| Short title | Gravity and Geoid | 
	
		| Oral presentation Date/Room/Chair
 | May 22 PM1 (14:15 - 16:00) | 301B | Sachie Shiomi 
			/ Yusaku Tanaka | 
	
		| May 22 PM2 (16:15 - 18:00) | 301B | Sachie Shiomi 
			/ Yusaku Tanaka | 
	
		| Poster presentation Date/Room
 | May 22 (Core Time 18:15 - 19:30) | Convention Hall | 
	
		| Contact | Yuichi Imanishi | 
	
		| Email | imanishi@eri.u-tokyo.ac.jp | 
	
		| Convener | Yuichi Imanishi 
			/ Koji Matsumoto | 
	
		| Scope | Gravity originates from the universal gravitation, and has fundamental effects on the structure and dynamics of the Earth, the Moon and the planets. In this session, we solicit papers on a wide variety of topics related to gravity and geoid, including the theory of the gravity field, absolute/relative gravity measurements/observations, data analysis for satellite gravity missions, and development of gravity sensors. | 
	
		| Notes |  | 
	
		| Time | Presentation No | Title | Author | Presenter | Abstract | 
	
		| Oral Presentation   May 22 PM1 (14:15-16:00) 301B                              to the top | 
	
		| 14:15 - 14:30 | SGD22-01 | About a small throw-up method absolute gravimeter under development | Hirotaka Sakai Akito Araya
 Tsuneya Tsubokawa
 other
 | Hirotaka Sakai | English | 
	
		| 14:30 - 14:45 | SGD22-02 | Development of a gravity gradiometer system for submarine gravity prospecting 3 | Akito Araya Masanao Shinohara
 Toshihiko Kanazawa
 other
 | Akito Araya | English | 
	
		| 14:45 - 15:00 | SGD22-03 | Development of a free-fall interferometric gravity-gradiometer for volcanological studies in the Mt Aso area | Sachie Shiomi Tsuneomi Kagiyama
 Shin Yoshikawa
 | Sachie Shiomi | English | 
	
		| 15:00 - 15:15 | SGD22-04 | Gravimetrical vertical array observation -A preliminary report- | Toshiyuki Tanaka HONDA, Ryo
 ASAI, Yasuhiro
 other
 | Toshiyuki Tanaka | English | 
	
		| 15:15 - 15:30 | SGD22-05 | Peculiar Gravity Change at the Kirishima Volcano during Vulcanian Eruption Phase in 2011 | Shuhei Okubo Yoshiyuki Tanaka
 Yuichi Imanishi
 | Shuhei Okubo | English | 
	
		| 15:30 - 15:45 | SGD22-06 | The postseismic gravity changes observed with GRACE satellite. | Yusaku Tanaka Kosuke Heki
 | Yusaku Tanaka | English | 
	
		| 15:45 - 16:00 | SGD22-07 | Precise gravity field determination around Syowa station, Antarctica, by combining satellite and in-situ gravity data | Yoichi Fukuda Yoshifumi Nogi
 Kazuya Matsuzaki
 | Yoichi Fukuda | English | 
	
		| Oral Presentation   May 22 PM2 (16:15-18:00) 301B                              to the top | 
	
		| 16:15 - 16:30 | SGD22-08 | Gravity observation using a superconducting gravimeter at Ishigakijima, Japan (part 2) | Yuichi Imanishi Kazunari Nawa
 Yoshiaki Tamura
 other
 | Yuichi Imanishi | English | 
	
		| 16:30 - 16:45 | SGD22-09 | Continuous gravity observation using a gPhone-133 at a hot spring area of Hachijojima, Japan | Kazunari Nawa Mituhiko Sugihara
 Yuji Nishi
 other
 | Kazunari Nawa | English | 
	
		| 16:45 - 17:00 | 3-min talk in an oral session@(SGD22-P01/SGD22-P02/SGD22-P06/SGD22-P07/SGD22-P09) | 
	
		| Presentation No | Title | Author | Presenter | Abstract | 
	
		| Poster Presentation   May 22  Core Time (18:15-19:30) Convention Hall                    to the top | 
	
		| SGD22-P01 | Publication of new Japan Gravity Reference System 2011 | Seiji Okamura Takayuki Miyazaki
 KAWAWA, Hiroshi
 other
 | Seiji Okamura | English | 
	
		| SGD22-P02 | Reprocessing of Shirase shipboarne gravity data | Kazuya Matsuzaki Yoichi Fukuda
 Yoshifumi Nogi
 | Kazuya Matsuzaki | English | 
	
		| SGD22-P03 | Sea surface gravity changes observed prior to March 11, 2011 Tohoku earthquake II | Seiji Tsuboi Takeshi, Nakamura
 | Seiji Tsuboi | English | 
	
		| SGD22-P04 | Mass changes in polar ice sheets from low-degree gravity field by SLR | Koji Matsuo Benjamin Fong Chao
 Toshimichi Otsubo
 other
 | Kosuke Heki | English | 
	
		| SGD22-P05 | Gravity change simulations of various environmental changes around TRIES gravity stations | Ryo Honda Toshiyuki Tanaka
 Fumiaki Kimata
 | Ryo Honda | English | 
	
		| SGD22-P06 | Gravity changes around Ito campus, Kyushu University by using relative and absolute gravity measurement | Jun Nishijima Yasuhiro Fujimitsu
 Yoichi Fukuda
 | Jun Nishijima | English | 
	
		| SGD22-P07 | Numerical estimations of hydrological gravity changes at Cibinong, Indonesia with empirical and physical models | Matomu Itakura Takahito Kazama
 Yoichi Fukuda
 | Matomu Itakura | English | 
	
		| SGD22-P08 | Absolute gravity changes caused by long-term slow slip events in Ryukyu in May and December 2012 | Yoshiyuki Tanaka Seiji Okamura
 Takayuki Miyazaki
 other
 | Yoshiyuki Tanaka | English | 
	
		| SGD22-P09 | Soil parameters and their heterogeneities at Yaeyama Islands for precise estimation of hydrological effects on gravity | Takahito Kazama Kazunari Nawa
 Yoshiyuki Tanaka
 other
 | Takahito Kazama | English | 
	
		| SGD22-P10 | Rough Estimate of P-wave Velocity beneath the VERA Ishigaki Island Station for Improving Accuracy of Gravity Analysis | Toshiki Ohtaki Kazunari Nawa
 | Toshiki Ohtaki | English |