GLOBAL PLATE MOTION PARAMETERS FROM VLBI AND SLR DATA
Sun Fuping (Zhengzhou Institute of Surveying and Mapping,450052) Zhao Ming (Shanghai Observatory, Chinese Academy of Sciences, 200030)
In this paper, we derived a plate motion model based on space geodesy, called SGPMM1, from integrated VLBI and SLR data. Comparison of SGPMM1 with the geological plate model NUVEL-1 indicates that the plate motions from space geodetic observations are generally consistent with those from geological obsevations. After the polarity time scale revision and the effect of regional crustal movements such as post glacial rebound being considered, the space geodetic relative motion rates among the North American, Australia and Eurasian plates agree well with the geological predictions, but the space geodetic motion rates of the Pacific plate relative to the North American, Australia and Eurasian plates show slightly faster than the geological predictions. The plate motion euler vectors are improved greatly by integrated use of VLBI and SLR data.
【CateGory Index】： P228