The knowledge of water springs (Vigna 2014) is fundamental in preventing disasters, evaluating risks, and managing post-disaster activities. The significant increase over the last few decades in hydrological disasters (Guha-Sapir 2011), also due to climate changes, has necessitated the wide-scale monitoring of watercourses (Dabove et al. These methods do not require points on the ground and can be performed using commercial devices.
Integration procedures, also applicable in emergency situations, were developed. This work explains how UAVs can be used to collect this kind of data (through RGB and thermal devices) and presents a strategy to easily integrate the information from these different sensors. UAVs can house many sensors for performing investigations in different bands of the spectrum, including thermal data. Using unmanned aerial vehicles (UAVs) to collect very easily and quickly high-resolution information is thus very interesting. Aerial thermal data can be critical in order to rapidly reveal and map the river supply source points for extensive areas. Knowing the position and the dimension of the supply sources of the river is crucial, since they have a direct influence on its behaviour however, they are not often easily identified, and almost always completely unknown. An accurate description of watercourses helps to easily understand their behaviour both for routine hydrological investigations and in disasters cases.
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