气候变化领域集成服务门户(CCPortal): Study of altitudinal lapse rates of delta O-18 in precipitation/river water with seasons on the southeast Tibetan Plateau

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DOI	10.1007/s11434-009-0496-5
	Study of altitudinal lapse rates of delta O-18 in precipitation/river water with seasons on the southeast Tibetan Plateau
	Yang XiaoXin; Xu BaiQing; Yang Wei; Qu DongMei; Lin Ping-Nan
通讯作者	Yang, XX (通讯作者)
发表日期	2009
ISSN	1001-6538
EISSN	1861-9541
起始页码	2742
结束页码	2750
卷号	54 期号:16
英文摘要	Seasonal delta O-18 variation in water on the southeast Tibetan Plateau has been studied, showing the consistent variation pattern of delta O-18 with altitude indicative of relevant atmospheric circulation processes. Study shows a similar variation pattern of fixed-site river water delta O-18 with that of the precipitation delta O-18 in southeast Tibet. delta O-18 in regional rivers in southeast Tibet demonstrates a gradual depletion with increasing altitude, though the rates vary seasonally. The most depleted river O-18 occurs during the monsoon period, with the lowest delta O-18/altitude lapse rate. The river O-18 during the westerly period is also depleted, together with low delta O-18/altitude lapse rate. The pre-monsoon rivers witness the most enriched O-18 with least significant correlation coefficient with the linear regression, whilst the post-monsoon rivers witness the largest delta O-18/altitude lapse rate. Different coherence of seasonal delta O-18 variation with the altitude effect is attributed to different moisture supplies. Though sampling numbers vary with seasons, the delta O-18-H linear correlation coefficients all reach the 0.05 confidence level, thus witnessing the variation features of delta O-18 in seasonal river water due to the influence of atmospheric general circulation and land surface processes revealed from the altitudinal lapse rates.
关键词	SPATIAL-DISTRIBUTION ISOTOPE COMPOSITION O-18 DEUTERIUM
英文关键词	river water; precipitation; southeast Tibetan Plateau; delta O-18; altitude effect; Indian monsoon
语种	英语
WOS研究方向	Science & Technology - Other Topics
WOS类目	Multidisciplinary Sciences
WOS记录号	WOS:000269212800004
来源期刊	CHINESE SCIENCE BULLETIN
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/257665
推荐引用方式 GB/T 7714	Yang XiaoXin,Xu BaiQing,Yang Wei,et al. Study of altitudinal lapse rates of delta O-18 in precipitation/river water with seasons on the southeast Tibetan Plateau[J]. 中国科学院青藏高原研究所,2009,54(16).
APA	Yang XiaoXin,Xu BaiQing,Yang Wei,Qu DongMei,&Lin Ping-Nan.(2009).Study of altitudinal lapse rates of delta O-18 in precipitation/river water with seasons on the southeast Tibetan Plateau.CHINESE SCIENCE BULLETIN,54(16).
MLA	Yang XiaoXin,et al."Study of altitudinal lapse rates of delta O-18 in precipitation/river water with seasons on the southeast Tibetan Plateau".CHINESE SCIENCE BULLETIN 54.16(2009).