Search results for "ESOL"
showing 10 items of 2444 documents
Frequency Based Detection and Monitoring of Small Scale Explosive Activity by Comparing Satellite and Ground Based Infrared Observations at Stromboli…
2014
Abstract Thermal activity is a common precursor to explosive volcanic activity. The ability to use these thermal precursors to monitor the volcano and obtain early warning about upcoming activity is beneficial for both human safety and infrastructure security. By using a very reliably active volcano, Stromboli Volcano in Italy, a method has been developed and tested to look at changes in the frequency of small scale explosive activity and how this activity changes prior to larger, ash producing explosive events. Thermal camera footage was used to designate parameters for typical explosions at Stromboli (size of spatter field, cooling rate, frequency of explosions) and this information was a…
UV camera measurements of fumarole field degassing (La Fossa crater, Vulcano Island)
2011
Abstract The UV camera is becoming an important new tool in the armory of volcano geochemists to derive high time resolution SO2 flux measurements. Furthermore, the high camera spatial resolution is particularly useful for exploring multiple-source SO2 gas emissions, for instance the composite fumarolic systems topping most quiescent volcanoes. Here, we report on the first SO2 flux measurements from individual fumaroles of the fumarolic field of La Fossa crater (Vulcano Island, Aeolian Island), which we performed using a UV camera in two field campaigns: in November 12, 2009 and February 4, 2010. We derived ~ 0.5 Hz SO2 flux time-series finding fluxes from individual fumaroles, ranging from…
Radiative heat power at Stromboli volcano during 2000–2011: Twelve years of MODIS observations
2012
Abstract Twelve years of night-time MODIS (Moderate Resolution Imaging Spectroradiometer) observations, has been analysed to detect and quantify the radiative heat power emitted by Stromboli volcano (from March 2000 to September 2011). Using an accurate background subtraction of the MODIS signal at 4 μm, we were able to discriminate two main regimes of thermal radiation, related to different levels of volcanic activity. Effusive eruptions (occurred on December 28, 2002 and February 27, 2007) radiated at an average of ~ 186 MW with a frequency of alert detection of 50–95%. Conversely, during the typical strombolian activity, an average of ~ 9 MW is radiated, with a frequency of alert detecti…
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…
Timing the Mesolithic-Neolithic Transition in the Iberian Peninsula: The Radiocarbon Dataset
2019
In this paper, we describe the radiocarbon dataset compiled in the context of the project HAR2015-68962 EVOLPAST: Dinamicas evolutivas y patrones de variabilidad cultural de los ultimos cazadores-recolectores y el primer Neolitico en el este peninsular (7000–4500 cal. BC) funded by the Spanish government. The dataset offers the most complete and public radiocarbon dataset focus on the Neolithic Transition in the Iberian Peninsula. Funding statement: The data collection was funded by the Spanish Ministry of Economy, Industry and Competitiveness grant HAR2015-68962-P to Oreto Garcia Puchol & Joan Bernabeu. SPG is supported by Spanish Ministry of Economy, Industry and Competitiveness, Postdoct…
Directionlets: Anisotropic Multidirectional representation with separable filtering
2006
In spite of the success of the standard wavelet transform (WT) in image processing in recent years, the efficiency of its representation is limited by the spatial isotropy of its basis functions built in the horizontal and vertical directions. One-dimensional (1-D) discontinuities in images (edges and contours) that are very important elements in visual perception, intersect too many wavelet basis functions and lead to a nonsparse representation. To efficiently capture these anisotropic geometrical structures characterized by many more than the horizontal and vertical directions, a more complex multidirectional (M-DIR) and anisotropic transform is required. We present a new lattice-based pe…
G-CLASS: geosynchronous radar for water cycle science – orbit selection and system design
2019
The mission geosynchronous – continental land atmosphere sensing system (G-CLASS) is designed to study thediurnal water cycle, using geosynchronous radar. Although the water cycle is vital to human society, processes on timescalesless than a day are very poorly observed from space. G-CLASS, using C-band geosynchronous radar, could transform this. Itsscience objectives address intense storms and high resolution weather prediction, and significant diurnal processes such assnow melt and soil moisture change, with societal impacts including agriculture, water resource management, flooding, andlandslides. Secondary objectives relate to ground motion observations for earthquake, volcano, and subs…
Mediación policial: Diseño curricular, formación y buenas prácticas en métodos alternativos de resolución de conflictos y gestión emocional
2022
En los últimos tiempos se ha vertido mucha tinta tratando de dar una explicación coherente a la novedosa aparición de la denominada “Mediación Policial” dentro de los denominados métodos adecuados de resolución de conflictos (MARC o ADR en sus siglas en inglés). Este mecanismo está ganando protagonismo en el debate doctrinal y abriéndose camino en la práctica como herramienta capaz de canalizar el potencial transformador de la Justicia restaurativa y de la paz social. En esencia subyace la necesidad de que, en el marco de un Estado Social y democrático de Derecho, las Fuerzas y Cuerpos de Seguridad (FFCCSS) generen confianza en la ciudadanía y obtengan legitimidad para su acción, buscando e…
Il diritto ad una buona amministrazione e gli strumenti alternativi di risoluzione delle controversie
2019
Attraverso il prisma della giurisprudenza della Corte di Giustizia, il saggio è volto a verificare se gli strumenti disciplinati nell'ordinamento interno che realizzano forme alternative di risoluzione delle controversie (reclamo, mediazione, accertamento con adesione e conciliazione giudiziale) costituiscono altrettanti strumenti di possibile declinazione del diritto di partecipazione e, più in generale, del diritto ad una buona amministrazione. Trough the case law of the Court of Justice, the study verifies whether domestic institutions that are alternative dispute resolution remedies (complaint, mediation, tax assessment agreement, judicial conciliation settlement) realize the right to p…