Study on Geo-dynamics in Southwestern Japan Using Satellite Data and Terrestrial Observational Data

1）结合GPS/测井数据和重力测量数据，精确确定了日本西南部的大地水准面起伏。2）在别府地区进行了重力测量和GPS测量，详细调查了该地区的地壳结构。3）收集了卫星测高数据，研究了日本西南部海面变化与地壳形变的关系。4）调查了别府-岛原地堑地震活动的时空变化。5）通过在神户使用激光应变仪和在京都使用超导重力仪来监测近畿地区的地壳运动和重力变化。

1) Geoid undulation in southwestern Japan was precisely determined by combined use of GPS/lavelling data and gravity measurement data.2) Gravity surveys and GPS measurements were carried out in the Beppu area and the crustal structure in this area was investigated in detail.3) Satellite altimetry data were collected for studying the relation between sea surface changes and crustal deformations in southwestern Japan.4) Spatial and temporal changes of seismic activities in the Beppu-Shimabara graben have been investigated.5) Crustal movements and gravity changes in Kinki destrict have been monitored by employing a laser strainmeter in Kobe and superconducting gravimeters in Kyoto.