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    Tracking moisture sources of precipitation over Central Asia: A study based on the water source-tagging method

    Source: Journal of Climate:;2020:;volume( ):;issue: -::page 1
    Author:
    Jiang, Jie;Zhou, Tianjun;Wang, Hailong;Qian, Yun;Noone, David;Man, Wenmin
    DOI: 10.1175/JCLI-D-20-0169.1
    Publisher: American Meteorological Society
    Abstract: Central Asia is a semiarid to arid region that is sensitive to hydrological changes. We use the Community Atmosphere Model version 5 (CAM5), equipped with a water tagging capability, to investigate the major moisture sources for climatological precipitation and its long-term trends over Central Asia. Europe, the North Atlantic and local evaporation, which explain 33.2±1.5%, 23.0±2.5% and 19.4±2.2% of the precipitation, respectively, are identified as the most dominant moisture sources for northern Central Asia (NCA). For precipitation over southern Central Asia (SCA), Europe, the North Atlantic and local evaporation contribute 25.4±2.7%, 18.0±1.7% and 14.7±1.9%, respectively. In addition, the contributions of South Asia (8.6±1.7%) and the Indian Ocean (9.5±2.0%) are also substantial for SCA. Modulated by the seasonal meridional shift in the subtropical westerly jet, moisture originating from low- and midlatitude is important in winter, spring and autumn, while northern Europe contributes more to summer precipitation. We also explain the observed drying trends over southeastern Central Asia in spring and over NCA in summer during 1956-2005. The drying trend over southeastern Central Asia in spring is mainly due to the decrease in local evaporation and weakened moisture fluxes from the Arabian Peninsula and Arabian Sea associated with the warming of the western Pacific. The drying trend over NCA in summer can be attributed to the decrease in local evaporation and reduced moisture from northern Europe due to the southward shift of the subtropical westerly jet.
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      Tracking moisture sources of precipitation over Central Asia: A study based on the water source-tagging method

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4264342
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    contributor authorJiang, Jie;Zhou, Tianjun;Wang, Hailong;Qian, Yun;Noone, David;Man, Wenmin
    date accessioned2022-01-30T18:00:42Z
    date available2022-01-30T18:00:42Z
    date copyright8/14/2020 12:00:00 AM
    date issued2020
    identifier issn0894-8755
    identifier otherjclid200169.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4264342
    description abstractCentral Asia is a semiarid to arid region that is sensitive to hydrological changes. We use the Community Atmosphere Model version 5 (CAM5), equipped with a water tagging capability, to investigate the major moisture sources for climatological precipitation and its long-term trends over Central Asia. Europe, the North Atlantic and local evaporation, which explain 33.2±1.5%, 23.0±2.5% and 19.4±2.2% of the precipitation, respectively, are identified as the most dominant moisture sources for northern Central Asia (NCA). For precipitation over southern Central Asia (SCA), Europe, the North Atlantic and local evaporation contribute 25.4±2.7%, 18.0±1.7% and 14.7±1.9%, respectively. In addition, the contributions of South Asia (8.6±1.7%) and the Indian Ocean (9.5±2.0%) are also substantial for SCA. Modulated by the seasonal meridional shift in the subtropical westerly jet, moisture originating from low- and midlatitude is important in winter, spring and autumn, while northern Europe contributes more to summer precipitation. We also explain the observed drying trends over southeastern Central Asia in spring and over NCA in summer during 1956-2005. The drying trend over southeastern Central Asia in spring is mainly due to the decrease in local evaporation and weakened moisture fluxes from the Arabian Peninsula and Arabian Sea associated with the warming of the western Pacific. The drying trend over NCA in summer can be attributed to the decrease in local evaporation and reduced moisture from northern Europe due to the southward shift of the subtropical westerly jet.
    publisherAmerican Meteorological Society
    titleTracking moisture sources of precipitation over Central Asia: A study based on the water source-tagging method
    typeJournal Paper
    journal titleJournal of Climate
    identifier doi10.1175/JCLI-D-20-0169.1
    journal fristpage1
    journal lastpage51
    treeJournal of Climate:;2020:;volume( ):;issue: -
    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