Now showing items 9-28 of 33

  • Characteristics and conditions of production of TLEs observed over a maritime storm 

    Soula, Serge; Van der Velde, Oscar Arnoud; Palmiéri, J.; Chanrion, Olivier; Montañá Puig, Juan; Lefeuvre, F. (2009)
    Conference lecture
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    The coordinated European campaign of TLE observation in 2007 involved several cameras in southern France and northern Spain and lasted several months of summer, fall, and winter. Thanks to good conditions of observation ...
  • Characteristics and conditions of production of transient luminous events observed over a maritime storm 

    Lointier, G.; Lefeuvre, F.; Soula, Serge; Van der Velde, Oscar Arnoud; Palmiéri, J.; Chanrion, Olivier; Neubert, Torsten; Montañá Puig, Juan; Gangneron, F.; Meyerfeld, Y. (2010-07-08)
    Article
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    On the night of 15/16 November 2007, cameras in southern France detected 30 transient luminous events (TLEs) over a storm located in the Corsican region (France). Among these TLEs, 19 were sprites, 6 were halos, and 5 were ...
  • Characteristics of lightning related to wildfire ignitions in Catalonia 

    Pineda Ruegg, Nicolau; Montañá Puig, Juan; Van der Velde, Oscar Arnoud (2012-07-21)
    Article
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    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 ...
  • 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)
    Conference lecture
    Open Access
    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 ...
  • Des jets géants au-dessus d’un orage isolé proche de la Réunion 

    Soula, Serge; Huet, Patrice; Van der Velde, Oscar Arnoud; Montañá Puig, Juan; Barthe, Christelle; Bór, József (2012-05-01)
    Article
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  • 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
    Open Access
    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)
    Conference lecture
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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 ...
  • 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)
    Conference lecture
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  • 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
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    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)
    Conference lecture
    Open Access
    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 attachement test on a scale aircraft model as subject for educational purposes 

    Romero Durán, David; March Nomen, Víctor; Montañá Puig, Juan; Van der Velde, Oscar Arnoud (2010)
    Conference lecture
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    A new subject on lightning protection of aircraft has been developed at the Technical University of Catalonia. This elective subject is implemented according to project-based learning (PBL). In this way, during the ...
  • Lightning development associated with two negative gigantic jets 

    Rutledge, Steven A.; Lang, Timothy J.; Cohen, Morris B.; Van der Velde, Oscar Arnoud; MacGorman, Donald R.; Beasley, William; Stanley, Mark A.; Lu, Gaopeng; Cummer, Steven A.; Lyons, Walter A.; Krehbiel, Paul R.; Li, Jingbo; Rison, William; Thomas, Ronald J.; Edens, Harald E. (2011-06-21)
    Article
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    We report observations of two negative polarity gigantic jets sufficiently near very high‐frequency (VHF) lightning mapping networks that the associated lightning characteristics and charge transfer could be investigated. ...
  • 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)
    Lecture
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  • Observations of Western Mediterranean TLE: LS8000 intracloud lightning and high-speed video 

    Van der Velde, Oscar Arnoud; Montañá Puig, Juan; Romero Durán, David; Soula, Serge; Pineda Ruegg, Nicolau; Bech, Joan; Reglero, V. (2009)
    Conference lecture
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    Transient luminous events (TLE) are electrical phenomena occurring between the ionosphere and the tops of thunderstorms. First discovered in 1989, the family of TLE now consists of different members: sprites, sprite ...
  • Registration of X-rays at 2500 m altitude in association with lightning flashes and thunderstorms 

    Montañá Puig, Juan; Fabró Tàpia, Ferran; Van der Velde, Oscar Arnoud; Romero Durán, David; Solà de Las Fuentes, Gloria; Hermoso Costa, Juan Ramón; Soula, Serge; Williams, Earle; Pineda Ruegg, Nicolau (2014)
    Article
    Open Access
    Electric fields and high-energy radiation of natural lightning measured at close range from a mountaintop tower are discussed. In none of the 12 negative cloud-to-ground upward flashes were X-rays observed. Also no energetic ...
  • Relativistic electron beams above thunderclouds 

    Neubert, Torsten; Pasko, V.P.; Bennet, A. J.; Fullekrug, Martin; Roussel Dupré, Robert; Symbalisty, Eugene M. D.; Colman, J.J.; Chanrion, Olivier; Soula, Serge; Van der Velde, Oscar Arnoud; Odzimek, Anna (2011)
    Article
    Open Access
    Non-luminous relativistic electron beams above thunderclouds have been detected by the radio signals of low frequency ~ 40–400 kHz which they radiate. The electron beams occur ~ 2–9 ms after positive cloud-to-ground lightning ...
  • Study of the total lightning activity in a hailstorm 

    Montañá Puig, Juan; Soula, Serge; Pineda Ruegg, Nicolau; Van der Velde, Oscar Arnoud; Clapers, Pere; Solà de Las Fuentes, Gloria; Bech, Joan; Romero Durán, David (2007)
    Conference lecture
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    A thunderstorm which developed in North-Eastern region of Spain on 16th June, 2006 is analyzed. This thunderstorm could be severe because it produced hailstones larger than 19 mm. The cell life time was 3h 30 minutes. ...
  • Study of the total lightning activity in a hailstorm 

    Montañá Puig, Juan; Soula, Serge; Pineda, Nicolau; Van der Velde, Oscar Arnoud; Clapers, Pere; Solà de Las Fuentes, Gloria; Bech, Joan; Romero Durán, David (2009)
    Article
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    A thunderstorm that developed over northeastern Spain on 16 June 2006 is analyzed. This severe thunderstorm produced hailstones as large as 40 mm and had a lifetime of 3 h and 30 min. Radar cross-sections show strong ...
  • Temporal and spatial evolution of intracloud lightning associated ith sprite-producing positive cloud-to-ground flashes in Northeastern Spain 

    Van der Velde, Oscar Arnoud; Montañá Puig, Juan; Soula, Serge; Pineda Ruegg, Nicolau; Chanrion, Olivier (2009)
    Conference lecture
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  • Total lightning analysis of a tornadic severe weather event 

    Pineda Ruegg, Nicolau; Bech, Joan; Rigo, Tomeu; Montañá Puig, Juan; Van der Velde, Oscar Arnoud (2009)
    Conference lecture
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    This study presents an analysis of total lightning and radar data of a severe weather event that took place in the early morning of 2nd November 2008 in Catalonia (NE Spain). A general overview of the synoptic framework ...