Now showing items 1-8 of 8

    • Corona discharges from grounded rods under high ambient electric field and lightning activity 

      Sousa Arcanjo, Marcelo Augusto; Montanya Puig, Joan; Urbani, Michele; Fontanes Molina, Pol; Lorenzo, Victor; Pons Montserrat, Enric (2021)
      Conference report
      Open Access
      We assess results of corona pulses detected under high background electric field in the laboratory and in the field in two different experimental sites. The first location is on the roof of a regular building, and the ...
    • Experiments with a tethered drone to investigate induced charges on a vertically arranged conductor during fair weather 

      Sousa Arcanjo, Marcelo Augusto; Fontanes Molina, Pol; Urbani, Michele; Montanya Puig, Joan (2021)
      Conference report
      Open Access
      To better understand the phenomena associated with electrostatic charges and potential distribution over vertical conductors, this work describes preliminary results obtained with a tethered drone that is used to lay ...
    • 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 ...
    • Lightning-ignited wildfires and long continuing current lightning in the Mediterranean Basin: Preferential meteorological conditions 

      Pérez Invernón, Francisco José; Huntrieser, Heidi; Soler López, Sergio; Gordillo Vázquez, Francisco; Pineda, Nicolau; Navarro González, Javier; Reglero, Víctor; Montanya Puig, Joan; Van der Velde, Oscar Arnoud; Koutsias, Nikos (European Geosciences Union (EGU), 2021-12-02)
      Article
      Open Access
      Lightning is the major cause of the natural ignition of wildfires worldwide and produces the largest wildfires in some regions. Lightning strokes produce about 5¿% of forest fires in the Mediterranean Basin and are one of ...
    • Measuring low-current discharges from grounded rods under high background electric fields 

      Sousa Arcanjo, Marcelo Augusto; Montanya Puig, Joan; Urbani, Michele; Lorenzo, Victor (Elsevier, 2023-04-01)
      Article
      Open Access
      This work presents the development of an inductive current sensor for measuring pulsating corona discharges observed under high background electric field. Laboratory and field experiments in different setups are used to ...
    • Meteorological factors in the production of gigantic jets by tropical thunderstorms in Colombia 

      Van der Velde, Oscar Arnoud; Montanya Puig, Joan; López Trujillo, Jesús Alberto (2022-10-15)
      Article
      Open Access
      Gigantic jets are electric discharges that on rare occasions can be seen at night shooting out of the top of tropical thunderclouds, reaching the ionosphere (90 km). Using sensitive camera systems and detection software, ...
    • Tropical TGF paradox: a perspective from TRMM precipitation radar 

      Morales Rodríguez, Carlos Augusto; Montanya Puig, Joan; Van der Velde, Oscar Arnoud; Fabró Tàpia, Ferran; López Trujillo, Jesús Alberto (2021-07-27)
      Article
      Open Access
      The Terrestrial Gamma-ray Flash (TGF) to lightning ratio, computed over the three tropical chimneys, presents a paradox: African thunderstorms produce the most lightning but yield the lowest fraction of TGFs when compared ...
    • 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 ...