Published in Scientific Papers. Series E. Land Reclamation, Earth Observation & Surveying, Environmental Engineering, Vol. XIII
Written by Alexandru SÎNTU-LĂSAT
The present paper aims to highlight a more efficient and safer way to estimate the flood limits especially in hard-to-reach areas (hill-mountain) in order to reduce the calamities caused by flash-floods through water management works. It was used an UAV (drone) with D-RTK technology together with a GPS station with which there were captured elevation points on the ground. The study area is located in Alba County on the Răchita Valley near the Sebeș city, area having a strong torrential character, especially during short-term and high-intensity rains. In 2019-2020 winter, a flood of 106 m3/s was recorded, representing a huge value compared to the multiannual flow of the main water course of 8.88 m3/s. The estimation of the flood limits is fully computerized, obtaining the most accurate results in order to be able to design hydraulic specifications for hydrotechnical schemes and structures needed considering both structural and environmental sides.
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