位置:成果数据库 > 期刊 > 期刊详情页
Distribution of Borehole Temperature at Four High-altitude Alpine Glaciers in Central Asia
  • ISSN号:1672-6316
  • 期刊名称:Journal of Mountain Science
  • 时间:0
  • 页码:221-227
  • 分类:P343.6[天文地球—水文科学;天文地球—地球物理学] TP274[自动化与计算机技术—控制科学与工程;自动化与计算机技术—检测技术与自动化装置]
  • 作者机构:[1]State Key Laboratory of Cryospheric Sciences, Cold andArid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, China, [2]Graduate University of Chinese Academy of Sciences, Beijing 100049, China
  • 相关基金:This work was partially funded by the National Natural Science Foundation of China (Grant No. 40825017) and the Chinese Academy of Sciences (Grant No. KZCX3-SW-344 and loo Talents Project). We extend our thanks to Mr. ZHU Guocai for calibrating thermometer, and to all the expedition crews for their hard work in the field.
  • 相关项目:极地冰川学
中文摘要:

在四条高高度的高山的冰河的地上凿穿温度的分发被调查。结果证明温度从 −13.4 ° C 到 −1.84 ° C,显示冰河在整个地上凿穿是冷的。否定坡度(即,与增加深度减少的温度)由于冰的移流并且温暖的气候,和向下移动的否定坡度联系到温暖的气候,为移动在韦斯特中国与以前调查的大陆人冰核心地上凿穿温度相比在 Gyabrag 冰河和 Miaoergou 冰河的地上凿穿降低深度的观察最小的温度可能负责。在 10 m 深度的地上凿穿温度在阿尔泰山范围在 Tsabagarav 冰河在中央喜马拉雅山脉在 Gyabrag 冰河从 −8.0 ° C 到 −12.9 ° C。在 10 m 深度的地上凿穿温度比冰河的表面上的计算吝啬的年度空气温度高是 3 ∼4 度并且更高, 10 m 深度温度被潜伏的热的生产主要由于融化水过滤和 refreezing 引起。基础温度在融化的点下面是远的,显示冰河被冻结到基岩。基岩附近的低温度坡度建议基础温度上的地热的流动和冰流动的影响是很弱的。低温度和冰河的冰流动的小速度为在冰核心的化学、同位素的信息的保藏是有益的。

英文摘要:

The distribution of borehole temperature at four high-altitude alpine glaciers was investigated. The result shows that the temperature ranges from -13.4℃ to -1.84℃, indicating the glaciers are cold throughout the boreholes. The negative gradient (i.e., the temperature decreasing with the increasing of depth) due to the advection of ice and climate warming, and the negative gradient moving downwards relates to climate warming, are probably responsible for the observed minimum temperature moving to lower depth in boreholes of the Gyabrag glacier and Miaoergou glacier compared to the previously investigated continental ice core borehole temperature in West China. The borehole temperature at 10m depth ranges from -8.0℃ in the Gyabrag glacier in the central Himalayas to -12.9℃ in the Tsabagarav glacier in the Altai range. The borehole temperature at 10 m depth is 3-4 degrees higher than the calculated mean annual air temperature on the surface of the glaciers and the higher 10 m depth temperature is mainly caused by the production of latent heat due to melt-water percolation and refreezing. The basal temperature is far below the melting point, indicating that the glaciers are frozen to bedrock. The very low temperature gradients near the bedrock suggest that the influence of geothermal flux and ice flow on basal temperature is very weak. The low temperature and small velocity of ice flow of glaciers are beneficial for preservation of the chemical and isotopic information in ice cores.

同期刊论文项目
期刊论文 70
同项目期刊论文
期刊信息
  • 《山地科学学报:英文版》
  • 主管单位:
  • 主办单位:中国科学院山地灾害与环境研究所
  • 主编:
  • 地址:四川成都一环路南二段16号
  • 邮编:610041
  • 邮箱:yudf@imde.ac.cn
  • 电话:028-85252110 85252044
  • 国际标准刊号:ISSN:1672-6316
  • 国内统一刊号:ISSN:51-1668/P
  • 邮发代号:
  • 获奖情况:
  • 国内外数据库收录:
  • 英国农业与生物科学研究中心文摘,荷兰文摘与引文数据库,美国地质文献预评数据库,美国剑桥科学文摘,美国科学引文索引(扩展库)
  • 被引量:84