干旱区研究 ›› 2018, Vol. 35 ›› Issue (2): 325-333.doi: 10.13866/j.azr.2018.02.09

• 水土资源 • 上一篇    下一篇

2000—2010年祁连山冰川冰储量变化

高永鹏, 姚晓军, 安丽娜, 李晓锋, 宫鹏, 祁苗苗   

  1. 西北师范大学 地理与环境科学学院,甘肃 兰州 730070
  • 收稿日期:2017-07-04 修回日期:2017-09-27 出版日期:2018-03-15 发布日期:2025-11-17
  • 通讯作者: 姚晓军. E-mail: yaoxj_nwnu@163.com
  • 作者简介:高永鹏(1990-), 男,硕士, 主要从事3S技术与冰冻圈变化研究. E-mail: Gaoyongpeng_geogis@163.com
  • 基金资助:
    国家自然科学基金项目(41261016, 41561016); 中国科学院冰冻圈科学国家重点实验室开放基金项目(SKLCS-OP-2016-10); 西北师范大学青年教师科研能力提升计划项目(NWNU-LKQN-14-4)

Change of Ice Volume in the Qilian Mountains During the Period from 2000 to 2010

GAO Yong-peng, YAO Xiao-jun, AN Li-na, LI Xiao-feng, GONG Peng, QI Miao-miao   

  1. College of Geography and Environment Sciences,Northwest Normal University,Lanzhou 730070,China
  • Received:2017-07-04 Revised:2017-09-27 Published:2018-03-15 Online:2025-11-17

摘要: 监测区域尺度冰川变化,特别是冰川物质平衡变化,对系统认识冰川及水资源变化具有重要价值。基于校正后的SRTM数据与ASTER立体像对数据,利用大地测量法,对2000—2010年祁连山地区冰川冰储量变化进行应用研究,结果表明:① 多源遥感DEM数据经过空间匹配误差和空间分辨率相关误差校正,整体误差较小,适合对大空间尺度的冰川体积变化和物质平衡进行估算研究。② 2000—2010年祁连山冰川厚度平均减薄(5.68±2.76)m,平均冰川物质平衡为(-0.48±0.23)m w.e.·a-1,冰川储量变化(-1.59±0.72)Gt。③ 疏勒河流域(5Y44)是祁连山地区冰川平均物质平衡和冰储量变化最为明显的区域,平均物质平衡为(-0.80±0.27)m w.e.·a-1,冰川厚度平均减薄(9.42±3.21)m,冰川储量亏损(-4.08±1.39)Gt。而冰川物质平衡变化最小的地区为黑河流域(5Y42),冰川平均物质平衡为(-0.05±0.21)m w.e.·a-1,冰川储量亏损最少地区为大通河流域(5J42),冰川储量变化为(-0.12±0.08)Gt。④ 祁连山地区冰川储量变化呈现自西向东增加的趋势,而物质平衡呈现自西向东减少的趋势。气温升高依然是冰川变化的主要因素。

关键词: 冰川, 物质平衡, 冰储量, 祁连山

Abstract: It is of great value for systematically understanding the change of glaciers and water resources to monitor the glacier change on regional scale,especially the change of glacier mass balance.Based on the corrected SRTM and ASTER stereoscopic data,in this study the geodetic method was used to research the change of ice volume in the Qilian Mountains during the period from 2000 to 2010.The results are as follows:① The spatial matching error and spatial resolution relative error of the multi-source remote sensing DEM data were corrected,and the results revealed that the overall errors were small suitable for estimating and studying the glacier volume change and glacier mass balance on large spatial scale; ② The average decrease of glacier thickness in the Qilian Mountains during the period from 2000 to 2010 was(5.68±2.76) m,the average glacier mass balance was(-0.48±0.23) m w.e·a-1,and the change of glacier volume was(-1.59±0.72) Gt; ③ The changes of average glacier mass balance and glacier volume in the Shule River Basin (5Y44) were the most obvious,where the average glacier mass balance was(-0.80±0.27) m w.e·a-1,the average reduction of glacier thickness was(9.42±3.21) m,and the change of glacier volume was(-4.08±1.39) Gt.The change of glacier mass balance in the Heihe River Basin (5Y42) was the slightest,where the average glacier mass balance was(-0.05±0.21) m w.e·a-1,and the glacier volume loss in the Datong River Basin (5J42) was the least with an ice volume change of(-0.12±0.08) Gt; ④ The change of glacier volume in the Qilian Mountains was in an increase trend from the west to the east,however the glacier mass balance was in a decrease trend from the west to the east.Temperature increase was still a major factor resulting in glacial change.

Key words: glacier, mass balance, ice volume, Qilian Mountains