GNGTS 2023 - Atti del 41° Convegno Nazionale

Session 1.2 - POSTER GNGTS 2023 due to solar radiation, and exclusively map radiation emitted by the hydrothermal system. The flight was designed according to a classic photogrammetric criterion, with forward overlapping of 80% and side lap of 70% at 30m Above Ground Level (AGL) with a spatial resolution of the thermal images of 5 cm/pixel. The UAS image data was processed in Agisoft Metashape (Version 1.5.2.7838), a widely used commercial Structure from Motion (SfM) software package, and a thermal mosaic from infrared images has been sated out. Fig. 2 – Comparison between the: anomaly of the total magnetic field (left) and the thermal UAV survey (right) for the study area “B” located in the “Spiaggia di Levante”. Results and conclusions The total-field magnetic anomaly map of area A is presented in Fig. 1. The total field is generally characterized by negative values. This is in agreement with the observations from other magnetic surveys (airborne, shipborne or ground-based) carried out at Vulcano Island at larger scale and at