Search results for "SO2 camera"

showing 3 items of 3 documents

Intercomparison of SO2 camera systems for imaging volcanic gas plumes

2015

Abstract SO 2 camera systems are increasingly being used to image volcanic gas plumes. The ability to derive SO 2 emission rates directly from the acquired imagery at high time resolution allows volcanic process studies that incorporate other high time-resolution datasets. Though the general principles behind the SO 2 camera have remained the same for a number of years, recent advances in CCD technology and an improved understanding of the physics behind the measurements have driven a continuous evolution of the camera systems. Here we present an intercomparison of seven different SO 2 cameras. In the first part of the experiment, the various technical designs are compared and the advantage…

geographygeography.geographical_feature_categoryMeteorologyProcess (computing)Volcanic gas emissionsTime resolutionRemote sensingSpatial integrationPlumeSettore GEO/08 - Geochimica E VulcanologiaGeophysicsSO2 CameraVolcanoInstrument intercomparisonSulfur dioxideGeochemistry and PetrologyUltraviolet spectroscopyContinuous evolutionGeologyRemote sensing
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A Low-Cost Smartphone Sensor-Based UV Camera for Volcanic SO2 Emission Measurements

2017

Recently, we reported on the development of low-cost ultraviolet (UV) cameras, based on the modification of sensors designed for the smartphone market. These units are built around modified Raspberry Pi cameras (PiCams; ≈USD 25), and usable system sensitivity was demonstrated in the UVA and UVB spectral regions, of relevance to a number of application areas. Here, we report on the first deployment of PiCam devices in one such field: UV remote sensing of sulphur dioxide emissions from volcanoes; such data provide important insights into magmatic processes and are applied in hazard assessments. In particular, we report on field trials on Mt. Etna, where the utility of these devices in quantif…

volcanic gas emissionsgeographygeography.geographical_feature_category010504 meteorology & atmospheric sciencesvolcano monitoringRaspberry Pilow-cost ultraviolet camera010502 geochemistry & geophysicsUSable01 natural sciences7. Clean energyRaspberry piVolcanoApplication areassulphur dioxideGeneral Earth and Planetary SciencesEnvironmental sciencelcsh:QSO<sub>2</sub> camera; Raspberry Pi; low-cost ultraviolet camera; volcanic gas emissions; sulphur dioxide; volcano monitoringlcsh:ScienceSO2 camera0105 earth and related environmental sciencesRemote sensingRemote Sensing
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Spatially resolved SO2 flux emissions from Mt Etna

2016

Abstract We report on a systematic record of SO2 flux emissions from individual vents of Etna volcano (Sicily), which we obtained using a permanent UV camera network. Observations were carried out in summer 2014, a period encompassing two eruptive episodes of the New South East Crater (NSEC) and a fissure‐fed eruption in the upper Valle del Bove. We demonstrate that our vent‐resolved SO2 flux time series allow capturing shifts in activity from one vent to another and contribute to our understanding of Etna's shallow plumbing system structure. We find that the fissure eruption contributed ~50,000 t of SO2 or ~30% of the SO2 emitted by the volcano during the 5 July to 10 August eruptive inter…

volcanic gaseGeologicalRemote Sensing and DisastersVolcanologyVolcano SeismologyVolcano MonitoringResearch LettersVolcanic GasesVolcanic Hazards and Risksvolcanic SO2 fluxSO2 camerasResearch LetterEtnaRemote Sensing of VolcanoesInstruments and TechniquesDisaster Risk Analysis and AssessmentSO2 cameraGeophysicEarth and Planetary Sciences (all)volcanic degassingNatural HazardsSeismologySolid EarthGeophysical Research Letters
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