First Quantification of the Permafrost Heat Sink in the Earth's Climate System ...
Due to an imbalance between incoming and outgoing radiation at the top of the atmosphere, excess heat has accumulated in Earth's climate system in recent decades, driving global warming and climatic changes. To date, it has not been quantified how much of this excess heat is used to melt ground...
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ftdatacite:10.18452/26963 2024-09-15T18:11:22+00:00 First Quantification of the Permafrost Heat Sink in the Earth's Climate System ... Nitzbon, Jan Krinner, Gerhard Schneider Von Deimling, Thomas Werner, Martin Langer, Moritz 2023 https://dx.doi.org/10.18452/26963 https://edoc.hu-berlin.de/handle/18452/27651 en eng Humboldt-Universität zu Berlin Creative Commons Attribution 4.0 International (CC BY 4.0) Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 permafrost Earth’s energy imbalance essential climate variable heat sink CryoGrid land surface model 550 Geowissenschaften Text article article-journal ScholarlyArticle 2023 ftdatacite https://doi.org/10.18452/26963 2024-09-02T08:58:24Z Due to an imbalance between incoming and outgoing radiation at the top of the atmosphere, excess heat has accumulated in Earth's climate system in recent decades, driving global warming and climatic changes. To date, it has not been quantified how much of this excess heat is used to melt ground ice in permafrost. Here, we diagnose changes in sensible and latent ground heat contents in the northern terrestrial permafrost region from ensemble-simulations of a tailored land surface model. We find that between 1980 and 2018, about 3.9^+1.4_-1.6 ZJ of heat, of which 1.7_-1.4^+1.3 ZJ (44%) were used to melt ground ice, were absorbed by permafrost. Our estimate, which does not yet account for the potentially increased heat uptake due to thermokarst processes in ice-rich terrain, suggests that permafrost is a persistent heat sink comparable in magnitude to other components of the cryosphere and must be explicitly considered when assessing Earth's energy imbalance. ... Text Ice permafrost Thermokarst DataCite |
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English |
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permafrost Earth’s energy imbalance essential climate variable heat sink CryoGrid land surface model 550 Geowissenschaften |
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permafrost Earth’s energy imbalance essential climate variable heat sink CryoGrid land surface model 550 Geowissenschaften Nitzbon, Jan Krinner, Gerhard Schneider Von Deimling, Thomas Werner, Martin Langer, Moritz First Quantification of the Permafrost Heat Sink in the Earth's Climate System ... |
topic_facet |
permafrost Earth’s energy imbalance essential climate variable heat sink CryoGrid land surface model 550 Geowissenschaften |
description |
Due to an imbalance between incoming and outgoing radiation at the top of the atmosphere, excess heat has accumulated in Earth's climate system in recent decades, driving global warming and climatic changes. To date, it has not been quantified how much of this excess heat is used to melt ground ice in permafrost. Here, we diagnose changes in sensible and latent ground heat contents in the northern terrestrial permafrost region from ensemble-simulations of a tailored land surface model. We find that between 1980 and 2018, about 3.9^+1.4_-1.6 ZJ of heat, of which 1.7_-1.4^+1.3 ZJ (44%) were used to melt ground ice, were absorbed by permafrost. Our estimate, which does not yet account for the potentially increased heat uptake due to thermokarst processes in ice-rich terrain, suggests that permafrost is a persistent heat sink comparable in magnitude to other components of the cryosphere and must be explicitly considered when assessing Earth's energy imbalance. ... |
format |
Text |
author |
Nitzbon, Jan Krinner, Gerhard Schneider Von Deimling, Thomas Werner, Martin Langer, Moritz |
author_facet |
Nitzbon, Jan Krinner, Gerhard Schneider Von Deimling, Thomas Werner, Martin Langer, Moritz |
author_sort |
Nitzbon, Jan |
title |
First Quantification of the Permafrost Heat Sink in the Earth's Climate System ... |
title_short |
First Quantification of the Permafrost Heat Sink in the Earth's Climate System ... |
title_full |
First Quantification of the Permafrost Heat Sink in the Earth's Climate System ... |
title_fullStr |
First Quantification of the Permafrost Heat Sink in the Earth's Climate System ... |
title_full_unstemmed |
First Quantification of the Permafrost Heat Sink in the Earth's Climate System ... |
title_sort |
first quantification of the permafrost heat sink in the earth's climate system ... |
publisher |
Humboldt-Universität zu Berlin |
publishDate |
2023 |
url |
https://dx.doi.org/10.18452/26963 https://edoc.hu-berlin.de/handle/18452/27651 |
genre |
Ice permafrost Thermokarst |
genre_facet |
Ice permafrost Thermokarst |
op_rights |
Creative Commons Attribution 4.0 International (CC BY 4.0) Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 |
op_doi |
https://doi.org/10.18452/26963 |
_version_ |
1810448956305440768 |