Browsing by Author "López Trujillo, Jesús Alberto"Més informació

Now showing items 1-20 of 33

    • A simultaneous observation of lightning by ASIM, Colombia-Lightning Mapping Array, GLM, and ISS-LIS 

      Montañá Puig, Juan; López Trujillo, Jesús Alberto; Morales Rodríguez, Carlos Augusto; Van der Velde, Oscar Arnoud; Fabró Tàpia, Ferran; Pineda, Nicolau; Navarro González, Javier; Reglero, Víctor; Neubert, Torsten; Chanrion, Olivier; Goodman, Steven J.; Østgaard, Nikolai; Ladino Rincón, Alfonso; Romero Durán, David; Solà de las Fuentes, Glòria; Horta Bernús, Ricard; Freijo Álvarez, Modesto (2021-02-17)
      Article
      Open Access
      The Atmosphere-Space Interactions Monitor (ASIM) on the International Space Station (ISS) provides optical radiances and images of lightning flashes in several spectral bands. This work presents a lightning flash simultaneously ...

    • 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. ...

    • 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)
      Conference lecture
      Open Access
      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 ...

    • 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
      Open Access
      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 ...

    • 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
      Open Access
      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) ...

    • Evolution of gigantic jets at high temporal and spatial resolution 

      Van der Velde, Oscar Arnoud; Montanya, Joan; López Trujillo, Jesús Alberto (2018)
      Conference lecture
      Open Access
      Gigantic Jets (GJ) are lightning discharges between the cloud and the lower ionosphere, which manifest as leaders at low altitude and transition to streamers as they rise in altitude. The evolution has never been imaged ...

    • Fair weather induced charges and currents on tall wind turbines and experiments with kites 

      López Trujillo, Jesús Alberto; Montañá Puig, Juan; Van der Velde, Oscar Arnoud; Fabró Tàpia, Ferran; Romero Durán, David (Zakon Group, 2016)
      Conference report
      Open Access
      Earth’s atmospheric potential rapidly increases up to few tens of kilovolts below 200 m altitude. This potential drop will induce charge to tall objects at ground by virtue of electrostatic induction. In this work we ...

    • First data of the Colombia Lightning Mapping Array - COLMA 

      López Trujillo, Jesús Alberto; Montañá Puig, Juan; Van der Velde, Oscar Arnoud; Romero Durán, David; Aranguren Fino, Harby Daniel; Torres Sanchez, Horacio; Taborda, John; Martínez, Joaquin (Zakon Group, 2016)
      Conference report
      Open Access
      The first data set of VHF lightning mapping using a Lightning Mapping Array system - LMA in a tropical region is presented in this paper. Six sensors were installed at the north of Colombia near Santa Marta city. Since ...

    • Gigantic jet discharges evolve stepwise through the middle atmosphere 

      Van der Velde, Oscar Arnoud; Montanya, Joan; López Trujillo, Jesús Alberto; Cummer, Steven A. (2019-09-25)
      Article
      Open Access
      In 2002 it was discovered that a lightning discharge can rise out of the top of tropical thunderstorms and branch out spectacularly to the base of the ionosphere at 90¿km altitude. Several dozens of such gigantic jets have ...

    • 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 ...

    • High altitude leaders mapped by the Colombia lightning mapping array 

      Montañá Puig, Juan; López Trujillo, Jesús Alberto; Van der Velde, Oscar Arnoud; Romero Durán, David; Fabró Tàpia, Ferran (2016)
      Conference report
      Open Access
      On April 2015 a Lightning Mapping Array network (COL-LMA) was installed at the north of Colombia. This network provides 3D mapping of the development of lightning leaders. For the first time such network has been setup in ...

    • High-energy radiation from natural lightning observed in coincidence with a VHF broadband interferometer 

      Urbani, Michele; Montañá Puig, Juan; Van der Velde, Oscar Arnoud; López Trujillo, Jesús Alberto; Sousa Arcanjo, Marcelo Augusto; Fontanes Molina, Pol; Romero Durán, David; Roncancio Guzmán, José Andrés (2021-04-16)
      Article
      Open Access
      This work presents the first simultaneous X-ray measurements from natural lightning in coincidence with a very high frequency (VHF) broadband interferometer. During an observational campaign in north-central Colombia, five ...

    • Highly dynamic gamma-ray emissions are common in tropical thunderclouds 

      Marisaldi, Martino; Østgaard, Nikolai; Mezentsev, Andrew; Lang, Timothy J.; Grove, J. Eric; Shy, Daniel; Heymsfield, Gerald M.; Krehbiel, P.; Thomas, R.; Stanley, Mark A.; Sarria, David; Schultz, Christopher J.; Blakeslee, Richard J.; Quick, Mason; Adams, Ian S.; Kroodsma, Rachael; Lehtinen, Nikolai; Cummer, Steven A.; Montañá Puig, Juan; Van der Velde, Oscar Arnoud; Roncancio Guzmán, José Andrés; López Trujillo, Jesús Alberto; Urbani, Michele (Macmillan Publishers, 2024-10-03)
      Article
      Open Access
      Thunderstorms emit fluxes of gamma rays known as gamma-ray glows1,2, sporadically observed by aircraft1,3,4,5,6,7, balloons8,9,10,11 and from the ground12,13,14,15,16,17,18. Observations report increased gamma-ray emissions ...

    • Imaging of 3 bright terrestrial gamma-ray flashes by the atmosphere-space interactions monitor and their parent thunderstorms 

      Van der Velde, Oscar Arnoud; Navarro González, Javier; Fabró Tapia, Ferran; Reglero, Víctor; Connell, Paul; Chanrion, Olivier; López Trujillo, Jesús Alberto; Montañá Puig, Juan; Neubert, Torsten; Østgaard, Nikolai (Springer, 2024-03-23)
      Article
      Open Access
      The Atmosphere-Space Interactions Monitor (ASIM) on the International Space Station (ISS) includes an instrument designed to geolocate Terrestrial Gamma-ray Flashes (TGF) produced by thunderstorms. It does so with a coded ...

    • Initiation of lightning flashes simultaneously observed from space and the ground: Narrow bipolar events 

      López Trujillo, Jesús Alberto; Montañá Puig, Juan; Van der Velde, Oscar Arnoud; Romero Durán, David; Gordillo Vázquez, Francisco; Pérez Invernón, Francisco José; Luque Estepa, Alejandro; Morales Rodríguez, Carlos Augusto; Neubert, Torsten; Rison, William; Krehbiel, P.; Navarro González, Javier; Østgaard, Nikolai; Reglero, Víctor (2022-04-15)
      Article
      Open Access
      We investigate the initiation of four lightning flashes detected from ground by means of the Colombia Lightning Mapping Array (Colombia-LMA) and simultaneously observed from space by the optical sensors of the Atmosphere-Space ...

    • Investigación de las estructuras eléctricas y líderes de rayos en tormentas : aportaciones a las condiciones de inicio de rayos gamma terrestres 

      López Trujillo, Jesús Alberto (Universitat Politècnica de Catalunya, 2019-06-21)
      Doctoral thesis
      Open Access
      This thesis presents a characterization of the charge structures of thunderstorms and lightning leader development, and their relationship with the emissions of terrestrial gamma ray flashes (TGFs). The results include a ...

    • 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 ...

    • 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 ...

    • Measurement of electric potential of isolated vertical conductive wires pulled by a drone under fair weather conditions 

      Montañá Puig, Juan; March Nomen, Víctor; Van der Velde, Oscar Arnoud; López Trujillo, Jesús Alberto; Romero Durán, David; Fontanes Molina, Pol; Urbani, Michele (2018)
      Conference lecture
      Restricted access - publisher's policy
      The popularization of multicopter drones opens new possibilities for investigations of the atmospheric potential. The method of directly measuring of the electric potential drop of the lower part of the atmosphere has been ...

    • 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, ...