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Use of Drones for the Topo-Bathymetric Monitoring of the Reservoirs of the Segura River Basin

1
GIS and Remote Sensing, Instituto Murciano de Investigación y Desarrollo Agrario y Alimentario (IMIDA), C/ Mayor s/n, La Alberca, 30150 Murcia, Spain
2
Department of Mining and Civil Engineering, Universidad Politécnica de Cartagena, 30202 Murcia, Spain
3
Crop Research Institute, (VURV), 161 06 Prague, Czech Republic
4
Hydrological Planning Office, SRB. Plaza Fontes, 30001 Murcia, Spain
*
Author to whom correspondence should be addressed.
Water 2019, 11(3), 445; https://doi.org/10.3390/w11030445
Received: 27 December 2018 / Revised: 20 February 2019 / Accepted: 24 February 2019 / Published: 2 March 2019
(This article belongs to the Special Issue Water Management Using Drones and Satellites in Agriculture)
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Abstract

The Segura River Basin (SRB), located in the South East of Spain, has the lowest percentage of renewable water resources of all the Spanish basins. Therefore, knowledge of the annual rate of water reservoir sedimentation is an important issue to be resolved in one of the most water-stressed regions in the western Mediterranean basin. This paper describes the sensors developed in collaboration with technology-based enterprises (aerial drone, floating drone, and underwater drone), and the methodology for integration of the different types of data acquired to monitor the reservoirs of the SRB. The proposed solution was applied to 21 reservoirs of the SRB. The proposed methodology is based on the use of unmanned aerial vehicles (UAV) for photogrammetry of the reservoir surface area. For each reservoir, two flights were completed, with 20 cm and 5 cm resolution, respectively. Then, a triangular irregular network mesh was generated by GIS techniques. Surface water vehicles (USV) and underwater remote-operated vehicles (ROV) were used to undertake bathymetric surveys. In addition, water quality measurements were made with an ROV device. The main results consist of topographic and bathymetric measurements for each reservoir, obtained by using equipment based on OpenSource technology. According to the results, the annual rate of storage capacity loss of water resources in the SRB´s reservoirs is 0.33%. View Full-Text
Keywords: Photogrammetry; Bathymetric probe; OpenSource; Ardupilot Photogrammetry; Bathymetric probe; OpenSource; Ardupilot
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Erena, M.; Atenza, J.F.; García-Galiano, S.; Domínguez, J.A.; Bernabé, J.M. Use of Drones for the Topo-Bathymetric Monitoring of the Reservoirs of the Segura River Basin. Water 2019, 11, 445.

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