A5081594303- Atmospheric and Environmental Gas Dynamics
- Atmospheric Ozone and Climate
- Atmospheric chemistry and aerosols
- Atmospheric aerosols and clouds
- Geological and Geochemical Analysis
- earthquake and tectonic studies
- Geological and Tectonic Studies in Latin America
- Vehicle emissions and performance
- High-pressure geophysics and materials
- Maritime Transport Emissions and Efficiency
- CO2 Sequestration and Geologic Interactions
- Ionosphere and magnetosphere dynamics
- Spectroscopy and Laser Applications
- Geophysics and Gravity Measurements
- Air Quality Monitoring and Forecasting
- Methane Hydrates and Related Phenomena
- Reservoir Engineering and Simulation Methods
- Air Quality and Health Impacts
- UAV Applications and Optimization
- Earthquake Detection and Analysis
- Geochemistry and Geologic Mapping
- Calibration and Measurement Techniques
- Chalcogenide Semiconductor Thin Films
- Marine and environmental studies
- Seismic Waves and Analysis
Chalmers University of Technology
2011-2023
Universidad Autónoma de Madrid
2016
University of El Salvador
2010
Abstract Eruptive activity at Turrialba Volcano (Costa Rica) has escalated significantly since 2014, causing airport and school closures in the capital city of San José. Whether or not new magma is involved current unrest seems probable but remains a matter debate as ash deposits are dominated by hydrothermal material. Here we use high‐frequency gas monitoring to track behavior volcano between 2014 2015 decipher magmatic versus contributions eruptions. Pulses deeply derived CO 2 ‐rich (CO /S...
The 2014–2015 Bárðarbunga fissure eruption at Holuhraun in central Iceland was distinguished by the high emission of gases, total 9.6 Mt SO2, with almost no tephra. This work collates all ground-based measurements this extraordinary cloud made under particularly challenging conditions: remote location, optically dense SO2 column amounts, low UV intensity, frequent clouds and precipitation, an extensive hot lava field, developing ramparts, high-latitude winter conditions. Semi-continuous flux...
Abstract. Volcanic plumes are common and far-reaching manifestations of volcanic activity during between eruptions. Observations the rate emission composition essential to recognize and, in some cases, predict state activity. Measurements size location important assess impact from sporadic or localized events persistent widespread processes climatic environmental importance. These observations provide information on volatile budgets Earth, chemical evolution magmas, atmospheric circulation...
Obtaining accurate estimates of the CO2 output from arc volcanism requires a precise understanding potential along-arc variations in volcanic gas chemistry, and ultimately magmatic signature each individual segment. In an attempt to more fully constrain Central America Volcanic Arc (CAVA), we present here results survey performed during March April 2013 at five degassing volcanoes within Costa Rica–Nicaragua segment (CNVS). Observations plume made with multicomponent analyzer system...
Abstract. A multi-rotor drone has been adapted for studies of volcanic gas plumes. This adaptation includes improved capacity high-altitude and long-range, real-time SO2 concentration monitoring, long-range manual control, remotely activated bag sampling plume speed measurement capability. The is capable acting as a stable platform various instrument configurations, including multi-component analysis system (MultiGAS) instruments in situ measurements SO2, H2S, CO2 concentrations the portable...
Abstract. Volcanic ash constitutes a risk to aviation, mainly due its ability cause jet engines fail. Other risks include the possibility of abrasion windshields and potentially serious damage avionic systems. These hazards have been widely recognized since early 1980s, when volcanic provoked several incidents engine failure in commercial aircraft. In addition ash, gases also pose threat. Prolonged and/or cumulative exposure sulphur dioxide (SO2) or sulphuric acid (H2SO4) aerosols affects...
Abstract. Volcanic gas emissions play a crucial role in describing geophysical processes; hence, measurements of magmatic gases such as SO2 can be used tracers prior to and during volcanic crises. Different measurement techniques based on optical spectroscopy have provided valuable information when assessing This paper describes the design implementation network spectroscopic instruments differential absorption (DOAS) for remote sensing emissions, which is robust, portable deployed...
Abstract. A multi-copter drone has been adapted for studies of volcanic gas plumes. This adaptation includes improved capacity high altitude and long range, real-time SO2 concentration monitoring, range manual control, remotely-activated bag sampling, plume speed measurement capability. The is capable acting as a stable platform various instrument configurations including: MultiGAS instruments in-situ measurements SO2, H2S, CO2 H2O concentrations in the plume, MobileDOAS spectroscopic total...
Abstract. Volcanic ash constitutes a risk to aviation, mainly due its ability cause jet engines fail. Other risks include the possibility of abrasion windshields and potentially serious damage avionic systems. These hazards have been widely recognized since early 1980s, when volcanic provoked several incidents engine failure in commercial aircraft. In addition ash, gases also pose threat. Prolonged and/or cumulative exposure sulphur dioxide (SO2) or sulphuric acid (H2SO4) aerosols affects...
Abstract. Volcanic gas emissions play a crucial role in describing geophysical processes; hence measurements of magmatic gases such as SO2 can be used tracers prior and during volcanic crises. Different measurement techniques based on optical spectroscopy have provided valuable information when assessing This paper describes the design implementation network spectroscopic instruments Differential Optical Absorption Spectroscopy (DOAS) for remote sensing emissions, which is robust, portable...