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Short-term variability in the dates of the Indian monsoon onset and retreat on the southern and northern slopes of the central Himalayas as determined by precipitation stable isotopes
Yu, WS (Yu, Wusheng)1,2; Yao, TD (Yao, Tandong)1,2; Tian, LD (Tian, Lide)1,2; Ma, YM (Ma, Yaoming)1,2; Wen, R (Wen, Rong)1; Devkota, LP (Devkota, Lochan P.)3; Wang, WC (Wang, Weicai)1; Qu, DM (Qu, Dongmei)1; Chhetri, TB (Chhetri, Tek B.)3; Yu, WS
Source PublicationCLIMATE DYNAMICS
2016
Volume47Issue:1-2Pages:159-172
DOI10.1007/s00382-015-2829-1
AbstractThis project launched the first study to compare the stable isotopes (delta O-18 and delta D) in daily precipitation at Kathmandu (located on the southern slope of the central Himalayas) and Tingri (located on the northern slope). The results show that low delta O-18 and delta D values of summer precipitation at the two stations were closely related to intense convection of the Indian monsoon. However, summer delta O-18 and delta D values at Tingri were lower than those at Kathmandu, a result of the lift effect of the Himalayas, coupled with convection disturbances and lower temperatures at Tingri. In winter, the relatively high delta O-18 and delta D values at the two stations appears to have resulted from the influence of the westerlies. Compared with those during the summer, the subsidence of the westerlies and northerly winds resulted in relatively high delta O-18 and delta D values of the winter precipitation at Tingri. Winter delta O-18 and delta D values at Kathmandu far exceeded those at Tingri, due to more intense advection of the southern branch of the westerlies, and higher temperatures and relative humidity at Kathmandu. The detailed differences in stable isotopes between the two stations follow short-term variability in the onset date of the Indian monsoon and its retreat across the central Himalayas. During the sampling period, the Indian monsoon onset at Tingri occurred approximately 1 week later than that at Kathmandu. However, the retreat at Tingri began roughly 3 days earlier. Clearly, the duration of the Indian monsoon effects last longer at Kathmandu than that at Tingri. Our findings also indicate that the India monsoon travels slowly northward across the central Himalayas due to the blocking of the Himalayas, but retreats quickly.
Subject Area自然地理学
WOS IDWOS:000381227100011
Language英语
Indexed BySCI
KeywordAsian Summer Monsoon Southeastern Tibetan Plateau Ice Cores Southwest Monsoon Atmospheric Circulation Interannual Variability Quantitative-analysis Hydrogen Isotopes Deuterium Excess Moisture Sources
Cooperation Status国际
Department环境
Citation statistics
Cited Times:17[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itpcas.ac.cn/handle/131C11/7661
Collection图书馆
Corresponding AuthorYu, WS
Affiliation1.Chinese Acad Sci ITP CAS, Inst Tibetan Plateau Res, Key Lab Tibetan Environm Changes & Land Surface P, Beijing, Peoples R China
2.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing, Peoples R China
3.Tribhuvan Univ, Cent Dept Hydrol & Meteorol, Kathmandu, Nepal
Recommended Citation
GB/T 7714
Yu, WS ,Yao, TD ,Tian, LD ,et al. Short-term variability in the dates of the Indian monsoon onset and retreat on the southern and northern slopes of the central Himalayas as determined by precipitation stable isotopes[J]. CLIMATE DYNAMICS,2016,47(1-2):159-172.
APA Yu, WS .,Yao, TD .,Tian, LD .,Ma, YM .,Wen, R .,...&Yu, WS.(2016).Short-term variability in the dates of the Indian monsoon onset and retreat on the southern and northern slopes of the central Himalayas as determined by precipitation stable isotopes.CLIMATE DYNAMICS,47(1-2),159-172.
MLA Yu, WS ,et al."Short-term variability in the dates of the Indian monsoon onset and retreat on the southern and northern slopes of the central Himalayas as determined by precipitation stable isotopes".CLIMATE DYNAMICS 47.1-2(2016):159-172.
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