摘要
分析了2005~2010年的6期GPS观测数据,获取了冰川表面监测标杆的年均运动速度。结果表明,两条冰川物质平衡当前均处于负平衡状态。结合该地区1936年测量的冰面高程数据,对73a以来冰川总体物质平衡情况进行了比较分析,认为两条冰川当前处于加速消融的状态。
We introduce GPS tracking station and the field GPS work in summer from 2005 to 2010,and give the yearly horizontal and vertical velocities on the surface of the two glaciers,which indicates that the horizontal velocity is from 5.277~8.256 m·a-1 on glacier Pedersenbreen,and from 0.360~3.986 m/a on glacier Austre Lovénbreen.The velocity of surface altitude change is from-3.4~-71.8 cm/a on glacier Pedersenbreen and from +9.6~-115.8 cm/a on glacier Austre Lovénbreen.It shows that the mass balance in two glaciers is negative,and the two glaciers are increasingly melting.
出处
《武汉大学学报(信息科学版)》
EI
CSCD
北大核心
2012年第11期1337-1340,共4页
Geomatics and Information Science of Wuhan University
基金
国家自然科学基金资助项目(41076126
40876098
41174029
41176172)
中国极地科学战略研究基金资助项目(20080203
20100103)
关键词
北极黄河站
GPS
冰川运动
高程变化
Chinese Arctic Yellow River Station
GPS
glacier movement
altitude change