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  • Small-scale experimental simulation of lightning using vertical wires deployed by drones in the atmosphere: on the land and sea lightning peak current asymmetry 

    Montañá Puig, Juan; Fontanes Molina, Pol; Sousa Arcanjo, Marcelo Augusto; Urbani, Michele; Williams, Earle Rolfe; Romero Durán, David; Horta Bernús, Ricard; López Trujillo, Jesús Alberto; Van der Velde, Oscar Arnoud; Pineda, Nicolau; Ortiz Capilla, Esther (Elsevier, 2024-06-01)
    Article
    Restricted access - publisher's policy
    Several works have shown a land/ocean asymmetry in the intensity of lightning. Intense lightning flashes are found to occur over the ocean. One of the factors determining this asymmetry could be the relaxation time constant ...

  • Investigation of GLM detections of negative continuing currents observed by high-speed video and narrow-band 777 nm photometer 

    Roncancio Guzmán, José Andrés; Montanya Puig, Joan; López Trujillo, Jesús Alberto; Urbani, Michele; Van der Velde, Oscar Arnoud (Elsevier, 2025-02)
    Article
    Open Access
    Lightning flashes with continuing currents are characterized by high energy transfer to ground that produces severe damage to electric power systems. Novel space-based optical lightning detection systems offer new possibilities ...

  • Evidence of a new population of weak terrestrial gamma-ray flashes observed from aircraft altitude 

    Bjørge-Engeland, Ingrid; Østgaard, Nikolai; Stephan Sarria, David Alexandre; Marisaldi, Martino; Mezentsev, Andrew; Fuglestad, Anders; Lehtinen, Nikolai; Grove, J. Eric; Shy, Daniel; Lang, Timothy J.; Quick, Mason; Christian, Hugh J.; Van der Velde, Oscar Arnoud (2024-09-16)
    Article
    Open Access
    Terrestrial Gamma-ray Flashes (TGFs) are ten-to-hundreds of microsecond bursts of gamma-rays produced when electrons in strong electric fields in thunderclouds are accelerated to relativistic energies. Space instruments ...

  • Ground-based observations of 337 nm and 777 nm optical emissions produced by lightning 

    Roncancio Guzmán, José Andrés; Montañá Puig, Juan; López Trujillo, Jesús Alberto; Urbani, Michele; Van der Velde, Oscar Arnoud; Sousa Arcanjo, Marcelo Augusto (John Wiley & sons, 2024-05-11)
    Article
    Open Access
    Lightning flashes were observed in Barrancabermeja (Colombia) by two photometers centered at 337 and 777 nm wavelengths, a high-speed camera, and the Colombia Lightning Mapping Array. Both optical and VHF radio emissions ...

  • Recurrent lightning spots: where lightning strikes more than twice 

    Solà de las Fuentes, Glòria; López Trujillo, Jesús Alberto; Montañá Puig, Juan; Pineda Rüegg, Nicolau; Williams, Earle Rolfe (John Wiley & sons, 2024-03-16)
    Article
    Open Access
    The expression “lightning never strikes twice” is questioned in this paper because, among the randomness of lightning impacts, some spots are hit even more than twice year after year. This article introduces the recurrent ...

  • High production of gigantic jets by a thunderstorm over Indian Ocean 

    Soula, Serge; Mlynarczyk, Janusz; Van der Velde, Oscar Arnoud; Montanya Puig, Joan; Leclerc, Emmanuel (John Wiley & sons, 2023-11-16)
    Article
    Open Access
    Thirteen gigantic jets (GJ) were observed on 12 February 2020, with a sensitive video camera located at Maïdo Observatory, La Réunion Island in Indian Ocean. They were produced within 68 min by nearby cells embedded in a ...

  • Análisis de estructuras de carga de dos tormentas eléctricas registradas por lared Lightning Mapping Array en el Magdalena Medio colombiano 

    Ardila Murillo, Brandon Steven; Soto Ríos, Edison Andrés; Argüello Barbosa, Didier; Tello Rodríguez, Heribert; López Trujillo, Jesús Alberto; Montañá Puig, Juan (2022-05-01)
    Article
    Open Access
    A partir de la ubicación de la red Lightning Mapping Array LMA en límites de los municipios de Barrancabermeja y Yondó en 2018, se han tomado datos ininterrumpidos de descargas IC y CG que ocurren sobre esta zona de estudio. ...

  • Spectroscopy of a mesospheric ghost reveals iron emissions 

    Passas, Maria; Van der Velde, Oscar Arnoud; Gordillo Vázquez, Francisco; Gómez-Martín, Juan Carlos; Sánchez, Justo; Pérez Invernón, Francisco José; Sánchez-Ramírez, Rubén; García Comas, Maia; Montañá Puig, Juan (2023-12-12)
    Article
    Open Access
    Mesospheric Green emissions from excited Oxygen in Sprite Tops (ghosts) are infrequent and faint greenish transient luminous events that remain for hundreds of milliseconds on top of certain energetic sprites. The main ...

  • Lightning-produced nitrogen oxides per flash length obtained by using TROPOMI observations and the Ebro lightning mapping array 

    Pérez Invernón, Francisco José; Gordillo Vázquez, Francisco; Van der Velde, Oscar Arnoud; Montañá Puig, Juan; Pineda Rüegg, Nicolau; López Trujillo, Jesús Alberto; Huntrieser, Heidi; Valks, Pieter; Loyola, Diego; Sero, Sora; Erbertseder, Thilo (2023-12-28)
    Article
    Open Access
    Lightning is one of the main sources of NOx in the Earth's atmosphere. However, there is a large variability in NOx production during the lifetime of thunderstorms. In this study, we used the TROPOspheric Monitoring ...

  • Impact of electrical engineering didactic videos during emergency remote learning 

    Lijo, Ruben; Quevedo, Eduardo; Castro, Jose Juan; Horta Bernús, Ricard (Institute of Electrical and Electronics Engineers (IEEE), 2023)
    Article
    Open Access
    This article demonstrates that didactic videos have the potential to enhance quality perception, performance and interest in engineering education. Emergency Remote Learning (ERL) imposed challenging conditions on education, ...

  • Upward propagation of gigantic jets revealed by 3D radio and optical mapping 

    Boggs, Levi D.; Mach, Doug; Bruning, Eric; Liu, Ningyu; Van der Velde, Oscar Arnoud; Montanya Puig, Joan; Cummer, Steven A.; Palivec, Kevin; Chmielewski, Vanna; MacGorman, Donald R.; Peterson, Michael J. (2022-08-05)
    Article
    Open Access
    Occasionally, lightning will exit the top of a thunderstorm and connect to the lower edge of space, forming a gigantic jet. Here, we report on observations of a negative gigantic jet that transferred an extraordinary amount ...

  • Estudio de la accidentabilidad de la minería española en el período 2010-2019 

    Sanmiquel Pera, Lluís; Bascompta Massanes, Marc; Freijo Álvarez, Modesto; Vintró Sánchez, Carla; Felipe Blanch, José Juan de (2022-10-26)
    Article
    Open Access

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