEOSCIENCES |
description |
Integrated surface/subsurface models for simulating the thermal hydrology of permafrost-affected regions in a warming climate have recently become available, but computational demands of those new process-rich simu- lation tools have thus far limited their applications to one-dimensional or small two-dimensional simulations. We present a mixed-dimensional model structure for efficiently simulating surface/subsurface thermal hydrology in low-relief permafrost regions at watershed scales. The approach replaces a full three-dimensional system with a two-dimensional overland thermal hydrology system and a family of one-dimensional vertical columns, where each column represents a fully coupled surface/subsurface thermal hydrology system without lateral flow. The system is then operator split, sequentially updating the overland flow system without sources and the one-dimensional columns without lateral flows. We show that the app- roach is highly scalable, supports subcycling of different processes, and compares well with the corresponding fully three-dimensional representation at significantly less computational cost. Those advances enable recently developed representations of freezing soil physics to be coupled with thermal overland flow and surface energy balance at scales of 100s of meters. Furthermore developed and demonstrated for permafrost thermal hydrology, the mixed-dimensional model structure is applicable to integrated surface/subsurface thermal hydrology in general. |
author |
Jan, Ahmad Coon, Ethan T. Painter, Scott L. Garimella, Rao Moulton, J. David |
author_facet |
Jan, Ahmad Coon, Ethan T. Painter, Scott L. Garimella, Rao Moulton, J. David |
author_sort |
Jan, Ahmad |
title |
An intermediate-scale model for thermal hydrology in low-relief permafrost-affected landscapes |
title_short |
An intermediate-scale model for thermal hydrology in low-relief permafrost-affected landscapes |
title_full |
An intermediate-scale model for thermal hydrology in low-relief permafrost-affected landscapes |
title_fullStr |
An intermediate-scale model for thermal hydrology in low-relief permafrost-affected landscapes |
title_full_unstemmed |
An intermediate-scale model for thermal hydrology in low-relief permafrost-affected landscapes |
title_sort |
intermediate-scale model for thermal hydrology in low-relief permafrost-affected landscapes |
publishDate |
2021 |
url |
http://www.osti.gov/servlets/purl/1376362 https://www.osti.gov/biblio/1376362 https://doi.org/10.1007/s10596-017-9679-3 |
long_lat |
ENVELOPE(23.767,23.767,67.383,67.383) |
geographic |
Simu |
geographic_facet |
Simu |
genre |
permafrost |
genre_facet |
permafrost |
op_relation |
http://www.osti.gov/servlets/purl/1376362 https://www.osti.gov/biblio/1376362 https://doi.org/10.1007/s10596-017-9679-3 doi:10.1007/s10596-017-9679-3 |
op_doi |
https://doi.org/10.1007/s10596-017-9679-3 |
container_title |
Computational Geosciences |
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22 |
container_issue |
1 |
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163 |
op_container_end_page |
177 |
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