气候变化领域集成服务门户(CCPortal): Monsoon and dust signals recorded in Dasuopu glacier, Tibetan Plateau

CCPortal

DOI	10.3189/172756500781832864
	Monsoon and dust signals recorded in Dasuopu glacier, Tibetan Plateau
	Kang, SC; Wake, CP; Qin, DH; Mayewski, PA; Yao, TD
发表日期	2000
ISSN	0022-1430
起始页码	222
结束页码	226
卷号	46 期号:153
英文摘要	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 in the central Himalaya. Oxygen isotope values and concentrations of Ca2+, Mg2+, NH4+, SO42- and NO3- were measured over the 10 years of snow accumulation captured in the firn core. The seasonal variations of delta O-18 values and major-ion concentrations in the Dasuopu core indicate that summer monsoon and dust signals are clearly recorded in Dasuopu glacier. Annual variations in delta O-18 values are controlled by the amount effect, with more negative (i.e. lighter) delta O-18 values representing summer monsoon precipitation characteristic of tropical regions. Higher concentrations of Ca2+, Mg2+ and SO42- reflect the influx of mineral aerosols from the vast arid and semi-arid desert regions to the north and west during the spring dust-storm period. High spring concentrations of NH4+ and NO3- appear to reflect changes in regional biogenic-source strength.
WOS研究方向	Physical Geography ; Geology
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
来源期刊	JOURNAL OF GLACIOLOGY
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/158764
作者单位	Kang, SC (corresponding author), Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Lab Ice Core & Cold Reg Environm, Lanzhou 730000, Gansu, Peoples R China.
推荐引用方式 GB/T 7714	Kang, SC,Wake, CP,Qin, DH,et al. Monsoon and dust signals recorded in Dasuopu glacier, Tibetan Plateau[J],2000,46(153).
APA	Kang, SC,Wake, CP,Qin, DH,Mayewski, PA,&Yao, TD.(2000).Monsoon and dust signals recorded in Dasuopu glacier, Tibetan Plateau.JOURNAL OF GLACIOLOGY,46(153).
MLA	Kang, SC,et al."Monsoon and dust signals recorded in Dasuopu glacier, Tibetan Plateau".JOURNAL OF GLACIOLOGY 46.153(2000).