Articles | Volume 17, issue 9
https://doi.org/10.5194/nhess-17-1505-2017
https://doi.org/10.5194/nhess-17-1505-2017
Research article
 | 
13 Sep 2017
Research article |  | 13 Sep 2017

Application of UAV-SfM photogrammetry and aerial lidar to a disastrous flood: repeated topographic measurement of a newly formed crevasse splay of the Kinu River, central Japan

Atsuto Izumida, Shoichiro Uchiyama, and Toshihiko Sugai

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Cited articles

Bakker, M. and Lane, S. N.: Archival Photogrammetric Analysis of River-Floodplain Systems Using Structure from Motion (SfM) Methods, Earth Surf. Proc. Land., 42, 1274–1286, https://doi.org/10.1002/esp.4085, 2016.
Barredo, J. I.: Major flood disasters in Europe: 1950–2005, Nat. Hazards, 42, 125–148, https://doi.org/10.1007/s11069-006-9065-2, 2007.
Berz, G., Kron, W., Loster, T., Rauch, E., Schimetschek, J., Schmieder, J., Siebert, A., Smolka, A., and Wirtz, A.: World map of natural hazards – a global view of the distribution and intensity of significant exposures, Nat. Hazards, 23, 443–465, https://doi.org/10.1023/A:1011193724026, 2001.
Bristow, C. S., Skelly, R. L., and Ethridge, F. G.: Crevasse splays from the rapidly aggrading, sand-bed, braided Niobrara River, Nebraska: Effect of base-level rise, Sedimentology, 46, 1029–1047, https://doi.org/10.1046/j.1365-3091.1999.00263.x, 1999.
Cahoon, D. R., White, D. A., and Lynch, J. C.: Sediment infilling and wetland formation dynamics in an active crevasse splay of the Mississippi River delta, Geomorphology, 131, 57–68, https://doi.org/10.1016/j.geomorph.2010.12.002, 2011.
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Short summary
Geomorphic impact of the 2015 flood of the Kinu River, which created a new crevasse splay on its floodplain, was quantified by volumetric calculations using three topographic data obtained by aerial laser scanning (ALS) and UAV photogrammetry. Topographic changes on the order of 0.1 m were detected, and the erosive character of the crevasse splay was revealed. The results suggest that a combination of ALS and UAV is useful for quantification of sudden topographic changes through disasters.
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