SUMMARY
Detemination
of absolute crustal
movement at Tam Đảo – Ba V́ GPS network area
Vy Quốc Hải
In the
first campaign (1996), the HUN1 site of Tam Đảo - Ba V́ GPS network
was observed in 5, 24 hour sessions; In the second one (2006), in this site GPS
data was collected in 12, 24 hour sessions by Trimble 4000SSE/SSi receiver and
Compact L1/L2 with ground plane antennas.
The data
have been processed by GPSurvey and Bernese softwares, using IGS products in
order to determine crustal movements in ITRF.2000. The results show, that the
HUN1 site (representing network area) moves from north to south: 12,6 mm/year ±0,6
mm/year and from west to east: 33,9 mm/year ±
0,4 mm/year.
The
movement vector seems to be a useful piece of evidence for studying geodynamics
in the region.
Ngày
nhận bài: 12/2/2009
Người
biên tập: Phạm Năng Vũ