## 5 Conclusions  
Monitoring a disastrous event is important at present because the consequences of such a phenomenon directly affect society. The involvement of the authors in this research area was motivated by this and aimed to contribute to the prevention of disasters and to the limitation of material and (especially) human damage caused by them. The purpose of this work was the study of an area with high flood potential of the residential houses in the immediate vicinity. As in any other field, there are advantages and disadvantages to the use of photogrammetric measurement methods, such as: The first significant advantage is the time taken to take aerial photographs; and the reduced staff, as only one authorized person is required to perform the flight. Important disadvantages to mention are the tracking of favorable weather conditions, the energy deficit of the battery, the need for the presence of a specialized person in the processing of the data acquired in the field for their correctness, and, from the authors' point of view, the high cost of the necessary equipment in order to conduct photogrammetric measurements. In terms of the latter disadvantage, this study was conducted with UAV and GNSS equipment at the entry-level range. The purpose of this work was to develop a complete workflow that includes all the stages conducted to accomplish a simulation in the case of the increase in the water flow of the Somesul Mic River. To achieve the final goal, namely, the simulation of the process of increasing the water flow, it was necessary to undertake the following steps:  
* The creation of a topographic map for the studied area using UAV technique was achieved after downloading and processing the images taken during the two UAV flights. Good precisions were obtained (2-3 cm/pixel), sufficient to create an orthophoto image, which faithfully reflected the studied area and that are the basis for the preparation of subsequent documents (DEM, level curves, flood simulation, etc.) * The data processing developed following the drone flight was undertaken with the Agisoft Metashape 1.8.5 software, processed and transformed into shapefiles with the help of Global Mapper, and processed with the help of the HEC-RAS software to obtain the estimated results. * The preparation of documentation was conducted by converting the file formats resulting from the images by transforming them into HEC-RAS-compatible files (shapefiles). * Creating a simulation to present possible disasters: The elevations at which the Somes River is located led to the determination of the river's volume. The minimum elevation of the river is 335.146 m-0 m\({}^{3}\) and the maximum elevation is 408.927 m-1055.577 \(\times\) 103 m\({}^{3}\). The dam was defined as a unifying element that connects the Somes River, which represents the water drainage area, and the water overflow area, represented by the possibly flooded area. The intended simulation was successfully conducted for the three phases of the possible flood (primary, intermediate, and final), which proves that the initial data taken with the drone were suitable for creating a complete workflow. This study therefore implemented a complete workflow model, starting at the stage of retrieving primary information (in the form of images from the drone), continuing with the stage of downloading and processing, and ending with the stage of transformation, modeling, and processing using specialized flood simulation software. In the future, the authors aim for this simulation to be used by specialists to help people in areas possibly affected by natural disasters. The development of the study procedure can be conducted by adding several cycles of measurements with the aim of a more thorough detailing, for a better clarity of the evolution of the possible flooding process. Another approach direction for future studies is related to the applications of UAV LiDAR sensors for collecting information that can be used for flooding monitoring and simulations.