| 講演要旨(和文) | | 空中重力偏差探査法は地表の凹凸の変化を細かいデータ間隔にて取得できる。DEMとの相関性解析を行うことで表層密度の推定に資する。しかし、取得データには地下深部に起因する影響が残るため上記相関性の精度は悪い。この対処のため水平重力勾配重合法を考案した。地熱地域及び地滑り地域での適用事例を紹介する。 |
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| | 講演要旨(英文) | | The airborne garvity gradient survey is acquired at a short measuring interval which reflects mainly on unevenness of the surface. It helps to estimate the density of surface-layer by the correlation analysis with the DEM. However, its analysis is not be sufficient due to the effects of deeper layers remained in the acquired data. The auther devised the the method of horizontal garvity gradient stack (HGGS) in order to cope with the above obstacles. Tha case studies of the geothermal prospective area as wellas that of the land slide will be presented. |
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