[G07-P] Poster

[G07-P-11] Contribution for international geodetic frame of SLR observation at the Shimosato Hydrographic Observatory

^○Hiroko Fukura¹, Yusuke Yokota² (1.Shimosato Hydrographic Observatory, Japan Coast Guard, Wakayama, Japan, 2.Hydrographic and Oceanographic Department, Japan Coast Guard, Tokyo, Japan)

The Hydrographic and Oceanographic Department of the Japan Coast Guard (JHOD) has been carrying out the Satellite Laser Ranging (SLR) observation at the Shimosato Hydrographic Observatory (SHO) since 1982. For 35 years, the SLR observation at the SHO contributed to a construction and a development of the International Terrestrial Reference Frame (ITRF), and also made a major contribution to an establishment of a world geodetic system as a national geodetic system in Japan in April 2002. After the major renovation between 2007 and 2009, the Shimosato station observed a crustal movement of the 2011 Tohoku-oki earthquake and continuously contributed to a global geodesy. The ranging precision (normal point RMS) maintains high accuracy of 1 - 2 cm.
In this presentation, we review a history of the SLR observation at the SHO. Our continuous SLR observation is important for a discussion to develop the future GGOS.

Acknowledgements: We acknowledge supports from NAO, JAXA, NICT, ILRS, and many associations around the world. We thank the senior staffs in the Shimosato Hydrographic Observatory for their efforts for maintenance and operation of SLR continuous observation.