| Project/Area Number |
15K14037
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Hydraulic engineering
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| Research Institution | Hiroshima University (2016)
Saitama University (2015) |
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Principal Investigator |
Lee Han Soo 広島大学, 国際協力研究科, 准教授 (10535082)
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| Research Collaborator |
Sönke Dangendorf University of Siegen, Research Institute for Water and Environment
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| Project Period (FY) |
2015-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2016: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2015: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
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| Keywords | 海面上昇 / 非線形トレンド / アンサンブル経験的モード分解 / 相対性海面上昇 / 地盤沈下 / 経験的モード分解 / 地盤地下 / 海面上昇シナリオ / 氷河性地殻均衡 / 鉛直地殻変動 / 時系列解析 / 地球温暖化 / 地殻変動 |
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| Outline of Final Research Achievements |
Coastal zone management and adaptation to sea-level rise (SLR) are largely based on SLR scenarios. However, our limited understanding of ice-sheet dynamics and the lack of long-term observations of ice-sheet changes make it difficult to predict SLR accurately by a process-based dynamic model. Moreover, a number of large coastal cities in Asia have experienced more rapid subsidence rates of several centimetres per year compared with the global or regional SLR rate because of soil compaction, groundwater withdrawal, rapid urbanization, and poor water supplies. Therefore, we estimated the non-linear trends of SLR from long-term sea-level records in the globe by using improved ensemble empirical mode decomposition and performed projections of the non-linear trends by improved semi-empirical formula for SLR scenarios considering the local factors such as vertical land motion and glacial isostatic adjustment.
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