海底基準点の測地測量に関する基礎実験

抄録

For the detection of plate motions and deformations of oceanic crust, one approach is to construct the seabottom geodetic stations(SGS). In this paper, we conducted a pilot field experiment for the assessment of the possibility of the precise positioning of SGS. The method of positioning is the combination of kinematic GPS positioning of a boat and the acoustic ranging from the boat to the sea bottom. The depth of SGS is about 100 m, and the baseline length from the reference point of kinematic GPS to the boat is about 1.5 km. The results of the data processing show us the possibility of the SGS positioning with the precision of 10 cm.