海底地殻変動観測の現状と今後の展開

抄録

Seafloor geodetic measurements are now recognized as crucial tools to effectively monitor the crustal stress accumulation, especially after the Tohoku Earthquake 2011. The situation promotes the Japanese government to invest in facility of these tools to prepare for devastating disaster. Considering the rapid growth in this field, researchers must manage the tools as sustainable manner both in financial and human costs in order to maximize the efficiency for long-lasting operation. In this paper, current state of the seafloor geodesy and problems arose due to the drastic turn after the earthquake are addressed, then advocate how we should act toward the new era.