Atmospheric Rivers and Mei-yu Rainfall in China: A Case Study of Summer 2020
Atmospheric rivers (ARs) are long, narrow, and transient filaments of strong horizontal water vapor transport that can lead to extreme precipitation. To investigate the relationship between ARs and mei-yu rainfall in China, the mei-yu season of 2020 in the Yangtze-Huaihe River basin is taken as an e...
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| Veröffentlicht in: | Advances in atmospheric sciences 2021-12, Vol.38 (12), p.2137-2152 |
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| description | Atmospheric rivers (ARs) are long, narrow, and transient filaments of strong horizontal water vapor transport that can lead to extreme precipitation. To investigate the relationship between ARs and mei-yu rainfall in China, the mei-yu season of 2020 in the Yangtze-Huaihe River basin is taken as an example. An adjusted AR-detection algorithm is applied on integrated water vapor transport (IVT) of the ERA5 reanalysis. The JRA-55 reanalysis and the data from Integrated Multi-satellite Retrievals for GPM (IMERG) are also utilized to study the impacts of ARs on mei-yu rainfall in 2020. The results reveal that ARs in East Asia have an average length of 5400 km, a width of 600 km, a length/width ratio of 9.3, and a northeastward orientation of 30°. ARs are modulated by the western North Pacific subtropical high. The IVT core is located at the south side of low pressure systems, moving eastward with a speed of 10° d
−1
. For the cross sections of ARs in the Yangtze-Huaihe River basin, 75% of the total flux is concentrated below 4 km with low-level jets near AR cores. Moreover, ARs occur mainly in the mei-yu period with a frequency of 20%–60%. The intensity of AR-related precipitation is 6–12 times that of AR-unrelated precipitation, and AR-related precipitation contributes about 50%–80% to total mei-yu precipitation. As shown in this case study of summer 2020, ARs are an essential part of the mei-yu system and have great impacts on mei-yu rainfall. Thus, ARs should receive more attention in research and weather forecast practices. |
| doi_str_mv | 10.1007/s00376-021-1096-9 |
| format | Article |
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−1
. For the cross sections of ARs in the Yangtze-Huaihe River basin, 75% of the total flux is concentrated below 4 km with low-level jets near AR cores. Moreover, ARs occur mainly in the mei-yu period with a frequency of 20%–60%. The intensity of AR-related precipitation is 6–12 times that of AR-unrelated precipitation, and AR-related precipitation contributes about 50%–80% to total mei-yu precipitation. As shown in this case study of summer 2020, ARs are an essential part of the mei-yu system and have great impacts on mei-yu rainfall. Thus, ARs should receive more attention in research and weather forecast practices.</description><identifier>ISSN: 0256-1530</identifier><identifier>EISSN: 1861-9533</identifier><identifier>DOI: 10.1007/s00376-021-1096-9</identifier><language>eng</language><publisher>Heidelberg: Science Press</publisher><subject>Algorithms ; Atmospheric precipitations ; Atmospheric Sciences ; Case studies ; Earth and Environmental Science ; Earth Sciences ; Extreme weather ; Filaments ; Geophysics/Geodesy ; Low pressure ; Low pressure systems ; Low-level jets ; Mei-yu rainfall ; Meteorology ; Original Paper ; Precipitation ; Predictability and Impacts ; Rain ; Rainfall ; River basins ; Rivers ; Summer ; Summer 2020: Record Rainfall in Asia — Mechanisms ; Transport ; Water vapor ; Water vapor transport ; Water vapour ; Weather forecasting ; Width</subject><ispartof>Advances in atmospheric sciences, 2021-12, Vol.38 (12), p.2137-2152</ispartof><rights>Institute of Atmospheric Physics/Chinese Academy of Sciences, and Science Press and Springer-Verlag GmbH Germany, part of Springer Nature 2021</rights><rights>Institute of Atmospheric Physics/Chinese Academy of Sciences, and Science Press and Springer-Verlag GmbH Germany, part of Springer Nature 2021.</rights><rights>Copyright © Wanfang Data Co. Ltd. All Rights Reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c398t-a27a689caf7ef094fbd23a911e1432bdedfbdb58625e71967532aec3003a08bd3</citedby><cites>FETCH-LOGICAL-c398t-a27a689caf7ef094fbd23a911e1432bdedfbdb58625e71967532aec3003a08bd3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Uhttp://www.wanfangdata.com.cn/images/PeriodicalImages/dqkxjz-e/dqkxjz-e.jpg</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s00376-021-1096-9$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s00376-021-1096-9$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,780,784,27922,27923,41486,42555,51317</link.rule.ids></links><search><creatorcontrib>Wang, Ting</creatorcontrib><creatorcontrib>Wei, Ke</creatorcontrib><creatorcontrib>Ma, Jiao</creatorcontrib><title>Atmospheric Rivers and Mei-yu Rainfall in China: A Case Study of Summer 2020</title><title>Advances in atmospheric sciences</title><addtitle>Adv. Atmos. Sci</addtitle><description>Atmospheric rivers (ARs) are long, narrow, and transient filaments of strong horizontal water vapor transport that can lead to extreme precipitation. To investigate the relationship between ARs and mei-yu rainfall in China, the mei-yu season of 2020 in the Yangtze-Huaihe River basin is taken as an example. An adjusted AR-detection algorithm is applied on integrated water vapor transport (IVT) of the ERA5 reanalysis. The JRA-55 reanalysis and the data from Integrated Multi-satellite Retrievals for GPM (IMERG) are also utilized to study the impacts of ARs on mei-yu rainfall in 2020. The results reveal that ARs in East Asia have an average length of 5400 km, a width of 600 km, a length/width ratio of 9.3, and a northeastward orientation of 30°. ARs are modulated by the western North Pacific subtropical high. The IVT core is located at the south side of low pressure systems, moving eastward with a speed of 10° d
−1
. For the cross sections of ARs in the Yangtze-Huaihe River basin, 75% of the total flux is concentrated below 4 km with low-level jets near AR cores. Moreover, ARs occur mainly in the mei-yu period with a frequency of 20%–60%. The intensity of AR-related precipitation is 6–12 times that of AR-unrelated precipitation, and AR-related precipitation contributes about 50%–80% to total mei-yu precipitation. As shown in this case study of summer 2020, ARs are an essential part of the mei-yu system and have great impacts on mei-yu rainfall. Thus, ARs should receive more attention in research and weather forecast practices.</description><subject>Algorithms</subject><subject>Atmospheric precipitations</subject><subject>Atmospheric Sciences</subject><subject>Case studies</subject><subject>Earth and Environmental Science</subject><subject>Earth Sciences</subject><subject>Extreme weather</subject><subject>Filaments</subject><subject>Geophysics/Geodesy</subject><subject>Low pressure</subject><subject>Low pressure systems</subject><subject>Low-level jets</subject><subject>Mei-yu rainfall</subject><subject>Meteorology</subject><subject>Original Paper</subject><subject>Precipitation</subject><subject>Predictability and Impacts</subject><subject>Rain</subject><subject>Rainfall</subject><subject>River basins</subject><subject>Rivers</subject><subject>Summer</subject><subject>Summer 2020: Record Rainfall in Asia — Mechanisms</subject><subject>Transport</subject><subject>Water vapor</subject><subject>Water vapor transport</subject><subject>Water vapour</subject><subject>Weather forecasting</subject><subject>Width</subject><issn>0256-1530</issn><issn>1861-9533</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><recordid>eNp1kF9LwzAUxYMoOKcfwLeATz5E703WtPFtFP_BRNj0OaRtunWu7Zas6vz0ZlTYk08XDr9z7uEQcolwgwDxrQcQsWTAkSEoydQRGWAikalIiGMyAB5JhpGAU3Lm_TLQSiQ4IJPxtm79emFdldNp9Wmdp6Yp6Iut2K6jU1M1pVmtaNXQdFE15o6OaWq8pbNtV-xoW9JZV9fWUQ4czslJgL29-LtD8v5w_5Y-scnr43M6nrBcqGTLDI-NTFRuytiWoEZlVnBhFKLFkeBZYYugZFEieWRjVDKOBDc2F6G0gSQrxJBc97lfJrRr5nrZdq4JH3Wx-fhe_mgb2iByQBHYq55du3bTWb89wDxSEiKhpAoU9lTuWu-dLfXaVbVxO42g9wPrfmAdcvV-YL338N7jA9vMrTsk_2_6BRDlevw</recordid><startdate>20211201</startdate><enddate>20211201</enddate><creator>Wang, Ting</creator><creator>Wei, Ke</creator><creator>Ma, Jiao</creator><general>Science Press</general><general>Springer Nature B.V</general><general>College of Earth and Planetary Sciences,University of Chinese Academy of Sciences,Beijing 100049,China%Center for Monsoon System Research,Institute of Atmospheric Physics, Chinese Academy of Sciences,Beijing 100029,China</general><general>Center for Monsoon System Research,Institute of Atmospheric Physics, Chinese Academy of Sciences,Beijing 100029,China</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7TG</scope><scope>F1W</scope><scope>H96</scope><scope>KL.</scope><scope>L.G</scope><scope>2B.</scope><scope>4A8</scope><scope>92I</scope><scope>93N</scope><scope>PSX</scope><scope>TCJ</scope></search><sort><creationdate>20211201</creationdate><title>Atmospheric Rivers and Mei-yu Rainfall in China: A Case Study of Summer 2020</title><author>Wang, Ting ; Wei, Ke ; Ma, Jiao</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c398t-a27a689caf7ef094fbd23a911e1432bdedfbdb58625e71967532aec3003a08bd3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Algorithms</topic><topic>Atmospheric precipitations</topic><topic>Atmospheric Sciences</topic><topic>Case studies</topic><topic>Earth and Environmental Science</topic><topic>Earth Sciences</topic><topic>Extreme weather</topic><topic>Filaments</topic><topic>Geophysics/Geodesy</topic><topic>Low pressure</topic><topic>Low pressure systems</topic><topic>Low-level jets</topic><topic>Mei-yu rainfall</topic><topic>Meteorology</topic><topic>Original Paper</topic><topic>Precipitation</topic><topic>Predictability and Impacts</topic><topic>Rain</topic><topic>Rainfall</topic><topic>River basins</topic><topic>Rivers</topic><topic>Summer</topic><topic>Summer 2020: Record Rainfall in Asia — Mechanisms</topic><topic>Transport</topic><topic>Water vapor</topic><topic>Water vapor transport</topic><topic>Water vapour</topic><topic>Weather forecasting</topic><topic>Width</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Wang, Ting</creatorcontrib><creatorcontrib>Wei, Ke</creatorcontrib><creatorcontrib>Ma, Jiao</creatorcontrib><collection>CrossRef</collection><collection>Meteorological & Geoastrophysical Abstracts</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>Meteorological & Geoastrophysical Abstracts - Academic</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Wanfang Data Journals - Hong Kong</collection><collection>WANFANG Data Centre</collection><collection>Wanfang Data Journals</collection><collection>万方数据期刊 - 香港版</collection><collection>China Online Journals (COJ)</collection><collection>China Online Journals (COJ)</collection><jtitle>Advances in atmospheric sciences</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Wang, Ting</au><au>Wei, Ke</au><au>Ma, Jiao</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Atmospheric Rivers and Mei-yu Rainfall in China: A Case Study of Summer 2020</atitle><jtitle>Advances in atmospheric sciences</jtitle><stitle>Adv. Atmos. Sci</stitle><date>2021-12-01</date><risdate>2021</risdate><volume>38</volume><issue>12</issue><spage>2137</spage><epage>2152</epage><pages>2137-2152</pages><issn>0256-1530</issn><eissn>1861-9533</eissn><abstract>Atmospheric rivers (ARs) are long, narrow, and transient filaments of strong horizontal water vapor transport that can lead to extreme precipitation. To investigate the relationship between ARs and mei-yu rainfall in China, the mei-yu season of 2020 in the Yangtze-Huaihe River basin is taken as an example. An adjusted AR-detection algorithm is applied on integrated water vapor transport (IVT) of the ERA5 reanalysis. The JRA-55 reanalysis and the data from Integrated Multi-satellite Retrievals for GPM (IMERG) are also utilized to study the impacts of ARs on mei-yu rainfall in 2020. The results reveal that ARs in East Asia have an average length of 5400 km, a width of 600 km, a length/width ratio of 9.3, and a northeastward orientation of 30°. ARs are modulated by the western North Pacific subtropical high. The IVT core is located at the south side of low pressure systems, moving eastward with a speed of 10° d
−1
. For the cross sections of ARs in the Yangtze-Huaihe River basin, 75% of the total flux is concentrated below 4 km with low-level jets near AR cores. Moreover, ARs occur mainly in the mei-yu period with a frequency of 20%–60%. The intensity of AR-related precipitation is 6–12 times that of AR-unrelated precipitation, and AR-related precipitation contributes about 50%–80% to total mei-yu precipitation. As shown in this case study of summer 2020, ARs are an essential part of the mei-yu system and have great impacts on mei-yu rainfall. Thus, ARs should receive more attention in research and weather forecast practices.</abstract><cop>Heidelberg</cop><pub>Science Press</pub><doi>10.1007/s00376-021-1096-9</doi><tpages>16</tpages></addata></record> |
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| subjects | Algorithms Atmospheric precipitations Atmospheric Sciences Case studies Earth and Environmental Science Earth Sciences Extreme weather Filaments Geophysics/Geodesy Low pressure Low pressure systems Low-level jets Mei-yu rainfall Meteorology Original Paper Precipitation Predictability and Impacts Rain Rainfall River basins Rivers Summer Summer 2020: Record Rainfall in Asia — Mechanisms Transport Water vapor Water vapor transport Water vapour Weather forecasting Width |
| title | Atmospheric Rivers and Mei-yu Rainfall in China: A Case Study of Summer 2020 |
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