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Comparison of two ice-core chemical records recovered from the Qomolangma (Mount Everest) region, Himalaya

文献类型:期刊论文

作者Hou, SG; Qin, DH; Zhang, DQ; Ren, JW; Kang, SC; Mayewski, PA; Wake, CP
刊名ANNALS OF GLACIOLOGY, VOL 35
出版日期2002
卷号35页码:266-272
ISSN号0260-3055
通讯作者Hou, SG()
英文摘要A 40.9 m ice core was recovered from Far East Rongbuk Glacier (FER), Qomolangma (Mount Everest), Himalaya, and an 80.4 m core from neighboring East Rongbuk Glacier (ER). Both are dated by seasonal variations of delta(18)O and major-ionic profiles, together with references of beta-activity peaks. In this paper we compare the chemical records of these two cores to show post-depositional modification processes. The smoothed delta(18)O profiles of the two cores show a similar trend. However, the mean delta(18)O value of the FER core for the period 1954-96 is 3.12parts per thousand less than that of the corresponding part of the ER core, and the major-ionic profiles of the two cores differ considerably. We suggest that melting-away of the snow layer deposited during the pre-monsoon season may account for lower delta(18)O values of the FER than of the ER core, and higher terrestrial ion concentrations in the FER core for the period 1957-63 may contribute to changes by chemical reactions in the presence of snowmelting. The significantly decreased NH4+ and, to a lesser degree, SO42- concentrations in the FER core could be caused by the ion elution process that moved most chemicals away with runoff.
收录类别ISTP ; SCI
WOS关键词CLIMATOLOGICAL SIGNIFICANCE ; SNOW ; DELTA-O-18 ; CHEMISTRY ; MELTWATER ; AREAS
WOS研究方向Geology
WOS类目Geosciences, Multidisciplinary
语种英语
WOS记录号WOS:000182023600044
出版者INT GLACIOLOGICAL SOC
URI标识http://www.irgrid.ac.cn/handle/1471x/2556735
专题寒区旱区环境与工程研究所
通讯作者Hou, SG
作者单位1.Chinese Acad Sci, Cold & Arid Regions Environm & Engn Res Inst, Lab Ice Core & Cold Regions, Lanzhou 730000, Peoples R China
2.Univ Maine, Inst Quaternary & Climate Studies, Orono, ME 04469 USA
3.Univ New Hampshire, Inst Study Earth Oceans & Space, Climate Change Res Ctr, Durham, NH 03824 USA
推荐引用方式
GB/T 7714
Hou, SG,Qin, DH,Zhang, DQ,et al. Comparison of two ice-core chemical records recovered from the Qomolangma (Mount Everest) region, Himalaya[J]. ANNALS OF GLACIOLOGY, VOL 35,2002,35:266-272.
APA Hou, SG.,Qin, DH.,Zhang, DQ.,Ren, JW.,Kang, SC.,...&Wake, CP.(2002).Comparison of two ice-core chemical records recovered from the Qomolangma (Mount Everest) region, Himalaya.ANNALS OF GLACIOLOGY, VOL 35,35,266-272.
MLA Hou, SG,et al."Comparison of two ice-core chemical records recovered from the Qomolangma (Mount Everest) region, Himalaya".ANNALS OF GLACIOLOGY, VOL 35 35(2002):266-272.

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来源:寒区旱区环境与工程研究所

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