| Budget Amount *help |
¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2013: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2012: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2011: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
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| Research Abstract |
On the basis of East Japan great earthquake disaster, toward vulnerability evaluation of alluvial low land, the history of the alluvial plain formation and formation environment was elucidated from a global viewpoint. The alluvial bed of the downstream side of the main river of Japan makes a letter of prism generally, and the cross section is proportional with a basin area. In the northeastern Pacific offing earthquake in Japan, liquefaction might tend to be intense at the place where a prism deposited thick. The alluvial bed is formed by the interaction with the sea area through the glacial sea level change, a long-term crustal movement pattern, the combination of climate, flood properties and sediment supply changes of the river basin. A viewpoint of the mass transfer from the land with the order to the sea is indispensable for the regionality elucidation of alluvial plains for hundreds of thousands of years.
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