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- MITSUSHIO Shota
- Department of Civil Engineering, Graduate school of Engineering, Tohoku University
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- UDO Keiko
- International Research Institute of Disaster Science
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- NAGAMATSU Dai
- Department of Regional Environment, Graduate school of Regional Sciences, Tottori University
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- MATSUBARA Yuhei
- Department of Civil Engineering, Graduate school of Engineering, Tottori University
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- MANO Akira
- International Research Institute of Disaster Science
Bibliographic Information
- Other Title
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- 経験的固有関数法を用いた鳥取砂丘の地形変化特性の解析
- ケイケンテキ コユウ カンスウホウ オ モチイタ トットリ サキュウ ノ チケイ ヘンカ トクセイ ノ カイセキ
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Abstract
Tottori Dune, located in San-in Coast, is the largest dune in Japan and stretches 16 km in the longshore direction and 2 km in the cross-shore direction. This study investigates characteristics of Hamasaka Dune deformation, which is a main part of the Tottori Dune in the late 2000s through three-dimensional eigenfunction analysis using monthly ground elevation data. The first spatial and temporal functions demonstrate that sedimentation occurred in the east side of the dune and erosion occurred in the west side and, additionally, the variation accelerated from 2007 to 2008. The relationship between vegetation cover ratio and the first spatial function indicates that vegetation has a function to stabilize the dune morphology.
Journal
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- Journal of Japan Society of Civil Engineers, Ser. G (Environmental Research)
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Journal of Japan Society of Civil Engineers, Ser. G (Environmental Research) 68 (5), I_249-I_254, 2012
Japan Society of Civil Engineers