Vol.44-4 CONTENTS

Akiko YAMADA,Kazushi MARUYAMA,Osamu OOTAKI,Akifusa ITABASHI,Yuki HATANAKA and Shin-ichi MIYAZAKI

1. Introduction
2. GPS data
3. Analysis
    3.1 Software
    3.2 Precise Point Positioning (PPP)
    3.3 Reference Frame
4. Results
    4.1 Syowa station
    4.2 Antractic Plate
5. Conclusion
Acknowledgment
References