Volcanic plume
Observations of the altitude of the volcanic plume during the eruption of Eyjafjallajökull, April–May 2010
... the plume was monitored every 5 min with a C-band weather radar located in Keflavík International Airport, 155 km distance from the ...the plume-top altitude were constructed from the radar observations and ...
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Advective diffusion of volcanic plume captured by dense GNSS network around Sakurajima volcano: a case study of the vulcanian eruption on July 24, 2012
... the volcanic plume, which is only an increase of several tens of Kelvin (Houlié et ...the volcanic ash acting as an obstacle between the satellite and the ground ...the volcanic plume ...
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Two weather radar time series of the altitude of the volcanic plume during the May 2011 eruption of Grímsvötn, Iceland
... eruption plume reaching 20–25 km altitude. The height of the plume was monitored every 5 min with a C-band weather radar located at Keflavík International Airport and a mobile X-band radar, 257 km and 75 km ...
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Plume-SPH 1.0: a three-dimensional, dusty-gas volcanic plume model based on smoothed particle hydrodynamics
... (1-D) volcanic plume models have been developed in the past few decades, ranging from the most basic 1-D model (Woods, 1988) which only accounts for mass conservation to more recently developed 1-D mod- els ...
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Volcanic plume measurements using a UAV for the 2014 Mt Ontake eruption
... Advantages and potentials of the UAV measurements for volcanic plume observation have already been clear from previous studies (e.g., McGonigle et al. 2008; Shi- nohara 2013). In particular, application of ...
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Numerical simulation of volcanic plume dispersal from Usu volcano in Japan on 31 March 2000 using PUFF model
... for plume dispersal in the air 24 hours a day not only by the satellite images but also by the ground based and airborne TV monitoring ...of volcanic plume ...
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The impact of MISR-derived injection height initialization on wildfire and volcanic plume dispersion in the HYSPLIT model
... mine wind direction. This quantity can also be calculated di- rectly by fitting the parallax and the apparent motion of the scene self-consistently, but, in practice, user determination of wind direction reduces ...
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FPLUME-1.0: An integral volcanic plume model accounting for ash aggregation
... for volcanic plumes as a multiphase homogeneous mixture of water (in any phase), entrained air, and n particle classes, including a parameterization for the air entrainment coefficients and a wet aggregation ...
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Volcano remote sensing with ground-based spectroscopy
... The techniques described here are based upon measurements of the spectra of electromagnetic radiation that has been attenuated by passing through a volcanic plume (figure 2). Depending upon the methodology ...
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Monitoring and forecasting Etna volcanic plumes
... Timely volcanic plume observations may improve the fore- cast ...the volcanic vent, and satel- lite ...of volcanic light- ning (Mather and Harrison, 2006) and electric fields (But- ter et ...
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Remote sensing of volcanic CO 2, HF, HCl, SO2 , and BrO in the downwind plume of Mt. Etna
... the volcanic plume was horizontally extended and if our lines of sight crossed the plume perpendicularly to its propagation direction, the reported VCDs were truly representative of the vertical ...
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PLUME-MoM 1.0: A new integral model of volcanic plumes based on the method of moments
... steady-state volcanic plume model presented in Barsotti et ...the plume are expressed in terms of the transport equations for the mo- ments of the ash particle size ...
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Dental fluorosis caused by volcanic degassing in West Ambrym, Vanuatu : a thesis presented in partial fulfilment of the requirements for the degree of Master of Science in Earth Science at Massey University, Palmerston North, New Zealand
... dental fluorosis existed in West Ambrym and secondly, that it was caused by the ingestion of rainwater contaminated by the degassing volcanic plume... A dental survey was undertaken of c[r] ...
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Volcanic SO 2and SiF4 visualization using 2-D thermal emission spectroscopy – Part 1: Slant-columns and their ratios
... The volcanic plume passed just above the observation site and it was possible to take absorption spec- tra for little less than an ...the volcanic plume have the same order of magnitude, ...
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Dynamics of the plume produced by nanosecond ultraviolet laser ablation of metals
... significant sputtering of the deposit would mean that the true value of the deposition rate F(0) should have been increased relatively to what we have shown in Fig. 2. The work by Fa¨hler et al. 20 shows that the ...
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Plume propagation direction determination with SO 2cameras
... the plume can be derived directly from the camera image ...moving plume and determines the time lag between the two signals (McGonigle et ...the plume from the time lag, the angular distance between ...
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Turbulent ‘stopping plumes’ and plume pinch off in uniform surroundings
... unsteady plume in a uniform environment is presented, focusing on the experimental method and technique we ...steady plume is first created by releasing salt solution into a tank containing fresh ...The ...
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Data assimilation for plume models
... a plume defined by a temperature and velocity field ...the plume defined by the exact initial conditions from the DNS and perturb its convective heat ...
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Contemporary environmental issues of landfill leachate: Assessment and remedies
... leachate plume is an arduous but essential task necessary for measuring the extent of spread of pollution and taking management decisions regarding leachate ...leachate plume migration monitoring, such as ...
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On testing laser ablation processes for asteroid deflection
... During ablation, both samples also experienced the volumetric removal of material. This was is contraction to the expected shallow-surface layer ablation. 10 -4 g/s of material was removed. While this corresponded well ...
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