中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 成都山地灾害与环境研究所
  3. 中国科学院水利部成都山地灾害与环境研究所
  4. 山地表生过程与生态调控重点实验室
Distribution and interannual variability of supraglacial lakes on debris-covered glaciers in the Khan Tengri-Tumor Mountains, Central Asia

文献类型：期刊论文

作者Qiao, Liu1; Mayer, Christoph2; Liu, Shiyin3
刊名ENVIRONMENTAL RESEARCH LETTERS
出版日期2015
卷号10期号:1页码:1-10
关键词remote sensing supraglacial lake Glaciology debris-covered glacier Khan Tengri-Tumor Tianshan
ISSN号1748-9326
通讯作者Liu Qiao
英文摘要Supraglacial lakes are widely formed on debris-covered glaciers in the Khan Tengri-Tumor Mountains (KTTM), Tianshan, Central Asia. Study of their distribution characters based on regional-wide remote sensing investigations is still lacking, but it can promote our understanding about the influence of supraglacial lakes on the surface melting, hydrology and dynamics of debris-covered glaciers in this region. This study presents results of the supraglacial lake inventory in the KTTM region, based on multi-year Landsat images. We focus on the glacio-geomorphological characters of the supraglacial lakes and their late summer conditions, since all suitable Landsat images were acquired between August and September during 1990-2011. With a minimum threshold extent of 3600 m(2) for conservative mapping results, we totally mapped 775 supraglacial lakes and 38 marginal glacial lakes on eight huge debris-covered glaciers. Supraglacial lakes are concentrated on the Tumor Glacier and the South Inylchek Glacier, two biggest glaciers in this region. Although most supraglacial lakes are short-lived, a number of lakes can be repeatedly identified between different Landsat images. Detailed investigation of these 'perennial' lakes on the Tumor Glacier indicates that their filling frequency and area contributions have increased since 2005. Analysis of the area-elevation distributions for all mapped supraglacial lakes shows that they predominantly occur close to the altitude of 3250 ma. s. l., as high as the lowest reach of clean ice where surface debris begins to appear, and can further develop upglacier to a limit of about 3950 ma. s. l.. Total and mean area of supraglacial lakes in the KTTM region during the late summer seasons show great variability between years. Correlation analysis between the annual lake area and the observed nearby meteorological conditions suggests that warmer springs seem related to the draining of some supraglacial lakes during the following seasons, due to the evolution of glacial drainage from unconnected to connected systems by enhanced ablation during the springs.
WOS标题词Science & Technology ; Life Sciences & Biomedicine ; Physical Sciences
类目[WOS]Environmental Sciences ; Meteorology & Atmospheric Sciences
研究领域[WOS]Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
关键词[WOS]EVEREST REGION ; INYLCHEK GLACIER ; OUTBURST FLOOD ; NEW-ZEALAND ; TIEN-SHAN ; HIMALAYAS ; MERZBACHER ; INVENTORY ; DRAINAGE ; ABLATION
收录类别SCI
原文出处http://iopscience.iop.org/1748-9326/10/1/014014
语种英语
WOS记录号WOS:000348501800015
源URL[http://ir.imde.ac.cn/handle/131551/9214]  
专题成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室
作者单位1.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Surface Proc & Ecol Regulat, Chengdu, Peoples R China
2.Bavarian Acad Sci & Humanities, Commiss Geodesy & Glaciol, Munich, Germany
3.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Stake Key Lab Cryospher Sci, Lanzhou, Peoples R China
推荐引用方式
GB/T 7714		 Qiao, Liu,Mayer, Christoph,Liu, Shiyin. Distribution and interannual variability of supraglacial lakes on debris-covered glaciers in the Khan Tengri-Tumor Mountains, Central Asia[J]. ENVIRONMENTAL RESEARCH LETTERS,2015,10(1):1-10.
APA Qiao, Liu,Mayer, Christoph,&Liu, Shiyin.(2015).Distribution and interannual variability of supraglacial lakes on debris-covered glaciers in the Khan Tengri-Tumor Mountains, Central Asia.ENVIRONMENTAL RESEARCH LETTERS,10(1),1-10.
MLA Qiao, Liu,et al."Distribution and interannual variability of supraglacial lakes on debris-covered glaciers in the Khan Tengri-Tumor Mountains, Central Asia".ENVIRONMENTAL RESEARCH LETTERS 10.1(2015):1-10.

入库方式： OAI收割

来源：成都山地灾害与环境研究所

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。