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Fig. 3 | Journal of Applied Volcanology

Fig. 3

From: Lava flow hazard prediction and monitoring with UAS: a case study from the 2014–2015 Pāhoa lava flow crisis, Hawai‘i

Fig. 3

a Comparison between 1 m UAS-derived flow paths (yellow lines) and 10 m USGS DEM (blue lines). The advancing lava flow is depicted as a series of flow outlines produced from HVO field mapping from Dec 16, 2014 through Jan 10, 2015. The 1 m UAS flow paths were generated from data collected on Dec 16, 2014 – Dec 17, 2014. The purple box highlights the area of panel c. Refer to USGS, 2017 to search for June 27th flow maps. b Final extent of the June 27th lava flow. c UAS-derived 3D point cloud showing the 5 m ditch surrounding the Pāhoa marketplace, a topographic feature that was not identified from the 10 m USGS DEM due to coarse spatial resolution

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