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Progress in Earth and Planetary Science
Fig. 2 | Progress in Earth and Planetary Science

Fig. 2

From: Spatial accuracy assessment of unmanned aerial vehicle-based structures from motion multi-view stereo photogrammetry for geomorphic observations in initiation zones of debris flows, Ohya landslide, Japan

Fig. 2

Photos of channel deposits taken at point A in Fig. 1c during (a) the sediment supply season (February 19, 2015) and (b) the debris flow season (September 10, 2016). The red circle indicates a large boulder (approximately 2 m) located at the same position in both photos

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