气候变化领域集成服务门户(CCPortal): Evidence for recent climate change from ice cores in the central Himalaya

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DOI	10.3189/172756400781819789
	Evidence for recent climate change from ice cores in the central Himalaya
	Qin, DH; Mayewski, PA; Kang, SC; Ren, JW; Hou, SG; Yao, TD; Yang, QZ; Jin, ZF; Mi, DS
发表日期	2000
ISSN	0260-3055
起始页码	153
结束页码	158
卷号	31
英文摘要	Comparison of the terminus locations of Rongbuk Glacier, Mount Everest: measured in 1966 and 1997 shows that in the past 30 years the glacier has retreated 170-270 m; equivalent to a retreat speed of 5.5-8.7 m a(-1). During summer 1997, a 15 m firn core was recovered from Dasuopu glacier (28 degrees 23' N, 85 degrees 44' E; 7000 m a.s.l.) on the northwest margin of Xixabangma Feng, Xizang (Tibet). The seasonal variations of delta O-18 values in the core indicate that monsoon signals are clearly recorded in the glacier. delta O-18 values are controlled by the amount effect in the monsoon season; more negative delta O-18 is representative of the monsoon season in snow layers. Analysis of the relationship between ice-core delta O-18, sampled from 6500 m a.s.l. on the north side of Mount Everest, and instrumental series representing regional-scale precipitation, atmospheric circulation and temperature suggests a change in the relative influence of these parameters on delta O-18 since the 1940s. The results of the comparison add to and lengthen the sparse array of instrument data available for the Tibetan (Qinghai-Xizang) Plateau and demonstrate a recent decline in moisture flux for at least the southern part of the Plateau. Glacier retreat, associated with a recent increase in temperature in the region, is coincident with this period of decreased moisture flux.
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
来源期刊	ANNALS OF GLACIOLOGY, VOL 31, 2000
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/158761
作者单位	Qin, DH (corresponding author), Chinese Acad Sci, Lanzhou Inst Glaciol & Geocryol, Lab Ice Core & Cold Reg Environm, Lanzhou 730000, Gansu, Peoples R China.
推荐引用方式 GB/T 7714	Qin, DH,Mayewski, PA,Kang, SC,et al. Evidence for recent climate change from ice cores in the central Himalaya[J],2000,31.
APA	Qin, DH.,Mayewski, PA.,Kang, SC.,Ren, JW.,Hou, SG.,...&Mi, DS.(2000).Evidence for recent climate change from ice cores in the central Himalaya.ANNALS OF GLACIOLOGY, VOL 31, 2000,31.
MLA	Qin, DH,et al."Evidence for recent climate change from ice cores in the central Himalaya".ANNALS OF GLACIOLOGY, VOL 31, 2000 31(2000).