A TRIGGER FACTOR ANALYSIS METHOD FOR SIMULTANEOUS SLOPE FAILURE HAZARD MAPPING

• NOZAKI Ryo

• KOJIMA Hirohito

Bibliographic Information

Other Title

• 同時多発型斜面崩壊を対象とした誘因影響広域分析方法の一提案

Abstract

 This paper proposes an inverse analysis method for estimating unobserved trigger factors according to different types of simultaneous slope failures. Through the structural equation modeling, Trigger Factor maps (termed "TF maps") produced by using causal factors (i. e., geographical information, remotely sensed data). Pointing out the limitations of pair-wise comparative strategy on the TF maps, a color composite map (i. e., Trigger Factor Influence map: TFI map) using TF maps are newly produced. The combination case of assigning the TF maps to RGB-color planes are determined based on an index of NCCT (Normalized Correlated Color Temperature) which represents the relationship between chromaticity and human visual perception. Through the cases examined, we have confirmed the proposed TFI map, as a heuristic visualization strategy, is effective for simultaneously evaluating the hazardous areas affected by the different types of slope failures.

Journal

• Journal of Japan Society of Civil Engineers, Ser. F3 (Civil Engineering Informatics)

  Journal of Japan Society of Civil Engineers, Ser. F3 (Civil Engineering Informatics) 69 (1), 21-33, 2013

  Japan Society of Civil Engineers

Keywords

• types of slope failures
• trigger factor
• inverse estimation
• pseudo-color composite
• correlated color temperature
• geographical information
• remote sensing

Details

• CRID: 1390282680332310528
• NII Article ID: 130004962236
• DOI: 10.2208/jscejcei.69.21
• ISSN: 21856591
• Text Lang: ja
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed