Ground subsidence effects on simulating dynamic high-latitude surface inundation under permafrost thaw using CLM5
Simulating surface inundation is particularly challenging for the high-latitude permafrost regions. Ice-rich permafrost thaw can create expanding thermokarst lakes as well as shrinking large wetlands. Such processes can have major biogeochemical implications and feedbacks to the climate system by al...
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ftdoajarticles:oai:doaj.org/article:9cde3a63f5d548db87a45caff313c0b9 2023-05-15T16:37:04+02:00 Ground subsidence effects on simulating dynamic high-latitude surface inundation under permafrost thaw using CLM5 A. Ekici H. Lee D. M. Lawrence S. C. Swenson C. Prigent 2019-12-01T00:00:00Z https://doi.org/10.5194/gmd-12-5291-2019 https://doaj.org/article/9cde3a63f5d548db87a45caff313c0b9 EN eng Copernicus Publications https://www.geosci-model-dev.net/12/5291/2019/gmd-12-5291-2019.pdf https://doaj.org/toc/1991-959X https://doaj.org/toc/1991-9603 doi:10.5194/gmd-12-5291-2019 1991-959X 1991-9603 https://doaj.org/article/9cde3a63f5d548db87a45caff313c0b9 Geoscientific Model Development, Vol 12, Pp 5291-5300 (2019) Geology QE1-996.5 article 2019 ftdoajarticles https://doi.org/10.5194/gmd-12-5291-2019 2022-12-31T10:08:04Z Simulating surface inundation is particularly challenging for the high-latitude permafrost regions. Ice-rich permafrost thaw can create expanding thermokarst lakes as well as shrinking large wetlands. Such processes can have major biogeochemical implications and feedbacks to the climate system by altering the pathways and rates of permafrost carbon release. However, the processes associated with it have not yet been properly represented in Earth system models. We show a new model parameterization that allows direct representation of surface water dynamics in CLM (Community Land Model), the land surface model of several Earth System Models. Specifically, we coupled permafrost-thaw-induced ground subsidence and surface microtopography distribution to represent surface water dynamics in the high latitudes. Our results show increased surface water fractions around western Siberian plains and northeastern territories of Canada. Additionally, localized drainage events correspond well to severe ground subsidence events. Our parameterization is one of the first steps towards a process-oriented representation of surface hydrology, which is crucial to assess the biogeochemical feedbacks between land and the atmosphere under changing climate. Article in Journal/Newspaper Ice permafrost Thermokarst Directory of Open Access Journals: DOAJ Articles Canada Geoscientific Model Development 12 12 5291 5300 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Geology QE1-996.5 |
spellingShingle |
Geology QE1-996.5 A. Ekici H. Lee D. M. Lawrence S. C. Swenson C. Prigent Ground subsidence effects on simulating dynamic high-latitude surface inundation under permafrost thaw using CLM5 |
topic_facet |
Geology QE1-996.5 |
description |
Simulating surface inundation is particularly challenging for the high-latitude permafrost regions. Ice-rich permafrost thaw can create expanding thermokarst lakes as well as shrinking large wetlands. Such processes can have major biogeochemical implications and feedbacks to the climate system by altering the pathways and rates of permafrost carbon release. However, the processes associated with it have not yet been properly represented in Earth system models. We show a new model parameterization that allows direct representation of surface water dynamics in CLM (Community Land Model), the land surface model of several Earth System Models. Specifically, we coupled permafrost-thaw-induced ground subsidence and surface microtopography distribution to represent surface water dynamics in the high latitudes. Our results show increased surface water fractions around western Siberian plains and northeastern territories of Canada. Additionally, localized drainage events correspond well to severe ground subsidence events. Our parameterization is one of the first steps towards a process-oriented representation of surface hydrology, which is crucial to assess the biogeochemical feedbacks between land and the atmosphere under changing climate. |
format |
Article in Journal/Newspaper |
author |
A. Ekici H. Lee D. M. Lawrence S. C. Swenson C. Prigent |
author_facet |
A. Ekici H. Lee D. M. Lawrence S. C. Swenson C. Prigent |
author_sort |
A. Ekici |
title |
Ground subsidence effects on simulating dynamic high-latitude surface inundation under permafrost thaw using CLM5 |
title_short |
Ground subsidence effects on simulating dynamic high-latitude surface inundation under permafrost thaw using CLM5 |
title_full |
Ground subsidence effects on simulating dynamic high-latitude surface inundation under permafrost thaw using CLM5 |
title_fullStr |
Ground subsidence effects on simulating dynamic high-latitude surface inundation under permafrost thaw using CLM5 |
title_full_unstemmed |
Ground subsidence effects on simulating dynamic high-latitude surface inundation under permafrost thaw using CLM5 |
title_sort |
ground subsidence effects on simulating dynamic high-latitude surface inundation under permafrost thaw using clm5 |
publisher |
Copernicus Publications |
publishDate |
2019 |
url |
https://doi.org/10.5194/gmd-12-5291-2019 https://doaj.org/article/9cde3a63f5d548db87a45caff313c0b9 |
geographic |
Canada |
geographic_facet |
Canada |
genre |
Ice permafrost Thermokarst |
genre_facet |
Ice permafrost Thermokarst |
op_source |
Geoscientific Model Development, Vol 12, Pp 5291-5300 (2019) |
op_relation |
https://www.geosci-model-dev.net/12/5291/2019/gmd-12-5291-2019.pdf https://doaj.org/toc/1991-959X https://doaj.org/toc/1991-9603 doi:10.5194/gmd-12-5291-2019 1991-959X 1991-9603 https://doaj.org/article/9cde3a63f5d548db87a45caff313c0b9 |
op_doi |
https://doi.org/10.5194/gmd-12-5291-2019 |
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Geoscientific Model Development |
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12 |
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12 |
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5291 |
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5300 |
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