マラッカ・シンガポール海峡の共同水路測量 (続)

概要

論文の詳細を見る
Continued from No. 3, Vol. 82 (1973) of this Journal in which the outline of the Joint Hydrographic Surverys in the Straits of Malacca and Singapore up to the 2nd detailed survey was reported, an account is given to the rest of the project, i.e. the 3rd and 4th detailed surveys. (4) 3rd detailed hydrographic survey. In 1973, the 3rd detailed survey was carried out in the areas shown in Fig. 1. As the result, uncharted shoals with depths of less than 23 metres were revealed to exist 10 in Area IV-A and 16 in Area IV-B. Furthermore, out of those shoals with depths of 23 metres charted according to ships reports, 11 were confirmed not to exist. (5) 4th detailed hydrographic survey. In 1974, the survey was conducted in the areas shown in Fig. 2 and Fig. 3. uncharted shoals with depths of less than 23 metres were revealed to exist 2 in Area IV-D, 3 in Area IV-E and 14 in Area V. In Area IV-D, existence of a sunken wreck was confirmed, while in Area V, 3 charted shoals were confirmed not to exist. *** It is remarked that the results of the Joint Hydrographic Surveys were all adoped on the nautical charts published by the Hydrographic Department of Japan.
社団法人東京地学協会の論文