| 利用GPS形变资料确定地壳形变的应变特征 |
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| 引用本文： | 党亚民,晁定波,许才军,赵少荣.利用GPS形变资料确定地壳形变的应变特征[J].测绘科学,2002(3). |
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| 作者姓名： | 党亚民 晁定波 许才军 赵少荣 |
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| 作者单位： | 中国测绘科学研究院!北京100039(党亚民)，武汉大学!武汉430079(晁定波，许才军，赵少荣) |
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| 基金项目： | 国家杰出青年科学基金资助项目 (编号 :4972 5 411) |
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| 摘 要： | 基于弹性力学理论并结合 GPS测量的特点提出了一种利用 GPS形变观测资料确定地壳水平应变场的方法 ,并介绍了在获取应变参数基础上求定剪应变和面膨胀的基本公式。结合华北地区实际的 GPS形变观测资料确定了华北地区的应变场特征 ,获得了较为满意的结果
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| 关 键 词： | GPS 形变 应变场 剪应变 面膨胀 |
The Determination of Strain Accumulation Rates Using GPS Data |
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| DANG Ya min,CHAO Ding bo,XU Cat jun,ZHAO Shao rong.The Determination of Strain Accumulation Rates Using GPS Data[J].Science of Surveying and Mapping,2002(3). |
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| Authors: | DANG Ya min CHAO Ding bo XU Cat jun ZHAO Shao rong |
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| Abstract: | The formulae of the determination of strain accumulation rates using GPS data were derived based on the elastic theory. 41 sites of GPS filed campaign data were employed for determination of maximum principal strain rate,azimuth of direction of maximum principal strain rate, rate of dilatation, the highest shear rate (or total shear) and the rotation in the north China region. The solution acquired using these GPS data are quite consistent with the geological featureover this region. |
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| Keywords: | GPS deformation strain field shear rate dilatation |
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