Crustal deformation of Asia-Pacific area de-termined by the GPS data of APRGP97~ APRGP99

摘要

Using the pseudo-nonfiducial method of regional net, we have treated the GPSdata of APRGP97, APRGP98 and APRGP99 by means of GIPSY software. The precision of coordinates obtained by us for most sites is 1~2 mm for north-south component and 2~5 mm for west-east component and 5~10 mm for vertical component, respectively. We have also obtained preliminarily moving velocities of 84 sites of Asia-Pacific area in ITRF97 frame. Based on the plate motion model derived from ITRF97, we have obtained the deformation velocity of the 84 sites relative to the plate in that they reside and preliminarily analyzed the motions of these sites relative to Eurasian plate.