Linkage of liquid conductivity of glacier ice with its alkalinity over the north Qinghai-Xizang (Tibet) Plateau - Implication to the past dust recovery
文献类型：期刊论文
| 作者 | Xiao, CD; Yao, TD; Qin, DH; Seko, K; Pu, JC; Sheng, WK |
| 刊名 | SCIENCE IN CHINA SERIES D-EARTH SCIENCES
 |
| 出版日期 | 2002-04-01 |
| 卷号 | 45期号:4页码:300-310 |
| 关键词 | liquid conductivity (EC) Qinghai-Xizang (Tibet) Plateau Asia dust climatic change |
| ISSN号 | 1006-9313 |
| 通讯作者 | Xiao, CD() |
| 英文摘要 | Liquid conductivity (EC) measurement was conducted for the samples collected from several snow pits and ice cores over the Qinghai-Xizang (Tibet) Plateau, with their time range covering seasonal, decadal and centennial scales. Unlike the previous attention mostly focused on the acidity (W) responding to the solid conductance (ECM) of glacial ice, we introduce the alkalinity (OH-) of snow and ice to show how it responds to EC. Strong linear relationship was established between EC and OH- for these snow pits and ice cores. Positive correlation is also established between EC and major cations (Ca2+,Mg2+, Na+ and K+). Since the cations are known as the proxies for the intensity of mineral dust influx onto glaciers of the northern Qinghai-Xizang Plateau, we believe that EC could be used as an indicator for the history of dust input in deep ice core study. In fact, records in Guliya ice core since the Little Ice Age (LIA) indicate that dust load in glacier may depend on the combination of temperature and humidity. "Cold-dry" combination favors the dust arising, and results in higher EC and OH- values, while "warm-wet" combination prevents dust form and EC and OH- values are lower. In the past century, with the atmospheric warming and precipitation increasing over the northern plateau, which means an atmospheric condition of dust decreasing, both EC and OH- displayed rapid decline. |
| 收录类别 | SCI |
| WOS关键词 | MELTWATERS ; CORES ; AGE ; CAP |
| WOS研究方向 | Geology |
| WOS类目 | Geosciences, Multidisciplinary |
| 语种 | 英语 |
| WOS记录号 | WOS:000175009300002 |
| 出版者 | SCIENCE CHINA PRESS |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2556740 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Xiao, CD |
| 作者单位 | 1.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Lab Ice Core & Cold Reg Environm, Lanzhou 730000, Peoples R China 2.Nagoya Univ, Inst Hydrospher Atmospher Sci, Nagoya, Aichi 46401, Japan |
| 推荐引用方式 GB/T 7714 | Xiao, CD,Yao, TD,Qin, DH,et al. Linkage of liquid conductivity of glacier ice with its alkalinity over the north Qinghai-Xizang (Tibet) Plateau - Implication to the past dust recovery[J]. SCIENCE IN CHINA SERIES D-EARTH SCIENCES,2002,45(4):300-310. |
| APA | Xiao, CD,Yao, TD,Qin, DH,Seko, K,Pu, JC,&Sheng, WK.(2002).Linkage of liquid conductivity of glacier ice with its alkalinity over the north Qinghai-Xizang (Tibet) Plateau - Implication to the past dust recovery.SCIENCE IN CHINA SERIES D-EARTH SCIENCES,45(4),300-310. |
| MLA | Xiao, CD,et al."Linkage of liquid conductivity of glacier ice with its alkalinity over the north Qinghai-Xizang (Tibet) Plateau - Implication to the past dust recovery".SCIENCE IN CHINA SERIES D-EARTH SCIENCES 45.4(2002):300-310. |
入库方式： iSwitch采集
来源：寒区旱区环境与工程研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。