Search results for "etna"
showing 3 items of 193 documents
The impact of Mt. Etna volcanic emissions on the atmospheric deposition: developments and improvements during three decades of studies
2022
Volcanic emissions are an important source of gases and particles to the atmosphere. Mount Etna discharges a permanent volcanic plume consisting of water vapor and gaseous species (CO2, SO2, HCl and HF, mainly), metals, acid droplets, and solid particles. This plume interacts with meteoric water during precipitations events, so the chemical signature of the plume is impressed on the rainwater. Over the past 32 years, the impact of Etna's emissions on atmospheric deposition has been investigated in many research projects by our team. Sampling methodologies and analytical procedures have been improved over the years. The first study of the concentration of water-soluble inorganic ions in week…
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…
Vjetnamiešu kopiena Latvijā: akulturācijas modeļa analīze
2021
Bakalaura darba “Vjetnamiešu kopiena Latvijā: akulturācijas modeļa analīze” mērķis ir noskaidrot Latvijā esošās vjetnamiešu kopienas plānus, uzskatus un mērķus saistībā ar akulturāciju, un lai varētu izprast šīs kopienas vēlamo akulturācijas stratēģiju un piedāvāt ieteikumus priekš valsts politikas. Darbs tika izstrādāts balstoties uz zinātniskās literatūras pētniecību un autora pašizveidotās aptaujas, rezultātu apkopojumu un analīzi. Bakalaura darbu veido 3 daļas, kur tiek apskatīts akulturācijas vēsturi un stratēģijas, kā arī vjetnamiešu kopienu vēsturi citās valstīs, aptaujas izveidi un datu apkopošanu, rezultējoties ar datu analīzi un priekšlikumu izteikšanu. Neieskaitot titullapu, satu…