Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.5194/acp-17-13731-2017 |
Direct radiative effects of dust aerosols emitted from the Tibetan Plateau on the East Asian summer monsoon - a regional climate model simulation | |
Sun, Hui1; Liu, Xiaodong1,2; Pan, Zaitao3,4 | |
通讯作者 | Sun, Hui |
来源期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS |
ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2017 |
卷号 | 17期号:22页码:13731-13745 |
英文摘要 | While dust aerosols emitted from major Asian sources such as Taklimakan and Gobi deserts have been shown to have strong effect on Asian monsoon and climate, the role of dust emitted from Tibetan Plateau (TP) itself, where aerosols can directly interact with the TP "heat pump" because of their physical proximity both in location and elevation, has not been examined. This study uses the dustcoupled RegCM4.1 regional climate model (RCM) to simulate the spatiotemporal distribution of dust aerosols originating within the TP and their radiative effects on the East Asian summer monsoon (EASM) during both heavy and light dust years. Two 20-year simulations with and without the dust emission from TP showed that direct radiative cooling in the mid-troposphere induced by the TP locally produced dust aerosols resulted in an overall anticyclonic circulation anomaly in the low troposphere centered over the TP region. The northeasterly anomaly in the EASM region reduces its strength considerably. The simulations found a significant negative correlation between the TP column dust load produced by local emissions and the corresponding anomaly in the EASM index (r = -0.46). The locally generated TP dust can cause surface cooling far downstream in Bohai Gulf and the China-North Korea border area through stationary Rossby wave propagation. Although dust from within TP (mainly Qaidam Basin) is a relatively small portion of total Asian aerosols, its impacts on Asian monsoon and climate seems disproportionately large, likely owning to its higher elevation within TP itself. |
类型 | Article |
语种 | 英语 |
国家 | Peoples R China ; USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000430450800001 |
WOS关键词 | ANTHROPOGENIC AEROSOLS ; MINERAL DUST ; OPTICAL-PROPERTIES ; TAKLIMAKAN DUST ; IMPACT ; TRANSPORT ; SENSITIVITY ; RESOLUTION ; EMISSION ; FEEDBACK |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
来源机构 | 中国科学院地球环境研究所 ; 南京信息工程大学 |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/197641 |
作者单位 | 1.Chinese Acad Sci, Inst Earth Environm, SKLLQG, Xian 710061, Shaanxi, Peoples R China; 2.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China; 3.St Louis Univ, Dept Earth & Atmospher Sci, St Louis, MO 63108 USA; 4.Nanjing Univ Informat Sci & Technol, Minist Educ, Key Lab Meteorol Disaster, Nanjing, Jiangsu, Peoples R China |
推荐引用方式 GB/T 7714 | Sun, Hui,Liu, Xiaodong,Pan, Zaitao. Direct radiative effects of dust aerosols emitted from the Tibetan Plateau on the East Asian summer monsoon - a regional climate model simulation[J]. 中国科学院地球环境研究所, 南京信息工程大学,2017,17(22):13731-13745. |
APA | Sun, Hui,Liu, Xiaodong,&Pan, Zaitao.(2017).Direct radiative effects of dust aerosols emitted from the Tibetan Plateau on the East Asian summer monsoon - a regional climate model simulation.ATMOSPHERIC CHEMISTRY AND PHYSICS,17(22),13731-13745. |
MLA | Sun, Hui,et al."Direct radiative effects of dust aerosols emitted from the Tibetan Plateau on the East Asian summer monsoon - a regional climate model simulation".ATMOSPHERIC CHEMISTRY AND PHYSICS 17.22(2017):13731-13745. |
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