Impact of different landform representations between aerial photographs and multi-resolution slope maps on landslide susceptibility assessment

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Key Points

The research aims to examine how different landform representations impact landslide susceptibility assessments.
Evaluated the visibility of landscapes using aerial photographs and 1m DEM slope maps.
Assessed the relationship between vegetation conditions and the visibility of microtopography.
Organized microtopography elevation data from various DEM slope maps systematically.
Used regression analysis to determine the scale of landslides visible in different representations.
Evaluated the accuracy of AHP scores based on topographic representation.
1m DEM slope maps provided high accuracy in representing landforms.
Aerial photographs and 10-30m DEM maps tended to underestimate the risk of small landslides.
Visibility of microtopography was significantly influenced by vegetation conditions.

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Assesses how aerial photographs and slope maps affect landslide risk evaluation, suggesting improved accuracy is needed.

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Koji IKEDA (2026) studied this question.

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