气候变化领域集成服务门户(CCPortal): Response of the asian summer monsoon precipitation to global warming in a high-resolution global nonhydrostatic model

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DOI	10.1175/JCLI-D-19-0824.1
	Response of the asian summer monsoon precipitation to global warming in a high-resolution global nonhydrostatic model
	Takahashi H.G.; Kamizawa N.; Nasuno T.; Yamada Y.; Kodama C.; Sugimoto S.; Satoh M.
发表日期	2020
ISSN	0894-8755
起始页码	8147
结束页码	8164
卷号	33 期号:18
英文摘要	This study examined the responses of Asian monsoon precipitation to global warming on the regional scale, focusing on monsoon westerlies and monsoon trough. This is because the Asian monsoon precipitation is closely associated with tropical disturbances. To reproduce convective precipitation and tropical disturbances, this study used outputs of a high-resolution climate simulation. Two sets of approximately 30-yr simulations under present-day (control) and warmer climate conditions (global warming) were conducted by the 14-km Nonhydrostatic Icosahedral Atmospheric Model (NICAM) with explicitly calculated convection. For understanding the spatial pattern of future precipitation changes, a further set of a 5-yr simulation [sea surface temperature (SST) 1 4 K] was also conducted. Overall, the Asian summer monsoon was well simulated by the model. Precipitation increased as a result of global warming along the monsoon trough, which was zonally elongated across northern India, the Indochina Peninsula, and the western North Pacific Ocean. This increased precipitation was likely due to an increase in precipitable water. The spatial pattern of the increased precipitation was associated with enhanced cyclonic circulations over a large area along the monsoon trough, although it was difficult to determine whether the large-scale monsoon westerly was enhanced. This enhancement can be explained by future changes in tropical disturbance activity, including weak tropical cyclones. However, over part of South Asia, circulation changes may not contribute to the increased precipitation, suggesting regional characteristics. The regional increase in precipitation along the monsoon trough was mostly explained by the uniform increase in SST, whereas SST spatial patterns are important over some regions. Ó 2020 American Meteorological Society
英文关键词	Climate models; Global warming; Oceanography; Storms; Surface waters; Tropics; American meteorological societies; Asian summer monsoons; Convective precipitation; Nonhydrostatic model; Regional characteristics; Sea surface temperature (SST); Tropical disturbances; Western North Pacific; Atmospheric thermodynamics; atmospheric modeling; global warming; monsoon; precipitation (climatology); summer; westerly; India; Indochina; Pacific Ocean; Pacific Ocean (North)
语种	英语
来源期刊	Journal of Climate
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/171114
作者单位	Department of Geography, Tokyo Metropolitan University, Tokyo, Japan; Japan Agency for Marine-Earth Science and Technology, Yokohama, Japan; Atmosphere and Ocean Research Institute, University of Tokyo, Kashiwa, Japan Agency for Marine-Earth Science and Technology, Yokohama, Japan; Atmosphere and Ocean Research Institute, University of Tokyo, Kashiwa, Japan
推荐引用方式 GB/T 7714	Takahashi H.G.,Kamizawa N.,Nasuno T.,et al. Response of the asian summer monsoon precipitation to global warming in a high-resolution global nonhydrostatic model[J],2020,33(18).
APA	Takahashi H.G..,Kamizawa N..,Nasuno T..,Yamada Y..,Kodama C..,...&Satoh M..(2020).Response of the asian summer monsoon precipitation to global warming in a high-resolution global nonhydrostatic model.Journal of Climate,33(18).
MLA	Takahashi H.G.,et al."Response of the asian summer monsoon precipitation to global warming in a high-resolution global nonhydrostatic model".Journal of Climate 33.18(2020).