Go To Main Page

Slow slip motion after M9.0 Great Tohoku Earthquake
detected with RTNet Kinematic PPP processing

April 7, 2011
30 sec. GEONET data in northern Japan was post-processed in real-time mode with realtime orbits and clock corrections from the VERIPOS / APEX global service.

The time-series plots below coordinate solutions for multiple GPS stations which locate near latitude line of Oshika (station 0550).

The trends of coordinate solution in northern Japan suggest that we need update "a priori" coordinate for GPS processing.

Please note that we used development version of APEX satellite products for rhis processing, and then missing periods are cuased by restart of the system.


Post-processed PPP Processing in real-time mode with realtime orbits and clock corrections

Plots are sorted depending on length from epicenter.



GEONET station 0037, 30 sec.



GEONET station 0035, 30 sec.



GEONET station 0799, 30 sec.



GEONET station 0196, 30 sec.



GEONET station 0231, 30 sec.



Distribution of used stations in the plots above