Development of algorithms to increase estimation accuracy of surface displacement using PSInSAR analysis, and understanding complex surface displacement phenomena
| Project/Area Number |
15H06843
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| Research Category |
Grant-in-Aid for Research Activity Start-up
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| Allocation Type | Single-year Grants |
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| Research Field |
Geotechnical engineering
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| Research Institution | Fukada Geological Institute |
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Principal Investigator |
Ishitsuka Kazuya 公益財団法人深田地質研究所, その他部局等, 研究員 (90756470)
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| Project Period (FY) |
2015-08-28 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2016: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Keywords | 地表変動 / PSInSAR解析 / 偏波 / 推定精度 / 関東平野 / 地すべり / 地盤沈下 / PS干渉SAR解析 / 複合的地表変動 / 地下構造 / 最尤法 / 2016年熊本地震 / 自然現象観測・予測 / 地盤工学 / 測地 / 地表変動観測 / 地震後地表変動 / 地熱開発 |
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| Outline of Final Research Achievements |
Persistent scatterer interferometry (PSInSAR) is a satellite-based method to estimate time-series surface displacement with high spatial density. During the series of researches, I revealed the complex surface displacement phenomena and underlying mechanism. Moreover, I developed a new algorithm that increase the estimation accuracy and spatial density of surface displacement.(1)We clarified estimation accuracy of surface displacement by PSInSAR analysis of Japanese SAR satellite, ALOS/PALSAR.(2)We developed a new computer algorithm that increase estimation accuracy and spatial density of surface displacement compared with conventional PSInSAR algorithm.(3)We revealed ground subsidence and uplift around large areas of the Kanto plain (100*100 km2), and clarified spatial distribution of surface displacement. We also revealed landslide displacement around the southwest side of Mt. Hakusan. Based on spatial distribution of surface displacement, we identified active landslide blocks.
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Report
(3 results)
Research Products
(15 results)
