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Ara es mostren els items 10-29 de 92

    • Analysis of lightning associated with a sprite displaced from its parent positive cloud to ground lightning flash 

      Montañá Puig, Juan; Van der Velde, Oscar Arnoud; Soula, Serge; Neubert, Torsten; Bech, Joan; Mika, Agnes (2007)
      Comunicació de congrés
      Accés restringit per decisió de l'autor

    • Analysis of the first gigantic jet recorded over continental North America 

      Van der Velde, Oscar Arnoud; Lyons, Walter A.; Nelson, Thomas E.; Cummer, Steven A.; Li, Jingbo; Bunnell, James (2007-10-17)
      Article
      Accés obert
      [1] Two low-light cameras near Marfa, Texas, recorded a gigantic jet over northern Mexico on 13 May 2005 at approximately 0423:50 UTC. Assuming that the farthest of two candidate storm systems was its source, the bright ...

    • Analysis of the lightning production of convective cells 

      Figueras i Ventura, Jordi; Pineda Rüegg, Nicolau; Besic, Nikola; Grazioli, Jacopo; Hering, Alessandro; Van der Velde, Oscar Arnoud; Romero Durán, David; Sunjerga, A.; Mostajabi, A.; Azadifar, M.; Rubinstein, M.; Montañá Puig, Juan; Germann, Urs; Rachidi-Haeri, Farhad (2019-10-22)
      Article
      Accés obert
      This paper presents an analysis of the lightning production of convective cells. The cells were detected by the MeteoSwiss Thunderstorms Radar Tracking (TRT) algorithm in the course of a lightning measurement campaign that ...

    • Analysis of thunderstorm systems and lightning activity associated with sprites 

      Soula, Serge; Van der Velde, Oscar Arnoud; Montañá Puig, Juan (2006)
      Comunicació de congrés
      Accés restringit per decisió de l'autor

    • Analysis of thunderstorms and lightning activity associated with sprites observed during the Eurosprite campaigns: two case studies 

      Soula, Serge; Van der Velde, Oscar Arnoud; Montañá Puig, Juan; Mika, Agnes; Haldoupis, Christos; Neubert, Torsten; Ganot, Michael; Labbouz, Laurent (2007)
      Comunicació de congrés
      Accés restringit per decisió de l'autor

    • Automated analysis and statistics of lightning leader speed, local flash rates and electric charge structure in thunderstorms 

      Van der Velde, Oscar Arnoud; Montanya, Joan; López Trujillo, Jesús Alberto (2018)
      Comunicació de congrés
      Accés obert
      We introduce new methods for the analysis of complex three-dimensional lightning data produced by Lightning Mapping Arrays and illustrate them by cases of a mid-latitude severe weather producing thunderstorm and a tropical ...

    • 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, Glòria; 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 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)
      Comunicació de congrés
      Accés restringit per decisió de l'autor
      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
      Accés restringit per política de l'editorial
      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 flashes generating dancing sprites above thunderstorms 

      Soula, Serge; Mlynarczyk, Janusz; Fullekrug, Martin; Georgis, Jean-Francois; Pineda Rüegg, Nicolau; Van der Velde, Oscar Arnoud; Montañá Puig, Juan; Fabró Tàpia, Ferran (2017)
      Comunicació de congrés
      Accés obert
      During the night of October 29-30, 2013, a low-light video camera at Pic du Midi (2877 m) in the French Pyrénées, recorded TLEs above a very active storm over the Mediterranean Sea. The minimum cloud top temperature reached ...

    • Characteristics of lightning flashes generating sprites above storms (i-DUST) 

      Soula, Serge; Van der Velde, Oscar Arnoud; Montañá Puig, Juan; Fullekrug, Martin; Mezentsev, Andrew; Mlynarczyk, Janusz (EDP Sciences, 2016)
      Text en actes de congrés
      Accés obert
      Sprites are Transient Luminous Events (TLEs) that can extend vertically from 40 to 90 km and horizontally over several tens of km to form clusters of individual or multiple column or/and carrot-shaped luminous elements. ...

    • Characteristics of lightning related to wildfire ignitions in Catalonia 

      Pineda Rüegg, 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

    • Charge structure of two tropical thunderstorms in Colombia 

      López Trujillo, Jesús Alberto; Montañá Puig, Juan; Van der Velde, Oscar Arnoud; Pineda Rüegg, Nicolau; Salvador Yuste, Albert; Romero Durán, David; Aranguren Fino, Harby Daniel; Taborda, John (2019-04-23)
      Article
      Accés obert
      Charge structure derived from lightning leader development of tropical thunderstorms comprising equatorial latitudes of < ±10° has not been investigated yet. In this work, using a Lightning Mapping Array (LMA) installed ...

    • Climatology of transient luminous events and lightning observed above Europe and the Mediterranean Sea 

      Arnone, E.; Bór, József; Chanrion, Olivier; Van der Velde, Oscar Arnoud (2019-11-04)
      Article
      Accés obert
      In 1999, the first sprites were observed above European thunderstorms using sensitive cameras. Since then, Eurosprite campaigns have been conducted to observe sprites and other transient luminous events (TLEs), expanding ...

    • Comparison between high-speed video recordings of lightning and the detections of the Catalan Lightning Location Network (XDDE) 

      Montañá Puig, Juan; Pineda Rüegg, Nicolau; Solà de las Fuentes, Glòria; 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 ...

    • Comparison of high-speed optical observations of a lightning flash from space and the ground 

      Van der Velde, Oscar Arnoud; Montañá Puig, Juan; Neubert, Torsten; Chanrion, Olivier; Ostgaard, N.; López Trujillo, Jesús Alberto; Fabró Tàpia, Ferran; Reglero Velasco, Victor (2020-10)
      Article
      Accés obert
      We analyze a nighttime negative cloud-to-ground lightning flash in Colombia observed from the ground with a high-speed camera at 5,000 images per second and from space by the Atmosphere-Space Interactions Monitor (ASIM) ...

    • Dancing sprites: detailed analysis of two case studies 

      Soula, Serge; Mlynarczyk, Janusz; Fullekrug, Martin; Pineda Rüegg, Nicolau; Georgis, Jean-Francois; Van der Velde, Oscar Arnoud; Montañá Puig, Juan; Fabró Tàpia, Ferran (2017-03-27)
      Article
      Accés obert
      On 29–30 October 2013, a low-light video camera installed at Pic du Midi (2877¿m), recorded transient luminous events above a very active storm over the Mediterranean Sea. The minimum cloud top temperature reached -73°C, ...

    • 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
      Accés restringit per decisió de l'autor

    • El delta de l’Ebre: mirador privilegiat per a l’observació de llamps i d’altres fenòmens elèctrics 

      Pineda Rüegg, 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 ...