气候变化领域集成服务门户(CCPortal): Continuous monitoring of the isotopic composition of surface water vapor at Lhasa, southern Tibetan Plateau

CCPortal

DOI	10.1016/j.atmosres.2021.105827
	Continuous monitoring of the isotopic composition of surface water vapor at Lhasa, southern Tibetan Plateau
	Dai D.; Gao J.; Steen-Larsen H.C.; Yao T.; Ma Y.; Zhu M.; Li S.
发表日期	2021
ISSN	0169-8095
卷号	264
英文摘要	The stable isotopes (δ18O and δD) of water vapor are used to characterize continuous variations in large-scale and boundary-layer atmospheric processes. We presented continuous measurements of δ18O in surface water vapor at Lhasa, southern Tibetan Plateau, from October 2018 to September 2019 to investigate how large-scale and local atmospheric processes influence variations in water vapor δ18O at different time scales. The water vapor δ18O measurements reveal different seasonal characteristics and diurnal patterns. At the seasonal scale, δ18O exhibits a W-shape with two maxima in May–June and October as well as two minima in July–August and February. The diurnal variations in the water vapor δ18O and meteorological data throughout the year present distinct occurrences of maxima and minima during different periods. We found that the significant seasonal variability is mainly associated with the transition between the Indian summer monsoon and the westerlies, which transport distinct moisture to the southern Tibetan Plateau. The local temperature, specific humidity and boundary layer height impact the diurnal variations in water vapor δ18O to some extent with remarkable seasonal differences. © 2021
英文关键词	Moisture sources; Southern Tibetan Plateau; Water vapor stable isotopes
来源期刊	Atmospheric Research
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/236583
作者单位	Key Laboratory of Tibetan Environment Changes and Land Surface Processes, Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing, 100101, China; CAS Center for Excellence in Tibetan Plateau Earth Sciences, Beijing, 100101, China; Geophysical Institute, University of Bergen, Bjerkness Centre for Climate Research, Bergen, Norway; University of Chinese Academy of Sciences, Beijing, 100049, China
推荐引用方式 GB/T 7714	Dai D.,Gao J.,Steen-Larsen H.C.,et al. Continuous monitoring of the isotopic composition of surface water vapor at Lhasa, southern Tibetan Plateau[J],2021,264.
APA	Dai D..,Gao J..,Steen-Larsen H.C..,Yao T..,Ma Y..,...&Li S..(2021).Continuous monitoring of the isotopic composition of surface water vapor at Lhasa, southern Tibetan Plateau.Atmospheric Research,264.
MLA	Dai D.,et al."Continuous monitoring of the isotopic composition of surface water vapor at Lhasa, southern Tibetan Plateau".Atmospheric Research 264(2021).