Summertime Moisture Sources and Transportation Pathways for China and Associated Atmospheric Circulation Patterns
Based on the Lagrangian particle dispersion model, HYSPLIT 4.9, this study analyzed the summertime atmospheric moisture sources and transportation pathways affecting six subregions across China. The sources were: Midlatitude Westerly (MLW), Siberian-Arctic regions (SibArc), Okhotsk Sea (OKS), Indian...
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crfrontiers:10.3389/feart.2021.756943 2024-03-03T08:42:20+00:00 Summertime Moisture Sources and Transportation Pathways for China and Associated Atmospheric Circulation Patterns Zhang, Ruonan Chu, QuCheng Zuo, Zhiyan Qi, Yanjun National Key Research and Development Program of China National Natural Science Foundation of China-China Academy of General Technology Joint Fund for Basic Research 2021 http://dx.doi.org/10.3389/feart.2021.756943 https://www.frontiersin.org/articles/10.3389/feart.2021.756943/full unknown Frontiers Media SA https://creativecommons.org/licenses/by/4.0/ Frontiers in Earth Science volume 9 ISSN 2296-6463 General Earth and Planetary Sciences journal-article 2021 crfrontiers https://doi.org/10.3389/feart.2021.756943 2024-02-03T23:18:08Z Based on the Lagrangian particle dispersion model, HYSPLIT 4.9, this study analyzed the summertime atmospheric moisture sources and transportation pathways affecting six subregions across China. The sources were: Midlatitude Westerly (MLW), Siberian-Arctic regions (SibArc), Okhotsk Sea (OKS), Indian Ocean (IO), South China Sea (SCS), Pacific Ocean (PO), and China Mainland (CN). Furthermore, the relative contributions of these seven moisture sources to summertime precipitation in China were quantitatively assessed. Results showed that the CN precipitation source dominates the interannual and interdecadal variation of precipitation in most subregions, except Southwest and South China. The Northeast China vortex and Pacific–Japan (PJ) teleconnection, which transport water vapor from the MLW, OKS and PO sources, are crucial atmospheric systems and patterns for the variation of precipitation in Northeast China. The interannual variation of precipitation in Northwest and North China is mainly dominated by mid–high-latitude Eurasian wave trains, which provide the necessary dynamical conditions and associated moisture transport from the MLW and SibArc sources. In addition, an enhanced western North Pacific subtropical high (WNPSH) accompanied by the East Asian–western North Pacific summer monsoon and PJ teleconnection, transports extra moisture to North China from the SCS and PO sources, as well to the Yangtze River Valley and South China. The Indian summer monsoon (ISM) is also critically important for the interdecadal change in precipitation over the Yangtze River Valley and South China, via the southwesterly branch of moisture transport from the IO source. The interdecadal changes in precipitation over Southwest China are determined by the IO and SCS sources, via enhanced WNPSH coupling with a weakened ISM. These results suggest that the interdecadal and interannual variations of moisture sources contribute to the attendant variation of summertime precipitation in China via large-scale circulation regimes in both the ... Article in Journal/Newspaper Arctic okhotsk sea Frontiers (Publisher) Arctic Okhotsk Pacific Indian Frontiers in Earth Science 9 |
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General Earth and Planetary Sciences |
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General Earth and Planetary Sciences Zhang, Ruonan Chu, QuCheng Zuo, Zhiyan Qi, Yanjun Summertime Moisture Sources and Transportation Pathways for China and Associated Atmospheric Circulation Patterns |
topic_facet |
General Earth and Planetary Sciences |
description |
Based on the Lagrangian particle dispersion model, HYSPLIT 4.9, this study analyzed the summertime atmospheric moisture sources and transportation pathways affecting six subregions across China. The sources were: Midlatitude Westerly (MLW), Siberian-Arctic regions (SibArc), Okhotsk Sea (OKS), Indian Ocean (IO), South China Sea (SCS), Pacific Ocean (PO), and China Mainland (CN). Furthermore, the relative contributions of these seven moisture sources to summertime precipitation in China were quantitatively assessed. Results showed that the CN precipitation source dominates the interannual and interdecadal variation of precipitation in most subregions, except Southwest and South China. The Northeast China vortex and Pacific–Japan (PJ) teleconnection, which transport water vapor from the MLW, OKS and PO sources, are crucial atmospheric systems and patterns for the variation of precipitation in Northeast China. The interannual variation of precipitation in Northwest and North China is mainly dominated by mid–high-latitude Eurasian wave trains, which provide the necessary dynamical conditions and associated moisture transport from the MLW and SibArc sources. In addition, an enhanced western North Pacific subtropical high (WNPSH) accompanied by the East Asian–western North Pacific summer monsoon and PJ teleconnection, transports extra moisture to North China from the SCS and PO sources, as well to the Yangtze River Valley and South China. The Indian summer monsoon (ISM) is also critically important for the interdecadal change in precipitation over the Yangtze River Valley and South China, via the southwesterly branch of moisture transport from the IO source. The interdecadal changes in precipitation over Southwest China are determined by the IO and SCS sources, via enhanced WNPSH coupling with a weakened ISM. These results suggest that the interdecadal and interannual variations of moisture sources contribute to the attendant variation of summertime precipitation in China via large-scale circulation regimes in both the ... |
author2 |
National Key Research and Development Program of China National Natural Science Foundation of China-China Academy of General Technology Joint Fund for Basic Research |
format |
Article in Journal/Newspaper |
author |
Zhang, Ruonan Chu, QuCheng Zuo, Zhiyan Qi, Yanjun |
author_facet |
Zhang, Ruonan Chu, QuCheng Zuo, Zhiyan Qi, Yanjun |
author_sort |
Zhang, Ruonan |
title |
Summertime Moisture Sources and Transportation Pathways for China and Associated Atmospheric Circulation Patterns |
title_short |
Summertime Moisture Sources and Transportation Pathways for China and Associated Atmospheric Circulation Patterns |
title_full |
Summertime Moisture Sources and Transportation Pathways for China and Associated Atmospheric Circulation Patterns |
title_fullStr |
Summertime Moisture Sources and Transportation Pathways for China and Associated Atmospheric Circulation Patterns |
title_full_unstemmed |
Summertime Moisture Sources and Transportation Pathways for China and Associated Atmospheric Circulation Patterns |
title_sort |
summertime moisture sources and transportation pathways for china and associated atmospheric circulation patterns |
publisher |
Frontiers Media SA |
publishDate |
2021 |
url |
http://dx.doi.org/10.3389/feart.2021.756943 https://www.frontiersin.org/articles/10.3389/feart.2021.756943/full |
geographic |
Arctic Okhotsk Pacific Indian |
geographic_facet |
Arctic Okhotsk Pacific Indian |
genre |
Arctic okhotsk sea |
genre_facet |
Arctic okhotsk sea |
op_source |
Frontiers in Earth Science volume 9 ISSN 2296-6463 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3389/feart.2021.756943 |
container_title |
Frontiers in Earth Science |
container_volume |
9 |
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1792497739719770112 |