RESEARCH AND APPLICATION OF REGIONAL NO-NET-ROTATION REFERENCE FRAME
区域无整体旋转基准的研究与应用

A new concept of regional No-Net-Rotation(NNR)reference frame for researching crustal movement is proposed.The GPS data observed in Chinese mainland and the surrounding areas is processed by use of this reference frame and a new crustal movement velocity field is obtained.The new velocity field describes very well the different kinds of crustal movements,and topographic and geomorphic phenomena in Chinese mainland.The research indicates there is a large left-lateral movement trend in the eastern China,which covers nearly a half of the area of Chinese mainland and affects the crustal movement in the entire eastern China and its adjacent areas.It is considered that the present-day coastline of China seas is just resulted from such a left-lateral movement,and S-type coastline will be more curved in the future.