River's Impact Rate to Sandy Beaches with Mineral Analysis based on Colors in Awaji Island

• TSUJIMOTO Gozo

  Kobe City College of Technology

• TAMAI Masahiro

  Osaka University

Bibliographic Information

Other Title

• 色彩に基づく鉱物分析による淡路島内の海浜への河川の影響度
• シキサイ ニ モトズク コウブツ ブンセキ ニ ヨル アワジシマ ナイ ノ カイヒン エ ノ カセン ノ エイキョウド

Abstract

Using digital images of sand grain with a scanner, the training data set on minerals; quartz, feldspar, shale silicified stone and chart was made. The data set could be divided into five regions using the CIEL*a*b* color space methods. Especially color brightness and satulation are important to identity mienrals. Shapes of quartzs and feldspars are more rounder than other minerals. Filed observations were carruied out in Awaji Island and 17 samples of beach sand and 51 river were colleceted. The optimiation method was applied to estimate the impact rate from rivers toward beaches with a distance among a beach and a river. The estimated results are corresponding to the existing knowledge.

Journal

• Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)

  Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) 70 (2), I_646-I_650, 2014

  Japan Society of Civil Engineers

Keywords

• image picture
• sand grain
• CIELab

Details

• CRID: 1390282680298031616
• NII Article ID: 130004706951
• NII Book ID: AA12508551
• DOI: 10.2208/kaigan.70.i_646
• ISSN: 18838944
• ISSN: 18842399
• NDL BIB ID: 025933170
• Web Site: http://id.ndl.go.jp/bib/025933170
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I025933170
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed