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Assessing Consistency and Inconsistency in Landslide Susceptibility Mapping: Quality Criteria and Pixel-Level Analysis in a Case Study from the Alborz Mountains, North of Tehran, Iran

Author

Listed:
  • Thomas M. Kreuzer

    (University of Würzburg)

  • Martina Wilde

    (University of Würzburg)

  • Christian Büdel

    (University of Würzburg)

  • Peter Priesmeier

    (TH Köln)

  • Alexander Fekete

    (TH Köln)

  • Birgit Terhorst

    (University of Würzburg)

Abstract

Landslide susceptibility maps (LSMs) are vital for hazard mitigation and planning, but their direct comparison remains challenging due to differing methodologies, map classes, and lack of accessible digital data. This study presents a novel approach for quantitative pixel-level comparison of published LSMs—often only available as images—using the PIA software. Fourteen LSMs from eight studies in the Alborz Mountains, Iran, were digitized, standardized to four susceptibility classes, and compared using three quality metrics: area under the curve (AUC), slope of the validation curve, and spatial bias towards mapped landslide cluster areas. Results show that 12 out of 14 LSMs achieve AUC values above 0.5, indicating moderate to good predictive performance, yet spatial agreement is low: only 0.1% of the area has full agreement across all LSMs, and statistically significant modal agreement (at least 8 out of 14 maps concur, $$p

Suggested Citation

  • Thomas M. Kreuzer & Martina Wilde & Christian Büdel & Peter Priesmeier & Alexander Fekete & Birgit Terhorst, 2025. "Assessing Consistency and Inconsistency in Landslide Susceptibility Mapping: Quality Criteria and Pixel-Level Analysis in a Case Study from the Alborz Mountains, North of Tehran, Iran," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 121(15), pages 17707-17729, August.
    • Handle: RePEc:spr:nathaz:v:121:y:2025:i:15:d:10.1007_s11069-025-07487-7
    DOI: 10.1007/s11069-025-07487-7
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