气候变化领域集成服务门户(CCPortal): Roles of land-surface properties and terrains on Maritime Continent rainfall and its seasonal evolution

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DOI	10.1007/s00382-019-04951-6
	Roles of land-surface properties and terrains on Maritime Continent rainfall and its seasonal evolution
	Zhang T.; Tam C.-Y.; Jiang X.; Yang S.; Lau N.-C.; Chen J.; Laohalertchai C.
发表日期	2019
ISSN	0930-7575
起始页码	6681
结束页码	6697
卷号	53 期号:11
英文摘要	The Maritime Continent (MC) is characterized by a seasonal evolution of rainfall distinct from other regions, due to its unique land–sea distribution and topography. In this study, the roles of surface properties and terrains in controlling the regional climatological rainfall were investigated, based on general circulation model experiments. Results show that the existence of terrain can increase the MC land (MCL) rainfall mainly through its dynamical lifting effect, but otherwise has only moderate influence on rainfall over the MC ocean (MCO). On the other hand, the impact of MC land–sea distribution on the regional rainfall is more seasonally dependent. When replacing the MC flat-land with ocean, rainfall is significantly increased over both MCL and MCO during boreal summer-to-fall, but not in the winter-to-spring season. Further inspection showed that by eliminating the MC flat-land, there is enhanced atmospheric water vapor and convective instability in the summer-to-fall period, contributing to a dramatic increase in precipitation. On the other hand, changes in convective instability and atmospheric water vapor over the MCL act to counteract each other, leading to an only moderate change in rainfall during boreal winter-to-spring. The model-based results suggest that this seasonally dependent influence of the MC flat-land on regional climate mean rainfall is not determined by its modulation on the diurnal cycle. Our results also suggest a larger sensitivity of model bias in representing land–sea distribution/fraction over the MC region during the dry season (i.e. boreal summer) than in the wet season (i.e. boreal winter). © 2019, Springer-Verlag GmbH Germany, part of Springer Nature.
英文关键词	Maritime Continent; Roles of land–sea distribution and terrains; Seasonally dependent features
语种	英语
scopus关键词	atmospheric convection; general circulation model; land surface; land-sea interaction; rainfall; seasonal variation; terrain; water vapor
来源期刊	Climate Dynamics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/145810
作者单位	Institute of Environment, Energy and Sustainability, The Chinese University of Hong Kong, Hong Kong; Earth System Science Programme, The Chinese University of Hong Kong, Hong Kong; Institute of Plateau Meteorology, China Meteorological Administration, 20 Guanghua Village Street, Qingyang District, Chengdu, Sichuan 610072, China; School of Atmospheric Sciences, Sun Yat-sen University, Guangzhou, Guangdong 510275, China; Guangdong Province Key Laboratory for Climate Change and Natural Disaster Studies, Sun Yat-sen University, Guangzhou, Guangdong 510275, China; Southern Laboratory of Ocean Science and Engineering (Guangdong, Zhuhai), Zhuhai, Guangdong 519000, China; Department of Geography and Resource Management, The Chinese University of Hong Kong, Sha Tin, Hong Kong; Thai Meteorological Department, Bangna, Bangkok, 10260, Thailand
推荐引用方式 GB/T 7714	Zhang T.,Tam C.-Y.,Jiang X.,et al. Roles of land-surface properties and terrains on Maritime Continent rainfall and its seasonal evolution[J],2019,53(11).
APA	Zhang T..,Tam C.-Y..,Jiang X..,Yang S..,Lau N.-C..,...&Laohalertchai C..(2019).Roles of land-surface properties and terrains on Maritime Continent rainfall and its seasonal evolution.Climate Dynamics,53(11).
MLA	Zhang T.,et al."Roles of land-surface properties and terrains on Maritime Continent rainfall and its seasonal evolution".Climate Dynamics 53.11(2019).