HR: 1400h
AN: G33B-06    [Abstracts]
TI: Discussion about Formulas to Calculate Variation of Plumb-Line Deflection
AU: * Li, Y
EM: liliyou_2000@yahoo.com.cn
AF: Yue_feng Li, 120 Caobao Road, Shanghai 200235, P.R. China, Shanghai, 200235, China
AU: Ding, X
EM: gps526@sohu.com
AB: Formula to calculate variation of plumb-line deflection by the way of repeated gravity measurement is discussed. Two different are given:one is basic on time-variation of perturbation potential,the other is basic on time-variation of gravity potential. The theroetic basis and deducing process of the latter formula are emphasized. By analysis it is konwn that they are consistent in theory, but the latter is clearer in thought and simpler in form and less effect in far area and lower precision than the one calculated by the former.
UR: http:www.agu.org/liyuefeng
DE: 1200 GEODESY AND GRAVITY
DE: 1211 Non-tectonic deformation
DE: 1217 Time variable gravity (7223, 7230)
DE: 1219 Gravity anomalies and Earth structure (0920, 7205, 7240)
DE: 7223 Earthquake interaction, forecasting, and prediction (1217, 1242)
SC: Geodesy [G]
MN: 2007 Joint Assembly