The main purpose of this paper is to detail the application of well-developed technologies (UAV and SfM) to an under-explored field of geoscience: the landform change monitoring of highly dynamic environments such as volcanic and hydrothermal fields. It is exceptionally useful in the geosciences when combined with the Structure from Motion (SfM) algorithm. Digital photogrammetry using UAV image acquisition has become an important and widely used technique for investigating and monitoring areas prone to natural hazards.
This active volcanic context, one of the largest and most dangerous in the world, is located inside the Campi Flegrei caldera ( Figure 1) near Naples, Italy. In this paper, we present the first application of time-lapse unmanned aerial vehicle (UAV) photogrammetry for landform monitoring in the Pisciarelli fumarole field. The results highlight the benefits of photogrammetry data using UAV for the accurate remote monitoring and mapping of active volcanoes and craters in harsh and dangerous environments. This approach allowed us to create dense 3D point clouds and digital orthophotos spanning one year of surveys. In late-20, we performed repeated photogrammetric UAV surveys using the Structure from Motion (SfM) technique. This degassing activity is episodically accompanied by seismic swarms and macroscopic morphology changes such as the appearance of vigorously degassing vents, collapsing landslides, and bubbling mud. This area, an unstable fumarole field located several hundred meters east of the Solfatara Crater of the Campi Flegrei caldera (southern Italy), is characterized by consistent soil degassing, fluid emission from ephemeral vents, and hot mud pools. Our study comprises a short-term (in geological terms) monitoring program of the dynamic and diffuse Pisciarelli degassing structure caused by the interplay between intensive rainfall and hydrothermal activity. This can aid in rapid mapping and analyses of dynamic processes that are modifying contemporary landscapes, particularly through the creation of a time series of digital data to help monitor the geomorphological evolution of volcanic structures. The combined use of unmanned aerial vehicles (UAV) and digital photogrammetry (DP) represents a rapidly evolving technique that permits geoscientists to obtain detailed spatial data. The utility of new imaging technologies to better understand hazardous geological environments cannot be overstated. We’ve taken our most popular GoPro videos and turned them into GoPro Edit Templates that. to import your GoPro media, play back your videos and Time Lapse photo sequences, view photos and create professional-quality videos. Top Software Keywords Show more Show less
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