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Artículos científicos

URI permanente para esta colecciónhttp://10.0.96.45:4000/handle/11056/14823

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Examinando Artículos científicos por browse.metadata.procedence "Observatorio Vulcanológico y Sismológico de Costa Rica"

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    Deploying UAS Directly Inside the Active Crater of Turrialba for Photogrammetry Data Collection Designed for Active Volcano Monitoring
    (DergiPark Akademik (Turquía), 2025) Godfrey, Ian; Sibaja Brenes, José Pablo; Avard, Geoffroy; Martínez Cruz, María; Meghraoui, Khadija
    Abstract. Modern UAS or drones are quickly advancing when it comes to the collection of high-resolution images which are georeferenced and can be used to create a high resolution 3-D model of complex topography. Researchers in the field are making quick progress with new algorithms and analytical applications. These drones are being used in the field of volcanology in quite a useful manner as active volcano craters are one of the more challenging and complex areas to access. UAS have now assisted several departments of Universidad Nacional with data collection, analytics and optimization practices. In May of 2023 with the assistance of the Atmospheric Chemistry Laboratory of Universidad Nacional LAQAT-UNA and the Volcanic and Seismic Observatory of Costa Rica OVSICORI-UNA showed that our efforts using UAS at active volcanoes was greatly beneficial and the collective efforts proved the usefulness of deploying UAS around active degassing volcanoes such as the Turrialba Volcano in Costa Rica. Researchers in several departments at Universidad Nacional are keen on collaborating with others in international institutions for data fusion and synergy, to work together on gathering information on how to create better UAS hardware and payload components, and to cooperate for a better understanding of user needs, regulations and requirements for the safe operation of UAS. UAS allow for collection of accurate images which keep the researchers and remote pilots safe and out of the danger zone. UAS assist with the rapid accumulation of data, they can be pre- programmed for a specific type of UAS flight mission designed for a certain objective of gathering images for complex terrain or topography. The system can be used around active volcano craters, it can monitor mountains and cliffs subject to cracking, erosion and rock falls. Different extreme and complex environments can be documented and digitalized using this same method such as glacier zones and other sophisticated regions with difficult to access areas. All remote flights were using the SINAC Special Use UAS Research Permit – SINAC-ACC-PI-LC-037-2021
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    UAS Infrared Photogrammetry at the Poás Volcano Costa Rica; Digital Modeling of Volcanic Craters Used to Assist with Thermal Energy Release Estimations
    (DergiPark Akademik (Turquía), 2025) Godfrey, Ian; Sibaja Brenes, José Pablo; Avard, Geoffroy; Martínez Cruz, María; Meghraoui, Khadija
    Abstract. Unmanned Aerial Systems frequently abbreviated UAS or drones are quickly emerging as an economical solution to compliment work in various sectors. UAS are being used successfully in analytical services, data collection and algorithm processing, advancements in modern aeronautical practices, data fusion, scientific synergy, UAS hardware solutions for information gathering, regulations for air space and requirements for remote pilots. Today drones are being successfully used in hazard assessment and making valued contributions to the scientific community such as the creation of the thermal 3-D digital model of the Poás Volcano National Park in Costa Rica. Drones were used in Costa Rica during the month of May of 2023 to assist Universidad Nacional with gathering data on the active crater and Laguna Caliente of the Poás Volcano National Park. The objective for using UAS at the summit of the volcano was to generate crater depth and other distance measurements, collect images used with georeferencing software to measure crater radius and estimating amounts of geological material in volume. UAS with IR sensors were used to monitor the dispersion of relative thermal energy release inside and around the active West Crater. The thermal energy release UAS survey was in cooperation with LAQAT-UNA Study of Volcanic Emissions and They´re Effects on the Local Communities.” UAS were used to try to monitor the temperature of the fumaroles individually from within the active crater. Drones were also deployed to gather videography of the degassing state observed from the aerial perspective from within the active crater of the Poás Volcano. All remote flights were completed using the SINAC Special Use UAS Research Permit – SINAC-ACC-PI-LC-037-2021.