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    The Definition and Characteristics of Regional Rainfall Events Demonstrated by Warm Season Precipitation over the Beijing Plain

    Source: Journal of Hydrometeorology:;2014:;Volume( 016 ):;issue: 001::page 396
    Author:
    Yu, Rucong
    ,
    Chen, Haoming
    ,
    Sun, Wei
    DOI: 10.1175/JHM-D-14-0086.1
    Publisher: American Meteorological Society
    Abstract: n this study, a regional rainfall event (RRE) is defined by observed rainfall at multiple, well-distributed stations in a given area. Meanwhile, a regional rainfall coefficient (RRC), which could be used to classify local rain (LR) and regional rain (RR) in the given area, is defined to quantify the spatiotemporal variation of rainfall events. As a key parameter describing the spread of rainfall, RRC, together with duration and intensity, presents an effort to explore more complete spatiotemporal organization and evolution of RREs. Preliminary analyses of RREs over the Beijing plain reveal new, interesting characteristics of rainfall. The RRC of RRE increases with longer duration and stronger intensity. Most of the RREs with maximum peak rainfall intensity below 2 mm h?1 or duration shorter than 3 h have RRC less than 0.4, indicating that these events are not uniformly spread over the region. Thus, they are reasonably classified into LR. RREs with RRC above 0.5 could be classified into RR, which usually lasts longer than 4 h and has primary peak rainfall occurring from 1700 to 0600 LST. For most of the intense long-duration RR, evolutions of RRC and rainfall intensity are not consistent. The RRC reaches a maximum a few hours after the peak intensity was reached. The results of this study enrich the understanding of rainfall processes and provide new insight into understanding and quantifying the space?time characteristics of rainfall. These findings have great potential to further evaluate cloud and precipitation physics as well as their parameterizations in numerical models.
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      The Definition and Characteristics of Regional Rainfall Events Demonstrated by Warm Season Precipitation over the Beijing Plain

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4225184
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    contributor authorYu, Rucong
    contributor authorChen, Haoming
    contributor authorSun, Wei
    date accessioned2017-06-09T17:16:01Z
    date available2017-06-09T17:16:01Z
    date copyright2015/02/01
    date issued2014
    identifier issn1525-755X
    identifier otherams-82106.pdf
    identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4225184
    description abstractn this study, a regional rainfall event (RRE) is defined by observed rainfall at multiple, well-distributed stations in a given area. Meanwhile, a regional rainfall coefficient (RRC), which could be used to classify local rain (LR) and regional rain (RR) in the given area, is defined to quantify the spatiotemporal variation of rainfall events. As a key parameter describing the spread of rainfall, RRC, together with duration and intensity, presents an effort to explore more complete spatiotemporal organization and evolution of RREs. Preliminary analyses of RREs over the Beijing plain reveal new, interesting characteristics of rainfall. The RRC of RRE increases with longer duration and stronger intensity. Most of the RREs with maximum peak rainfall intensity below 2 mm h?1 or duration shorter than 3 h have RRC less than 0.4, indicating that these events are not uniformly spread over the region. Thus, they are reasonably classified into LR. RREs with RRC above 0.5 could be classified into RR, which usually lasts longer than 4 h and has primary peak rainfall occurring from 1700 to 0600 LST. For most of the intense long-duration RR, evolutions of RRC and rainfall intensity are not consistent. The RRC reaches a maximum a few hours after the peak intensity was reached. The results of this study enrich the understanding of rainfall processes and provide new insight into understanding and quantifying the space?time characteristics of rainfall. These findings have great potential to further evaluate cloud and precipitation physics as well as their parameterizations in numerical models.
    publisherAmerican Meteorological Society
    titleThe Definition and Characteristics of Regional Rainfall Events Demonstrated by Warm Season Precipitation over the Beijing Plain
    typeJournal Paper
    journal volume16
    journal issue1
    journal titleJournal of Hydrometeorology
    identifier doi10.1175/JHM-D-14-0086.1
    journal fristpage396
    journal lastpage406
    treeJournal of Hydrometeorology:;2014:;Volume( 016 ):;issue: 001
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
    yabeshDSpacePersian