An emerging impact of Eurasian spring snow cover on summer rainfall in Eastern China
International audience Eurasian spring snow cover is widely considered as an important predictor of Asian summer monsoon rainfall, but its possible role in the formation of the north-south dipole structure of rainfall anomalies (NSDR)-a major mode of the eastern China summer rainfall variability-rem...
Published in: | Environmental Research Letters |
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Online Access: | https://hal.science/hal-03633126 https://hal.science/hal-03633126/document https://hal.science/hal-03633126/file/ZhangEA_EmergingImpactEurasianSpringSnowCoverEasternChina_ERL2021.pdf https://doi.org/10.1088/1748-9326/abf688 |
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ftunigrenoble:oai:HAL:hal-03633126v1 2024-06-23T07:55:02+00:00 An emerging impact of Eurasian spring snow cover on summer rainfall in Eastern China Zhang, Taotao Wang, Tao Feng, Yingying Li, Xichen Krinner, Gerhard Institute of Tibetan Plateau Research Chinese Academy of Sciences Beijing (CAS) University of Chinese Academy of Sciences Beijing (UCAS) Institute of Atmospheric Physics Beijing (IAP) Institut des Géosciences de l’Environnement (IGE) Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ) Université Grenoble Alpes (UGA) 2021 https://hal.science/hal-03633126 https://hal.science/hal-03633126/document https://hal.science/hal-03633126/file/ZhangEA_EmergingImpactEurasianSpringSnowCoverEasternChina_ERL2021.pdf https://doi.org/10.1088/1748-9326/abf688 en eng HAL CCSD IOP Publishing info:eu-repo/semantics/altIdentifier/doi/10.1088/1748-9326/abf688 hal-03633126 https://hal.science/hal-03633126 https://hal.science/hal-03633126/document https://hal.science/hal-03633126/file/ZhangEA_EmergingImpactEurasianSpringSnowCoverEasternChina_ERL2021.pdf doi:10.1088/1748-9326/abf688 info:eu-repo/semantics/OpenAccess ISSN: 1748-9326 Environmental Research Letters https://hal.science/hal-03633126 Environmental Research Letters, 2021, 16, pp.054012. ⟨10.1088/1748-9326/abf688⟩ Eurasian snow cover Eastern China summer rainfall summer North Atlantic Oscillation emerging impact [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology [SDE]Environmental Sciences info:eu-repo/semantics/article Journal articles 2021 ftunigrenoble https://doi.org/10.1088/1748-9326/abf688 2024-06-04T00:07:43Z International audience Eurasian spring snow cover is widely considered as an important predictor of Asian summer monsoon rainfall, but its possible role in the formation of the north-south dipole structure of rainfall anomalies (NSDR)-a major mode of the eastern China summer rainfall variability-remains elusive. Here, we show that, there is a close connection between the western Eurasian spring snow cover (WESS) and NSDR during our research period 1967-2018, with less WESS tends to be accompanied by a wetter south-drier north pattern over eastern China, and vice versa. However, this relationship was not significant before the late 1990s, but has since become significant. Further analyses demonstrate that the shift in the WESS-NSDR relationship could be attributed to the modulation of summer North Atlantic Oscillation (SNAO). After the late 1990s, the WESS-related anomalous atmospheric circulations during summer are largely reinforced by the constructive superposition of those with same signs induced by SNAO, which in turn would intensify the impact of WESS and hence lead to a strong WESS-NSDR connection. In contrast, the influences of WESS are counteracted by those with opposite signs associated with SNAO before the late 1990s and thereby result in a weak snow-rainfall relationship. Our findings, along with the decline in Eurasian spring snow cover, provide a potential explanation for the recent 'South Flood-North Drought' pattern observed over eastern China. Article in Journal/Newspaper North Atlantic North Atlantic oscillation Université Grenoble Alpes: HAL Environmental Research Letters 16 5 054012 |
institution |
Open Polar |
collection |
Université Grenoble Alpes: HAL |
op_collection_id |
ftunigrenoble |
language |
English |
topic |
Eurasian snow cover Eastern China summer rainfall summer North Atlantic Oscillation emerging impact [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology [SDE]Environmental Sciences |
spellingShingle |
Eurasian snow cover Eastern China summer rainfall summer North Atlantic Oscillation emerging impact [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology [SDE]Environmental Sciences Zhang, Taotao Wang, Tao Feng, Yingying Li, Xichen Krinner, Gerhard An emerging impact of Eurasian spring snow cover on summer rainfall in Eastern China |
topic_facet |
Eurasian snow cover Eastern China summer rainfall summer North Atlantic Oscillation emerging impact [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology [SDE]Environmental Sciences |
description |
International audience Eurasian spring snow cover is widely considered as an important predictor of Asian summer monsoon rainfall, but its possible role in the formation of the north-south dipole structure of rainfall anomalies (NSDR)-a major mode of the eastern China summer rainfall variability-remains elusive. Here, we show that, there is a close connection between the western Eurasian spring snow cover (WESS) and NSDR during our research period 1967-2018, with less WESS tends to be accompanied by a wetter south-drier north pattern over eastern China, and vice versa. However, this relationship was not significant before the late 1990s, but has since become significant. Further analyses demonstrate that the shift in the WESS-NSDR relationship could be attributed to the modulation of summer North Atlantic Oscillation (SNAO). After the late 1990s, the WESS-related anomalous atmospheric circulations during summer are largely reinforced by the constructive superposition of those with same signs induced by SNAO, which in turn would intensify the impact of WESS and hence lead to a strong WESS-NSDR connection. In contrast, the influences of WESS are counteracted by those with opposite signs associated with SNAO before the late 1990s and thereby result in a weak snow-rainfall relationship. Our findings, along with the decline in Eurasian spring snow cover, provide a potential explanation for the recent 'South Flood-North Drought' pattern observed over eastern China. |
author2 |
Institute of Tibetan Plateau Research Chinese Academy of Sciences Beijing (CAS) University of Chinese Academy of Sciences Beijing (UCAS) Institute of Atmospheric Physics Beijing (IAP) Institut des Géosciences de l’Environnement (IGE) Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ) Université Grenoble Alpes (UGA) |
format |
Article in Journal/Newspaper |
author |
Zhang, Taotao Wang, Tao Feng, Yingying Li, Xichen Krinner, Gerhard |
author_facet |
Zhang, Taotao Wang, Tao Feng, Yingying Li, Xichen Krinner, Gerhard |
author_sort |
Zhang, Taotao |
title |
An emerging impact of Eurasian spring snow cover on summer rainfall in Eastern China |
title_short |
An emerging impact of Eurasian spring snow cover on summer rainfall in Eastern China |
title_full |
An emerging impact of Eurasian spring snow cover on summer rainfall in Eastern China |
title_fullStr |
An emerging impact of Eurasian spring snow cover on summer rainfall in Eastern China |
title_full_unstemmed |
An emerging impact of Eurasian spring snow cover on summer rainfall in Eastern China |
title_sort |
emerging impact of eurasian spring snow cover on summer rainfall in eastern china |
publisher |
HAL CCSD |
publishDate |
2021 |
url |
https://hal.science/hal-03633126 https://hal.science/hal-03633126/document https://hal.science/hal-03633126/file/ZhangEA_EmergingImpactEurasianSpringSnowCoverEasternChina_ERL2021.pdf https://doi.org/10.1088/1748-9326/abf688 |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_source |
ISSN: 1748-9326 Environmental Research Letters https://hal.science/hal-03633126 Environmental Research Letters, 2021, 16, pp.054012. ⟨10.1088/1748-9326/abf688⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1088/1748-9326/abf688 hal-03633126 https://hal.science/hal-03633126 https://hal.science/hal-03633126/document https://hal.science/hal-03633126/file/ZhangEA_EmergingImpactEurasianSpringSnowCoverEasternChina_ERL2021.pdf doi:10.1088/1748-9326/abf688 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1088/1748-9326/abf688 |
container_title |
Environmental Research Letters |
container_volume |
16 |
container_issue |
5 |
container_start_page |
054012 |
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1802647441031299072 |