A new GPS network around the Pamir: preliminary results from the first survey

We have established a new survey mode GPS network around the Pamir, a highly tectonic active region associated with India-Asia collision. The network consists of 17 sites between 36° N and 41° N and 68 ° E and 76 ° E. This network has been surveyed once from 13 July to 24 August 2011. Each site has been surveyed for at least 48 hours over 3 to 4 days with Trimble NetR8 receivers and zephyr geodetic antennas. We use GAMIT/GLOBK software from the Massachusetts Institute of Technology to process the data using the nearest available Continuous GPS sites available (BJFS, XIAN, ULAB, IRKT, KUNM, LHAZ, URUM, GUAO, HYDE, SELE, POL2, TASH, KIT3). Then we combine each daily solution with the global daily solution provided by the Geodesy and Geodynamics team at MIT to estimate the ITRF2008 position of all the sites at their surveyed time. From the first survey, the quality of measurements is evaluated by presenting the short-term position repeatability of each site. Finally, combined with the re-survey finished in 2012, the site velocities have been estimated with respect to the stable Eurasia framework.