Ara es mostren els items 1-20 de 32

  • A mediterranean nocturnal heavy rainfall and tornadic event. Part I: overview, damage survey and radar analysis 

    Van der Velde, Oscar Arnoud; Bech, Joan; Pineda Ruegg, Nicolau; Rigo, Tomeu; Aran, Montserrat; Amaró, Jésica; Gayà, M; Arús, J; Montañá Puig, Juan (2011-01-03)
    Article
    Accés restringit per política de l'editorial
    This study presents an analysis of a severe weather case that took place during the early morning of the 2nd of November 2008, when intense convective activity associated with a rapidly evolving low pressure system affected ...
  • A mediterranean nocturnal heavy rainfall and tornadic event. Part II: total lightning analysis 

    Pineda Ruegg, Nicolau; Bech, Joan; Rigo, Tomeu; Montañá Puig, Juan (2010-11-09)
    Article
    Accés restringit per política de l'editorial
    On the night from 1st to 2nd of November 2008, a multi-cell storm coming from the Mediterranean produced severe weather in the coastal area of Catalonia (NE Spain): groundlevel strong damaging wind gusts, a tornado – ...
  • A propagative model for simulations of electric fields produced by downward leaders 

    Hermoso Costa, Juan Ramón; Montañá Puig, Juan; March Nomen, Víctor; Van der Velde, Oscar Arnoud; Solà de Las Fuentes, Gloria; Romero Durán, David; Hermoso Alameda, Blas; Pineda Ruegg, Nicolau (2012-07-13)
    Article
    Accés obert
    Comparisons of simulated downward negative leaders with experimental measurements are presented in this paper. In order to simplify, the leaders are considered to progress vertically and charge distributions and leader ...
  • A study of thunderstorm characteristics using lightning and weather radar observations 

    Pineda Ruegg, Nicolau; Bech, Joan; Rigo, Tomeu; Montañá Puig, Juan (2004)
    Comunicació de congrés
    Accés restringit per decisió de l'autor
    The main objective of this study was to give insight into the temporal and spatial aspects of lightning activity during the life cycle of diverse types of thunderstorms, and to examine the possible relationships with ...
  • An observational description of a tornadic severe weather event 

    Bech, Joan; Pineda Ruegg, Nicolau; Aran, M; Amaro, J; Gayà, M; Arús, J; Montañá Puig, Juan; Van der Velde, Oscar Arnoud (2009)
    Comunicació de congrés
    Accés restringit per decisió de l'autor
    This study presents an analysis of a severe weather case study that took place during the early morning of the 2nd of November 2008, when intense convective activity associated to a rapidly evolving low pressure system ...
  • Analysis of the electric field changes due to lightning during Catalonia thunderstorms in Summer 2003 

    Montañá Puig, Juan; Bergas Jané, Joan Gabriel; Pineda Ruegg, Nicolau; Bech, Joan; Rigo, Tomeu; Illa Arnau, Àngel; Hermoso Alameda, Blas (2004)
    Comunicació de congrés
    Accés restringit per decisió de l'autor
    Electric fields related to lightning close to storms were measured in the Catalonian region (NE of Spain) in summer 2003. The aim of this campaign was the data collection to study the total electrical charge involved in ...
  • Basic lightning flash properties derived from lightning mapping array data 

    Montañá Puig, Juan; Pineda Ruegg, Nicolau; Van der Velde, Oscar Arnoud; Solà de Las Fuentes, Gloria; Argemí Ribera, Oriol; Fabró Tàpia, Ferran; Romero Durán, David; Aranguren Fino, Daniel (2016)
    Text en actes de congrés
    Accés obert
    The size and duration of lightning flashes are examined. Data from the Ebro Valley Laboratory Lightning Mapping Array is used as reference. Additional data from the VLF/LF LINET network is included. In the analysis, each ...
  • Characteristics of lightning related to wildfire ignitions in Catalonia 

    Pineda Ruegg, Nicolau; Montañá Puig, Juan; Van der Velde, Oscar Arnoud (2012-07-21)
    Article
    Accés restringit per política de l'editorial
    What are the characteristics of lightning that influence the probability that an individual stroke will ignite a wildfire? It is generally accepted that long continuing current following some return strokes is the cause ...
  • Charge structure analysis of a severe hailstorm with predominantly positive cloud-to-ground lightning 

    Pineda Ruegg, Nicolau; Rigo, Tomeu; Montañá Puig, Juan; Van der Velde, Oscar Arnoud (2016-03-10)
    Article
    Accés restringit per decisió de l'autor
  • Comparison between high-speed video recordings of lightning and the detections of the Catalan Lightning Location Network (XDDE) 

    Montañá Puig, Juan; Pineda Ruegg, Nicolau; Solà de Las Fuentes, Gloria; Van der Velde, Oscar Arnoud; Romero Durán, David; Aranguren Fino, Daniel (2010)
    Comunicació de congrés
    Accés obert
    Lightning detections of the Catalan Lightning Location Network (XDDE) are compared with high speed video recordings carried out in Spain during summer 2009. At that time the XDDE was composed by four sensors: two SAFIR 3000 ...
  • El delta de l’Ebre: mirador privilegiat per a l’observació de llamps i d’altres fenòmens elèctrics 

    Pineda Ruegg, Nicolau; Montañá Puig, Juan; Van der Velde, Oscar Arnoud; Romero Durán, David (2012-06-27)
    Article
    Accés obert
    El delta de l’Ebre presenta les característiques idònies per ser un gran laboratori a l’aire lliure per a l’observació de llamps i d’altres fenòmens elèctrics, que tenen lloc per sobre dels núvols de tempesta. Aquests ...
  • Estudi de l'episodi tornàdic nocturn amb precipitacions intenses del 2 de novembre de 2008 a Catalunya 

    Van der Velde, Oscar Arnoud; Bech, Joan; Pineda Ruegg, Nicolau; Rigo, Tomeu; Aran, Montserrat; Amaró, Jésica; Gayà, M; Arús, J; Montañá Puig, Juan (2010)
    Comunicació de congrés
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    Aquest estudi presenta una anàlisi d’un episodi de temps sever que va tenir lloc la matinada del 2 de novembre de 2008, quan la costa sud de Catalunya va estar afectada per una intensa depressió que va dur associada ...
  • Global distribution of winter lightning: a threat to wind turbines and aircraft 

    Montañá Puig, Juan; Fabró Tàpia, Ferran; Van der Velde, Oscar Arnoud; March Nomen, Víctor; Williams, Earle R.; Pineda Ruegg, Nicolau; Romero Durán, David; Solà de Las Fuentes, Gloria; Freijo Álvarez, Modesto (2016-01-01)
    Article
    Accés obert
    Lightning is one of the major threats to multi-megawatt wind turbines and a concern for modern aircraft due to the use of lightweight composite materials. Both wind turbines and aircraft can initiate lightning, and very ...
  • High-speed observations of transient luminous events and lightning (The 2008/2009 Ebro Valley campaign) 

    Montañá Puig, Juan; Van der Velde, Oscar Arnoud; Soula, Serge; Romero Durán, David; Pineda Ruegg, Nicolau; Solà de Las Fuentes, Gloria; March Nomen, Víctor (2010)
    Comunicació de congrés
    Accés restringit per decisió de l'autor
  • High-speed video of lightning and x-ray pulses during the 2009–2010 observation campaigns in northeastern Spain 

    Montañá Puig, Juan; Van der Velde, Oscar Arnoud; March Nomen, Víctor; Romero Durán, David; Solà de Las Fuentes, Gloria; Pineda Ruegg, Nicolau (2012-11-01)
    Article
    Accés restringit per política de l'editorial
    This paper summarizes results obtained by the 2009–2010 field campaigns conducted in northeastern Spain using a high speed camera, VHF interferometer, VLF lightning location system and scintillation detectors for energetic ...
  • High-speed video recordings of lightning, electric fields and high-energy detections during thunderstorms in Catalonia Spain 

    Montañá Puig, Juan; Van der Velde, Oscar Arnoud; Romero Durán, David; Pineda Ruegg, Nicolau; Betz, H.D.; March Nomen, Víctor; Solà de Las Fuentes, Gloria (2010)
    Comunicació de congrés
    Accés obert
    High-speed video recordings of natural lightning flashes show amazing details of this phenomenon. The paper summarizes the results of the 2009 measurement campaign where the combination of electric fields, total ...
  • Lightning flash properties derived from lightning mapping array data 

    Montañá Puig, Juan; Van der Velde, Oscar Arnoud; Solà de Las Fuentes, Gloria; Fabró Tàpia, Ferran; Romero Durán, David; Pineda Ruegg, Nicolau; Argemí Ribera, Oriol (2014)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    in this paper size and duration of lightning flashes are examined. Data from the Ebro Valley Laboratory Lightning Mapping Array is used as reference. Additional data from the VLF/LF LINET network and meteorological radar ...
  • Lightning Mapping Array in Ebre’s Delta: campaign 2011 results. Comparison with other LLS 

    Montañá Puig, Juan; Van der Velde, Oscar Arnoud; Pineda Ruegg, Nicolau (2012)
    Presentació
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  • Negative lightning current parameters and detection efficiency for two operational LLS in Catalonia (NE Spain) 

    March Nomen, Víctor; Montañá Puig, Juan; Pineda Ruegg, Nicolau (Institute of Electrical and Electronics Engineers (IEEE), 2014)
    Text en actes de congrés
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    Lightning current parameters derived from Lightning Location Systems (LLS) have been used in the past to assess their influence in the local performance of the Network. The paper presents an analysis of the statistical ...
  • Observation and properties of a sub-cloud bidirectional leader 

    Montañá Puig, Juan; Van der Velde, Oscar Arnoud; Williams, Earle R.; Pineda Ruegg, Nicolau; Romero Durán, David (2014)
    Text en actes de congrés
    Accés obert
    In this paper we present the evolution of a bidirectional leader which appeared in ‘virgin’ air. In the observations we did not find any delay between the onsets of the two leader ends. The positive leader end presented a ...