2013 Fiscal Year Final Research Report
Formation model of alluvial lowlands in Japan toward vulnerability evaluation
| Project/Area Number |
23501238
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Geography
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| Research Institution | The University of Tokyo |
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Principal Investigator |
SUGAI Toshihiko 東京大学, 新領域創成科学研究科, 教授 (90251321)
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| Project Period (FY) |
2011 – 2013
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| Keywords | 地形 / 沖積層 / 河川 / 災害脆弱性 / 海面変動 / 地殻変動 / 流域環境 / 第四紀 |
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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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[Presentation] Late Quaternary Avulsion history of the lower Ili River, Central Eurasia controlled by climate and Balkhash lake level changes2013
Author(s)
Shimizu, H., Sugai, T., Kondo, R., Sato, A., Montani, H. Nakayama, Y. and Endo, K.
Organizer
Environment evolution session, IGU Kyoto Regional Conference
Place of Presentation
京都、京都国際会議場
Year and Date
2013-08-06
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[Presentation] Last 600 ka terrestorial environment changes reconstructed from analysis of the Uwa Basin-fill Sediment, SW Japan2011
Author(s)
Sugai, T., Sasaki, Y., Ohno, Y., Nishizaki, N., Ikeda, M., Yanagida, M., Kojima, K. and Morita, Y.
Organizer
INQUA XVIIII Congress
Place of Presentation
スイス、ベルン
Year and Date
2011-07-26
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[Presentation] Holocene climatic changes of the Balkhash lake region, Kazakhstan reconstructed from high-resolution XRF scanning analyses of the lake sediments coupled with geomorphic investigations of the catchment area2011
Author(s)
Sugai, T., Endo, K., Montani, H., Haraguti, T., Chiba, T., Shimizu, H., Sato, A., Nakayama, Y., Nakamura, A., Aubekerov, B., Sala, R., Jean M., Kubota, J.
Organizer
INQUA XVIIII Congress
Place of Presentation
スイス、ベルン
Year and Date
2011-07-26
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[Presentation] Holocene environmental evolution based on Balkhash lake cores in Central Eurasia2011
Author(s)
Endo, K., Sugai, T., Haraguti, T., Suzuki, S., Matsuoka, H. and Nakao, Y.
Organizer
INQUA XVIIII Congress
Place of Presentation
スイス、ベルン
Year and Date
2011-07-26
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