Summer Temperature over the Tibetan Plateau Modulated by Atlantic Multidecadal Variability
International audience Rapid warming has led to an aggregated environmental degradation over the Tibetan Plateau (TP) in the last few decades, including accelerated glacier retreat, early snowmelt, permafrost degradation, and forest fire occurrence. Attribution of this warming in recent decades has...
Published in: | Journal of Climate |
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Main Authors: | , , , , , , , , , , , , , , |
Other Authors: | , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2019
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Subjects: | |
Online Access: | https://hal.archives-ouvertes.fr/hal-02899707 https://hal.archives-ouvertes.fr/hal-02899707/document https://hal.archives-ouvertes.fr/hal-02899707/file/%5B15200442%20-%20Journal%20of%20Climate%5D%20Summer%20Temperature%20over%20the%20Tibetan%20Plateau%20Modulated%20by%20Atlantic%20Multidecadal%20Variability.pdf https://doi.org/10.1175/JCLI-D-17-0858.1 |
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Université de Nantes: HAL-UNIV-NANTES |
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ftunivnantes |
language |
English |
topic |
[SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere |
spellingShingle |
[SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere Shi, Chunming Sun, Cheng Wu, Guocan Wu, Xiuchen Chen, Deliang Masson-Delmotte, Valérie Li, Jianping Xue, Jiaqing Li, Zongshan Ji, Duoying Zhang, Jing Fan, Zexin Shen, Miaogen Shu, Lifu Ciais, Philippe Summer Temperature over the Tibetan Plateau Modulated by Atlantic Multidecadal Variability |
topic_facet |
[SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere |
description |
International audience Rapid warming has led to an aggregated environmental degradation over the Tibetan Plateau (TP) in the last few decades, including accelerated glacier retreat, early snowmelt, permafrost degradation, and forest fire occurrence. Attribution of this warming in recent decades has mainly been focused on anthropogenic forcing. Yet, linkages to the Atlantic multidecadal variability (AMV), an essential part of the climate system causing decadal to centennial fluctuations of temperature, remains poorly understood for the TP, especially at long time scales. Using well-replicated tree-ring width records, we reconstructed 358 years of summer minimum temperature (MinT) of the whole TP. This reconstruction matches the recent warming signal recorded since the 1980s, and captures 63% of the variance in 1950–2005 instrumental records. A teleconnection from the North Atlantic to the TP is further identified based in observations and simulations with an atmospheric general circulation model (AGCM). We propose that half of the multidecadal variability of TP summer MinT can be explained by the AMV over the past three and a half centuries. Both observations and AGCM simulations indicate that the AMV warm phase induces a zonal dipole response in sea level pressure across the Atlantic–Eurasia region, with anomalously high surface pressure and corresponding downward atmospheric motion over the TP. We propose that the descending motion during warm AMV phases causes negative rainfall and positive temperature anomalies over the TP. Our findings highlight that the AMV plays a role in the multidecadal temperature variability over the TP. |
author2 |
Capital Normal University Beijing University of Gothenburg (GU) Glaces et Continents, Climats et Isotopes Stables (GLACCIOS) Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS) University of Chinese Academy of Sciences Beijing (UCAS) Chinese Academy of Tropical Agricultural Sciences (CATAS) Institute of Tibetan Plateau Research Chinese Academy of Sciences Beijing (CAS) Institute of Forest Ecology, Environment and Protection Chinese Academy of Forestry State Forestry Administration Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Shi, Chunming Sun, Cheng Wu, Guocan Wu, Xiuchen Chen, Deliang Masson-Delmotte, Valérie Li, Jianping Xue, Jiaqing Li, Zongshan Ji, Duoying Zhang, Jing Fan, Zexin Shen, Miaogen Shu, Lifu Ciais, Philippe |
author_facet |
Shi, Chunming Sun, Cheng Wu, Guocan Wu, Xiuchen Chen, Deliang Masson-Delmotte, Valérie Li, Jianping Xue, Jiaqing Li, Zongshan Ji, Duoying Zhang, Jing Fan, Zexin Shen, Miaogen Shu, Lifu Ciais, Philippe |
author_sort |
Shi, Chunming |
title |
Summer Temperature over the Tibetan Plateau Modulated by Atlantic Multidecadal Variability |
title_short |
Summer Temperature over the Tibetan Plateau Modulated by Atlantic Multidecadal Variability |
title_full |
Summer Temperature over the Tibetan Plateau Modulated by Atlantic Multidecadal Variability |
title_fullStr |
Summer Temperature over the Tibetan Plateau Modulated by Atlantic Multidecadal Variability |
title_full_unstemmed |
Summer Temperature over the Tibetan Plateau Modulated by Atlantic Multidecadal Variability |
title_sort |
summer temperature over the tibetan plateau modulated by atlantic multidecadal variability |
publisher |
HAL CCSD |
publishDate |
2019 |
url |
https://hal.archives-ouvertes.fr/hal-02899707 https://hal.archives-ouvertes.fr/hal-02899707/document https://hal.archives-ouvertes.fr/hal-02899707/file/%5B15200442%20-%20Journal%20of%20Climate%5D%20Summer%20Temperature%20over%20the%20Tibetan%20Plateau%20Modulated%20by%20Atlantic%20Multidecadal%20Variability.pdf https://doi.org/10.1175/JCLI-D-17-0858.1 |
genre |
North Atlantic permafrost |
genre_facet |
North Atlantic permafrost |
op_source |
ISSN: 0894-8755 EISSN: 1520-0442 Journal of Climate https://hal.archives-ouvertes.fr/hal-02899707 Journal of Climate, American Meteorological Society, 2019, 32 (13), pp.4055-4067. ⟨10.1175/JCLI-D-17-0858.1⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1175/JCLI-D-17-0858.1 hal-02899707 https://hal.archives-ouvertes.fr/hal-02899707 https://hal.archives-ouvertes.fr/hal-02899707/document https://hal.archives-ouvertes.fr/hal-02899707/file/%5B15200442%20-%20Journal%20of%20Climate%5D%20Summer%20Temperature%20over%20the%20Tibetan%20Plateau%20Modulated%20by%20Atlantic%20Multidecadal%20Variability.pdf doi:10.1175/JCLI-D-17-0858.1 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1175/JCLI-D-17-0858.1 |
container_title |
Journal of Climate |
container_volume |
32 |
container_issue |
13 |
container_start_page |
4055 |
op_container_end_page |
4067 |
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1766133949723049984 |
spelling |
ftunivnantes:oai:HAL:hal-02899707v1 2023-05-15T17:34:57+02:00 Summer Temperature over the Tibetan Plateau Modulated by Atlantic Multidecadal Variability Shi, Chunming Sun, Cheng Wu, Guocan Wu, Xiuchen Chen, Deliang Masson-Delmotte, Valérie Li, Jianping Xue, Jiaqing Li, Zongshan Ji, Duoying Zhang, Jing Fan, Zexin Shen, Miaogen Shu, Lifu Ciais, Philippe Capital Normal University Beijing University of Gothenburg (GU) Glaces et Continents, Climats et Isotopes Stables (GLACCIOS) Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS) University of Chinese Academy of Sciences Beijing (UCAS) Chinese Academy of Tropical Agricultural Sciences (CATAS) Institute of Tibetan Plateau Research Chinese Academy of Sciences Beijing (CAS) Institute of Forest Ecology, Environment and Protection Chinese Academy of Forestry State Forestry Administration Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS) 2019 https://hal.archives-ouvertes.fr/hal-02899707 https://hal.archives-ouvertes.fr/hal-02899707/document https://hal.archives-ouvertes.fr/hal-02899707/file/%5B15200442%20-%20Journal%20of%20Climate%5D%20Summer%20Temperature%20over%20the%20Tibetan%20Plateau%20Modulated%20by%20Atlantic%20Multidecadal%20Variability.pdf https://doi.org/10.1175/JCLI-D-17-0858.1 en eng HAL CCSD American Meteorological Society info:eu-repo/semantics/altIdentifier/doi/10.1175/JCLI-D-17-0858.1 hal-02899707 https://hal.archives-ouvertes.fr/hal-02899707 https://hal.archives-ouvertes.fr/hal-02899707/document https://hal.archives-ouvertes.fr/hal-02899707/file/%5B15200442%20-%20Journal%20of%20Climate%5D%20Summer%20Temperature%20over%20the%20Tibetan%20Plateau%20Modulated%20by%20Atlantic%20Multidecadal%20Variability.pdf doi:10.1175/JCLI-D-17-0858.1 info:eu-repo/semantics/OpenAccess ISSN: 0894-8755 EISSN: 1520-0442 Journal of Climate https://hal.archives-ouvertes.fr/hal-02899707 Journal of Climate, American Meteorological Society, 2019, 32 (13), pp.4055-4067. ⟨10.1175/JCLI-D-17-0858.1⟩ [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere info:eu-repo/semantics/article Journal articles 2019 ftunivnantes https://doi.org/10.1175/JCLI-D-17-0858.1 2022-10-18T23:30:56Z International audience Rapid warming has led to an aggregated environmental degradation over the Tibetan Plateau (TP) in the last few decades, including accelerated glacier retreat, early snowmelt, permafrost degradation, and forest fire occurrence. Attribution of this warming in recent decades has mainly been focused on anthropogenic forcing. Yet, linkages to the Atlantic multidecadal variability (AMV), an essential part of the climate system causing decadal to centennial fluctuations of temperature, remains poorly understood for the TP, especially at long time scales. Using well-replicated tree-ring width records, we reconstructed 358 years of summer minimum temperature (MinT) of the whole TP. This reconstruction matches the recent warming signal recorded since the 1980s, and captures 63% of the variance in 1950–2005 instrumental records. A teleconnection from the North Atlantic to the TP is further identified based in observations and simulations with an atmospheric general circulation model (AGCM). We propose that half of the multidecadal variability of TP summer MinT can be explained by the AMV over the past three and a half centuries. Both observations and AGCM simulations indicate that the AMV warm phase induces a zonal dipole response in sea level pressure across the Atlantic–Eurasia region, with anomalously high surface pressure and corresponding downward atmospheric motion over the TP. We propose that the descending motion during warm AMV phases causes negative rainfall and positive temperature anomalies over the TP. Our findings highlight that the AMV plays a role in the multidecadal temperature variability over the TP. Article in Journal/Newspaper North Atlantic permafrost Université de Nantes: HAL-UNIV-NANTES Journal of Climate 32 13 4055 4067 |