| 南极内陆考察沿线GPS高精度定位点测量结果分析 |
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| 引用本文： | 王清华,鄂栋臣,陈春明,黄声享.南极内陆考察沿线GPS高精度定位点测量结果分析[J].极地研究,2001,13(2):129-136. |
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| 作者姓名： | 王清华 鄂栋臣 陈春明 黄声享 |
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| 作者单位： | 武汉大学测绘科学与技术学院南极测绘研究中心, |
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| 基金项目： | 国家测绘局科技发展基金资助项目 (95 0 4 0 3 )，国家科技攻关项目子课题“中山站 -Dome A区域冰盖表面测绘与制图”资助 (9892 70 1 0 5 0 5 ) |
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| 摘 要： | 中山站至 Dome- A考察是中国承担的“国际横穿南极科学考察”( ITASE)计划的一部分。考察沿线布设有 GPS高精度定位点 ,通过两期观测数据的计算可知 ,考察沿线的冰川整体上以8- 2 4 m/a的速度向西北方向 (兰伯特冰川盆地方向 )流动 ,而且 ,越接近冰盖边缘 ,运动速度越快 ,最快达到 1 0 0 m/a。同时 ,由于冰川的流动 ,引起了 GPS点垂直方向 0 .2 - 1 m的沉降量
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| 关 键 词： | 南极内陆冰盖 兰伯特冰川 Dome-A GPS 冰川运动 |
| 修稿时间： | 2000年11月1日 |
AN ANALYSIS ON THE RESULTS FOR THE GPS POINTS ALONG THE CHINESE ANTARCTIC INLAND TRAVERSE ROUTE |
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| Wang Qinghua,E Dongchen,Chen Chunming and Huang Shengxiang.AN ANALYSIS ON THE RESULTS FOR THE GPS POINTS ALONG THE CHINESE ANTARCTIC INLAND TRAVERSE ROUTE[J].Chinese Journal of Polar Research,2001,13(2):129-136. |
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| Authors: | Wang Qinghua E Dongchen Chen Chunming and Huang Shengxiang |
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| Abstract: | The route from Zhongshan Station to Dome A is one of the most important expedition routes of the ITASE project. China carried out 3 inland traverses during the 1996/1997, 1997/1998, 1998/1999 Antarctic summer seasons respectively. Some GPS points were set up,surveyed and resurveyed along the traverse route. The results for the GPS data processing indicate that the ice flows with an 8-24m/a velocity to the northwest, that is to say to the foot of the Lambert Glacier. Moreover, the nearer to the edge of the ice sheet, the faster the flow is. The maximum flow velocity is about 100m/a. Finally, due to the ice flow, a 0.2-1m/a sedimentation rate for the GPS points is achieved. |
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| Keywords: | Antarctic inland ice sheet traverse Lambert Glacier Dome A GPS ice flow |
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