长江三峡工程地壳形变监测网络

长江三峡工程地壳形变监测网络，采用了当今高精度GPS、INSAR空间大地测量技术，并与精密水准测量，精密重力测量，精密激光测距和峒体连续形变监测等技术相结合，构成一个空间上点、线、面结合，时间上长、中、短兼顾的高精度，高时空分辨率的地壳形变监测网络。该网络既可获取三峡库区特别是库首区区域形变场和区域应变场的动态变化，监测库区主要断层活动，为水库诱发地震预测及研究服务，又可用于气象、滑坡地质灾害监测等，该监测网络于1997年底开始建设，2001年6月建成，到目前为止，已获得大量宝贵的观测资料，必将产生显著的经济效益和社会效益。

CRUSTAL DEFORMATION MONITORING NETWORK FOR THREE GORGES PROJECT ON YANGTZE RIVER

Since crustal deformation monitoring network for Three Gorges Project on Yangtze River has been built, high precision geodesy technology, such as GPS, INSAR, leveling, gravimetry, range found with laser, continuous deformation monitoring in cavity and etc, have been used as well. The crustal deformation monitoring network with high precision and high resolving power is integrated by dot, line and plane in space domain and long, short and impending in time domain. This network can detect the information of dynamic strain change and stress change as well as the main faultage action, in the area, particularly in the head of the Three Gorges reservoir. This network can help the prediction and research of the earthquake which is induced by the reservoir and can also be used in the area of weather service, earth slide monitoring and other geologic disaster. This monitoring network was begun to be built at the end of 1997 and finished in June, 2001. Heretofore, we have detected a lot of valuable observation data from this network that surely can bring us enormous benefit in the economic and social field.