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Discussion papers | Copyright
https://doi.org/10.5194/nhess-2017-337
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 10 Oct 2017

Research article | 10 Oct 2017

Review status
This discussion paper is a preprint. A revision of the manuscript is under review for the journal Natural Hazards and Earth System Sciences (NHESS).

Quick Response Assessment of the Impact of an Extreme Storm Combining Aerial Drone and RTK GPS

Arthur C. Trembanis1, Enrico Duo2, Stephanie Dohner1, Edoardo Grottoli2, and Paolo Ciavola2 Arthur C. Trembanis et al.
  • 1School of Marine Science and Policy, University of Delaware
  • 2Department of Physics and Earth Sciences, University of Ferrara

Abstract. Developing and implementing a quick response post-storm survey protocol has the potential to improve impact assessments of coastal storms. Pre- and post-event surveys are essential to properly quantify the storm impacts on the coast. In this study, a combination of traditional RTK GPS and Unmanned Aerial Vehicle drone platform was utilized as part of a coordinated storm response workflow. The comprehensive approach employed in this pilot case study was conducted on the Emilia-Romagna coast (Italy), in the immediate aftermath of an extreme storm event that impacted the shoreline on the 5th–6th February 2015 called the Saint Agatha Storm. The activities were supported by timing information on the approaching storm provided by the regional early warning system. We collected aerial photos from a commercial off-the-shelf drone immediately after the Saint Agatha Storm and generated both orthomosaic and digital elevation models utilizing structure-from-motion photogrammetry techniques. The drone- based survey approach allowed us to quickly survey an area of 0.25km2 within a 10-minute flight resulting in a ground sampling distance of 2.5cm/pixel. Flooding and erosion impacts are analyzed and presented for the target study area. Limitations and possible applications for coastal management of the quick response post-storm surveying protocol are highlighted.

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Arthur C. Trembanis et al.
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Short summary
This study illustrates the development and implementation of a novel rapid response storm impact survey that combined the use of drone based aerial photogrammetry with numerical modeling. The comprehensive approach employed in this pilot case study was conducted on the Emilia-Romagna coast (Italy), in the immediate aftermath of an extreme storm event that impacted the shoreline on the 5th–6th February 2015 called the Saint Agatha Storm.
This study illustrates the development and implementation of a novel rapid response storm impact...
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