Report
桜島火山における繰り返し相対重力測定 (2017年5月～2018年2月) ; Repeated Relative Gravity Measurements in Sakurajima Volcano (May 2017-February 2018)
| العنوان: | 桜島火山における繰り返し相対重力測定 (2017年5月～2018年2月) ; Repeated Relative Gravity Measurements in Sakurajima Volcano (May 2017-February 2018) |
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| المؤلفون: | 風間, 卓仁, 山本, 圭吾, 平良, 真純, 大島, 弘光, 前川, 徳光, 岡田, 和見, 園田, 忠臣, 井口, 正人 |
| المساهمون: | KAZAMA, Takahito, YAMAMOTO, Keigo, HIRAYOSHI, Masumi, OHSHIMA, Hiromitsu, MAEKAWA, Tokumitsu, OKADA, Kazumi, SONODA, Tadaomi, IGUCHI, Masato, カザマ, タカヒト, ヤマモト, ケイゴ, ヒラヨシ, マスミ, オオシマ, ヒロミツ, マエカワ, トクミツ, オカダ, カズミ, ソノダ, タダオミ, イグチ, マサト, 20700363, 60144391 |
| بيانات النشر: | 京都大学防災研究所 Disaster Prevention Research Institute, Kyoto University |
| سنة النشر: | 2018 |
| المجموعة: | Kyoto University Research Information Repository (KURENAI) / 京都大学学術情報リポジトリ |
| مصطلحات موضوعية: | 桜島火山, 相対重力, 質量移動, 地殻変動, 陸水擾乱, Sakurajima Volcano, relative gravity, mass redistribution, crustal deformation, hydrological disturbance, 519.9 |
| الوصف: | Relative gravity values were measured at 19 gravity points in and around Sakurajima Volcano in May, July, September and October 2017, and February 2018, to monitor spatiotemporal mass variations associated with volcanism. The gravity values observed from 2006 to 2018 showed a clear increase in the central part of the volcano by up to +6.3 μGal/yr. The gravity increase suggests the existence of mass increase under the central Sakurajima without volume inflation, because the gravity increase cannot be fully explained by the ground subsidence which have been measured with leveling surveys. The mass increase value is calculated to be about 1-3 × 1010 kg/yr, assuming that the point mass is located just under the S423 gravity point at the depth of 3-5 km below sea level. In order to more precisely model the mass increase and its spatiotemporal variation, the effects of hydrology and crustal deformation should be corrected from the observed gravity data. |
| نوع الوثيقة: | report |
| وصف الملف: | application/pdf |
| اللغة: | Japanese |
| تدمد: | 0386-412X |
| Relation: | http://www.dpri.kyoto-u.ac.jp/publications/nenpo/; http://hdl.handle.net/2433/235850; AN00027784; 京都大学防災研究所年報. B; 61; B; 330; 336; Disaster Prevention Research Institute Annuals. B |
| الاتاحة: | http://hdl.handle.net/2433/235850 |
| رقم الانضمام: | edsbas.851200AA |
| قاعدة البيانات: | BASE |
| تدمد: | 0386412X |
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