Stability Test to Validate the GNSS-A Seafloor Positioning with Kinematic Precise Point Positioning (in Japanese with English abstract) ...... Shun-ichi Watanabe, Yusuke Yokota and Tadashi Ishikawa ... 1-7
REPORTS
Report of the AGU Fall Meeting 2019 (in Japanese) ...... Hiroshi Kimura ... 8-9
Report of the AGU Fall Meeting 2019 ...... Sindy Carolina LIZARAZO ... 10-11
BOOK REVIEW 12-13
REPORTS
Report of the 27th IUGG General Assembly (in Japanese) ...... Yuta Tokui ... 14-15
LETTERS TO THE EDITOR
Seasonal and Secular Changes of Gravity at Teshikaga, Eastern Hokkaido, Japan, Estimated from Two-Year Superconducting Gravimeter Data (in Japanese with English abstract) ...... ... 16-22
