Exploració per autor "Folch, Arnau"
Ara es mostren els items 1-20 de 31
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11th EGU Galileo Conference: Solid Earth and Geohazards in the Exascale Era Consensual Document
Folch, Arnau; Bhihe, Cedric; Caviedes-Vouillième, Daniel; de la Puente, Josep; Esposti Ongaro, Tomaso; Monterrubio, Marisol (2023)
Working paper
Accés obertThe 11th Galileo Conference of the European Geosciences Union (EGU) focused on "Solid Earth and Geohazards in the Exascale Era." This abstract presents the main outcomes and conclusions from the conference breakout sessions, ... -
A CFD framework for offshore and onshore wind farm simulation
Avila, Matias; Gargallo-Peiró, Abel; Folch, Arnau (IOP Publishing, 2017)
Article
Accés obertWe present a wind simulation framework for offshore and onshore wind farms. The simulation framework involves an automatic hybrid high-quality mesh generation process, a pre-processing to impose initial and boundary ... -
A hybrid meshing framework adapted to the topography to simulate atmospheric boundary layer flows
Gargallo Peiró, Abel; Avila, Matias; Folch, Arnau (Elsevier, 2022)
Article
Accés restringit per política de l'editorialA new topography adapted mesh generation framework tailored to simulate Atmospheric Boundary Layer (ABL) flows on complex terrains is presented. The mesher is fully automatic given: the maximum and minimum surface mesh ... -
A Novel approach to reconstruct the plinian and co-ignimbrite phases of large eruptions - Campanian Ignimbrite
Marti, Alejandro; Folch, Arnau; Costa, Antonio; Engwell, Samantha (Barcelona Supercomputing Center, 2015-05-05)
Text en actes de congrés
Accés obertReconstructing the volume and tephra dispersal from volcanic super-eruptions is necessary to assess the widespread impact of these massive events on climate, ecosystems and humans. Recent studies have demonstrated that ... -
A Parallel CFD Model for Wind Farms
Avila, Matías; Folch, Arnau; Houzeaux, Guillaume; Eguzkitza, Beatriz; Prieto, Luis; Cabezón, Daniel (Elsevier, 2013-06-01)
Article
Accés obertWe present a Computational Fluid Dynamics (CFD) modeling strategy for onshore wind farms aimed at predicting and opti- mizing the production of farms using a CFD model that includes meteorological data assimilation, complex ... -
A simplified model for bottom trawl fishing gears
Folch, Arnau; Prat Farran, Joana d'Arc; Antonijuan Rull, Josefina (2007-05-12)
Article
Accés obertComputational modeling is a valuable complementary tool to assess behavior of bottom trawl fishing gears. A simplified model of the gear that mainly affects to the net is proposed. The model is constrained to steady towing ... -
A simplified model for bottom trawl fishing gears
Folch, Arnau; Prat Farran, Joana d'Arc; Antonijuan Rull, Josefina; Sala, A.; Sardà, Francesc; Manuel Lázaro, Antonio (SARTI (Technological Development Centre of Remote Acquisition and Data processing Systems), 2008-04-08T15:55:17Z)
Article
Accés obert -
A wind field downscaling strategy based on domain segmentation and transfer functions
Barcons, Jordi; Avila, Matias; Folch, Arnau (Wiley, 2018-02-06)
Article
Accés obertThis paper presents a novel methodology for mesoscale‐to‐microscale downscaling of near‐surface wind fields. The model chain consists on the Weather Research and Forecast mesoscale model and the Alya‐CFDWind microscale ... -
Anak Krakatau triggers volcanic freezer in the upper troposphere
Prata, Andrew T.; Folch, Arnau; Brenot, Hugues; Prata, A. J.; Climarelli, Corrado; Corradini, Stefano; Lapierre, Jeff; Costa, Antonio (Nature Research, 2020-02)
Article
Accés obertVolcanic activity occurring in tropical moist atmospheres can promote deep convection and trigger volcanic thunderstorms. These phenomena, however, are rarely observed to last continuously for more than a day and so insights ... -
Beyond eruptive scenarios: assessing tephra fallout hazard from Neapolitan volcanoes
Sandri, Laura; Costa, Antonio; Selva, Jacopo; Tonini, Roberto; Macedonio, Giovanni; Folch, Arnau; Sulpizio, Roberto (Nature Publishing Group, 2016-04-12)
Article
Accés obertAssessment of volcanic hazards is necessary for risk mitigation. Typically, hazard assessment is based on one or a few, subjectively chosen representative eruptive scenarios, which use a specific combination of eruptive ... -
Data assimilation of volcanic aerosol observations using FALL3D+PDAF
Mingari, Leonardo; Folch, Arnau; Prata, Andrew T.; Pardini, Federica; Macedonio, Giovanni; Costa, Antonio (Copernicus Publications, 2022-02)
Article
Accés obertModelling atmospheric dispersal of volcanic ash and aerosols is becoming increasingly valuable for assessing the potential impacts of explosive volcanic eruptions on buildings, air quality, and aviation. Management of ... -
DISPAR: a tool to model bottom trawl fishing gears
Antonijuan Rull, Josefina; Prat Farran, Joana d'Arc; Folch, Arnau; Gualdo Sesma, Olga; Sardà, Francesc; Manuel Lázaro, Antonio (SARTI (Technological Development Centre of Remote Acquisition and Data processing Systems), 2008-04-08T16:01:20Z)
Article
Accés obert -
Diurnal cycle RANS simulations applied to wind resource assessment
Barcons, Jordi; Avila, Matias; Folch, Arnau (Wiley, 2019-02)
Article
Accés obertMicroscale computational fluid dynamics (CFD) models can be used for wind resource assessment on complex terrains. These models generally assume neutral atmospheric stratification, an assumption that can lead to inaccurate ... -
Ensemble-based forecast of volcanic clouds using FALL3D-8.1
Folch, Arnau; Mingari, Leonardo; Prata, Andrew T. (Frontiers Media, 2022-01)
Article
Accés obertOperational forecasting of volcanic ash and SO<sub>2</sub> clouds is challenging due to the large uncertainties that typically exist on the eruption source term and the mass removal mechanisms occurring downwind. Current ... -
FALL3D-8.0: a computational model for atmospheric transport and deposition of particles, aerosols and radionuclides – Part 2: Model validation
Prata, Andrew T.; Mingari, Leonardo; Folch, Arnau; Macedonio, Giovanni; Costa, Antonio (Copernicus Publications, 2021-01)
Article
Accés obertThis paper presents model validation results for the latest version release of the FALL3D atmospheric transport model. The code has been redesigned from scratch to incorporate different categories of species and to overcome ... -
FPLUME-1.0: An integral volcanic plume model accounting for ash aggregation
Folch, Arnau; Costa, Antonio; Macedonio, Giovannin (EGU Journals, 2016-02-02)
Article
Accés obertEruption source parameters (ESP) characterizing volcanic eruption plumes are crucial inputs for atmospheric tephra dispersal models, used for hazard assessment and risk mitigation. We present FPLUME-1.0, a steady-state 1-D ... -
Long-term hazard assessment of explosive eruptions at Jan Mayen (Norway) and implications for air traffic in the North Atlantic
Titos, Manuel; Martínez Montesinos, Beatriz; Barsotti, Sara; Sandri, Laura; Folch, Arnau; Mingari, Leonardo; Macedonio, Giovanni; Costa, Antonio (Copernicus Publications, 2022-01)
Article
Accés obertVolcanic eruptions are among the most jeopardizing natural events due to their potential impacts on life, assets, and the environment. In particular, atmospheric dispersal of volcanic tephra and aerosols during explosive ... -
Mesh generation, sizing and convergence for onshore and offshore wind farm Atmospheric Boundary Layer flow simulation with actuator discs
Gargallo Peiró, Abel; Avila, Matias; Owen, Herbert; Prieto-Godino, Luis; Folch, Arnau (Elsevier, 2018-12)
Article
Accés obertA new mesh generation process for wind farm modeling is presented together with a mesh convergence and sizing analysis for wind farm flow simulations. The generated meshes are tailored to simulate Atmospheric Boundary Layer ... -
Model validation and data insertion with FALL3D-8.0: exploiting geostationary satellite retrievals of volcanic ash and SO2
Prata, Andrew; Mingari, Leonardo; Folch, Arnau (Barcelona Supercomputing Center, 2020-05)
Text en actes de congrés
Accés obertThe new version of FALL3D has recently been released with several new features and improvements in model physics, solving algorithms, code accuracy and performance [1]. Among the new features are a data insertion scheme ... -
Multimodal deep learning methods for person annotation in video sequences
Folch, Arnau (Universitat Politècnica de Catalunya, 2018-10)
Treball Final de Grau
Accés obertThe purpose of this project is to focus in exploring deep learning methods for multimodal person recognition in video sequences. The project will be carried out in the context of unsupervised person annotation systems for ...