Analysis of GPS Campaign Observations of the Asia Pacific Regional Geodetic Project (APRGP) -Establishment of a Velocity Field-
Cooperative campaigns by space geodetic techniques have been actively carried out around the world to develop global GIS infrastructures. Asia Pacific Regional Geodetic Project (APRGP), as a regional campaign, has promoted annual observations mainly by GPS to densify the International Terrestrial Reference Frame (ITRF). To construct an ITRF based frame, not only positions but also velocities are necessary. Nevertheless, establishing a velocity field in the region has not been achieved yet. In this paper, we estimate a velocity field, using GPS data obtained from 1998 to 2001 campaings. The result shows an excellent agreement with the plate model.
KeywordsAsia Pacific Regional Geodetic Project APRGP ITRF PCGIAP
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