气候变化领域集成服务门户(CCPortal): Quantitative identification of moisture sources over the Tibetan Plateau and the relationship between thermal forcing and moisture transport

CCPortal

DOI	10.1007/s00382-018-4130-6
	Quantitative identification of moisture sources over the Tibetan Plateau and the relationship between thermal forcing and moisture transport
	Pan C.; Zhu B.; Gao J.; Kang H.; Zhu T.
发表日期	2019
ISSN	0930-7575
起始页码	181
结束页码	196
卷号	52 期号:2020-01-02
英文摘要	Despite the importance of the Tibetan Plateau (TP) to the surrounding water cycle, the moisture sources of the TP remain uncertain. In this study, the moisture sources of the TP are quantitatively identified based on a 33-year simulation with a horizontal resolution of 1.9° × 2.5° using the Community Atmosphere Model version 5.1 (CAM5.1), in which atmospheric water tracer technology is incorporated. Results demonstrate that the major moisture sources differ over the southern TP (STP) and northern TP (NTP). During the winter, Africa, the TP, and India are the dominant source regions, contributing nearly half of the water vapour over the STP. During the summer, the tropical Indian Ocean (TIO) supplies 28.5 ± 3.6% of the water vapour over the STP and becomes the dominant source region. The dominant moisture source regions of the water vapour over the NTP are Africa (19.0 ± 2.8%) during the winter and the TP (25.8 ± 2.4%) during the summer. The overall relative contribution of each source region to the precipitation is similar to the contribution to the water vapour over the TP. Like most models, CAM5.1 generally overestimates the precipitation over the TP, yielding uncertainty in the absolute contributions to the precipitation. Composite analyses exhibit significant variations in the TIO-supplied moisture transport and precipitation over the STP during the summer alongside anomalous TP heating. This relationship between moisture transport from the TIO and the TP heating primarily involves the dynamic change in the TIO-supplied moisture flux, which further controls the variation in the TIO-contributed precipitation over the STP. © 2018, Springer-Verlag GmbH Germany, part of Springer Nature.
英文关键词	Heat source; Moisture source apportionment; Moisture transport; Tibetan Plateau
语种	英语
scopus关键词	atmospheric modeling; heat source; moisture transfer; precipitation (climatology); quantitative analysis; source apportionment; summer; water vapor; winter; Africa; China; India; Indian Ocean; Indian Ocean (Tropical); Qinghai-Xizang Plateau
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/146641
作者单位	Key Laboratory for Aerosol-Cloud-Precipitation of China Meteorological Administration, Nanjing University of Information Science and Technology, Nanjing, China; Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Nanjing University of Information Science and Technology, Nanjing, China; Key Laboratory of Meteorological Disaster, Ministry of Education (KLME), Nanjing University of Information Science and Technology, Nanjing, China; Joint International Research Laboratory of Climate and Environment Change (ILCEC), Nanjing University of Information Science and Technology, Nanjing, China; CIRA, Colorado State University, Fort Collins, CO, United States; NOAA/NESDIS/STAR/JCSDA, College Park, MD, United States
推荐引用方式 GB/T 7714	Pan C.,Zhu B.,Gao J.,et al. Quantitative identification of moisture sources over the Tibetan Plateau and the relationship between thermal forcing and moisture transport[J],2019,52(2020-01-02).
APA	Pan C.,Zhu B.,Gao J.,Kang H.,&Zhu T..(2019).Quantitative identification of moisture sources over the Tibetan Plateau and the relationship between thermal forcing and moisture transport.Climate Dynamics,52(2020-01-02).
MLA	Pan C.,et al."Quantitative identification of moisture sources over the Tibetan Plateau and the relationship between thermal forcing and moisture transport".Climate Dynamics 52.2020-01-02(2019).