日本地球惑星科学連合2015年大会

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インターナショナルセッション(ポスター発表)

セッション記号 H (地球人間圏科学) » H-GM 地形学

[H-GM02] Geomorphology

2015年5月26日(火) 18:15 〜 19:30 コンベンションホール (2F)

コンビーナ:*島津 弘(立正大学地球環境科学部地理学科)、小口 千明(埼玉大学大学院理工学研究科)、瀬戸 真之(福島大学うつくしま福島未来支援センター)

18:15 〜 19:30

[HGM02-P01] Measurement of changes in wall surface morphology in Yoshimi-Hyakuana cave by terrestrial laser scanning

*早川 裕弌1小口 千明2有賀 夏希3青木 久3 (1.Univ. Tokyo、2.Saitama Univ.、3.Tokyo Gakugei Univ.)

Detection and quantitative evaluation of changes in surface morphology of rocks are crucial issue for the understanding of processes of weathering. Using terrestrial laser scanning (TLS) approach, detailed topographic measurements of wall surface morphology were performed repeatedly at a test site of Yoshimi-Hyakuana cave in Saitama Prefecture, central Japan. Time series of point clouds and digital elevation models (DEMs) were compared to each other, revealing the locations of centimeter-scale changes in the wall surface, likely induced by salt weathering. The spatial distribution of such surficial changes will be further assessed by continuous measurements, with appropriate accuracy assessments.