Land-Atmosphere Cascade Fueled the 2020 Siberian Heatwave
International audience A heatwave in Siberia starting in January 2020, initiated by a wave 5 pattern in the jet stream, caused the surface air temperature to reach 38°C in June with important impacts on ecosystems and water resources. Here we show that this dynamical setup started a chain of events...
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Online Access: | https://insu.hal.science/insu-03993087 https://insu.hal.science/insu-03993087/document https://insu.hal.science/insu-03993087/file/AGU%20Advances%20-%202022%20-%20Gloege%20-%20Land%E2%80%90Atmosphere%20Cascade%20Fueled%20the%202020%20Siberian%20Heatwave.pdf https://doi.org/10.1029/2021AV000619 |
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ftinsu:oai:HAL:insu-03993087v1 2024-04-28T08:11:17+00:00 Land-Atmosphere Cascade Fueled the 2020 Siberian Heatwave Gloege, L. Kornhuber, K. Skulovich, O. Pal, I. Zhou, S. Ciais, Philippe Gentine, P. Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA) 2022 https://insu.hal.science/insu-03993087 https://insu.hal.science/insu-03993087/document https://insu.hal.science/insu-03993087/file/AGU%20Advances%20-%202022%20-%20Gloege%20-%20Land%E2%80%90Atmosphere%20Cascade%20Fueled%20the%202020%20Siberian%20Heatwave.pdf https://doi.org/10.1029/2021AV000619 en eng HAL CCSD info:eu-repo/semantics/altIdentifier/doi/10.1029/2021AV000619 insu-03993087 https://insu.hal.science/insu-03993087 https://insu.hal.science/insu-03993087/document https://insu.hal.science/insu-03993087/file/AGU%20Advances%20-%202022%20-%20Gloege%20-%20Land%E2%80%90Atmosphere%20Cascade%20Fueled%20the%202020%20Siberian%20Heatwave.pdf BIBCODE: 2022AGUA.300619G doi:10.1029/2021AV000619 http://creativecommons.org/licenses/by-nd/ info:eu-repo/semantics/OpenAccess ISSN: 2576-604X EISSN: 2576-604X AGU Advances https://insu.hal.science/insu-03993087 AGU Advances, 2022, 3, ⟨10.1029/2021AV000619⟩ heatwave soil moisture snow cover leaf area index carbon cycle [SDU]Sciences of the Universe [physics] info:eu-repo/semantics/article Journal articles 2022 ftinsu https://doi.org/10.1029/2021AV000619 2024-04-05T00:30:24Z International audience A heatwave in Siberia starting in January 2020, initiated by a wave 5 pattern in the jet stream, caused the surface air temperature to reach 38°C in June with important impacts on ecosystems and water resources. Here we show that this dynamical setup started a chain of events leading to this long-lasting and unusual event: positive temperature anomalies over Siberia caused early snowmelt, leading to substantial earlier vegetation greening accompanied by decreased soil moisture and browning in the summer. This soil moisture depletion and vegetation browning, in turn, increased the impact of the heatwave on the atmosphere through a land-atmosphere feedback. This line of evidence suggests that large-scale dynamics and land-atmosphere interactions both contributed to the magnitude and persistence of this record-breaking heatwave, in addition to the background global warming impact on mean temperature. Here, we describe a carry-over effect in Siberia from a spring positive temperature anomaly into summer dryness and browning, with retroaction into the atmosphere. With the Arctic warming twice as fast as the global average, this event foreshadows the future of northern latitude continents and emphasizes the importance of both atmospheric dynamics and land-atmosphere interactions in the future as the climate changes. More frequent similar events could have major consequences on the carbon cycle in these carbon-rich northern latitude regions. Article in Journal/Newspaper Arctic Global warming Siberia Institut national des sciences de l'Univers: HAL-INSU AGU Advances 3 6 |
institution |
Open Polar |
collection |
Institut national des sciences de l'Univers: HAL-INSU |
op_collection_id |
ftinsu |
language |
English |
topic |
heatwave soil moisture snow cover leaf area index carbon cycle [SDU]Sciences of the Universe [physics] |
spellingShingle |
heatwave soil moisture snow cover leaf area index carbon cycle [SDU]Sciences of the Universe [physics] Gloege, L. Kornhuber, K. Skulovich, O. Pal, I. Zhou, S. Ciais, Philippe Gentine, P. Land-Atmosphere Cascade Fueled the 2020 Siberian Heatwave |
topic_facet |
heatwave soil moisture snow cover leaf area index carbon cycle [SDU]Sciences of the Universe [physics] |
description |
International audience A heatwave in Siberia starting in January 2020, initiated by a wave 5 pattern in the jet stream, caused the surface air temperature to reach 38°C in June with important impacts on ecosystems and water resources. Here we show that this dynamical setup started a chain of events leading to this long-lasting and unusual event: positive temperature anomalies over Siberia caused early snowmelt, leading to substantial earlier vegetation greening accompanied by decreased soil moisture and browning in the summer. This soil moisture depletion and vegetation browning, in turn, increased the impact of the heatwave on the atmosphere through a land-atmosphere feedback. This line of evidence suggests that large-scale dynamics and land-atmosphere interactions both contributed to the magnitude and persistence of this record-breaking heatwave, in addition to the background global warming impact on mean temperature. Here, we describe a carry-over effect in Siberia from a spring positive temperature anomaly into summer dryness and browning, with retroaction into the atmosphere. With the Arctic warming twice as fast as the global average, this event foreshadows the future of northern latitude continents and emphasizes the importance of both atmospheric dynamics and land-atmosphere interactions in the future as the climate changes. More frequent similar events could have major consequences on the carbon cycle in these carbon-rich northern latitude regions. |
author2 |
Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA) |
format |
Article in Journal/Newspaper |
author |
Gloege, L. Kornhuber, K. Skulovich, O. Pal, I. Zhou, S. Ciais, Philippe Gentine, P. |
author_facet |
Gloege, L. Kornhuber, K. Skulovich, O. Pal, I. Zhou, S. Ciais, Philippe Gentine, P. |
author_sort |
Gloege, L. |
title |
Land-Atmosphere Cascade Fueled the 2020 Siberian Heatwave |
title_short |
Land-Atmosphere Cascade Fueled the 2020 Siberian Heatwave |
title_full |
Land-Atmosphere Cascade Fueled the 2020 Siberian Heatwave |
title_fullStr |
Land-Atmosphere Cascade Fueled the 2020 Siberian Heatwave |
title_full_unstemmed |
Land-Atmosphere Cascade Fueled the 2020 Siberian Heatwave |
title_sort |
land-atmosphere cascade fueled the 2020 siberian heatwave |
publisher |
HAL CCSD |
publishDate |
2022 |
url |
https://insu.hal.science/insu-03993087 https://insu.hal.science/insu-03993087/document https://insu.hal.science/insu-03993087/file/AGU%20Advances%20-%202022%20-%20Gloege%20-%20Land%E2%80%90Atmosphere%20Cascade%20Fueled%20the%202020%20Siberian%20Heatwave.pdf https://doi.org/10.1029/2021AV000619 |
genre |
Arctic Global warming Siberia |
genre_facet |
Arctic Global warming Siberia |
op_source |
ISSN: 2576-604X EISSN: 2576-604X AGU Advances https://insu.hal.science/insu-03993087 AGU Advances, 2022, 3, ⟨10.1029/2021AV000619⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1029/2021AV000619 insu-03993087 https://insu.hal.science/insu-03993087 https://insu.hal.science/insu-03993087/document https://insu.hal.science/insu-03993087/file/AGU%20Advances%20-%202022%20-%20Gloege%20-%20Land%E2%80%90Atmosphere%20Cascade%20Fueled%20the%202020%20Siberian%20Heatwave.pdf BIBCODE: 2022AGUA.300619G doi:10.1029/2021AV000619 |
op_rights |
http://creativecommons.org/licenses/by-nd/ info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1029/2021AV000619 |
container_title |
AGU Advances |
container_volume |
3 |
container_issue |
6 |
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