LRG - Lightning Research Group
La recerca del nostre grup és en l'Electricitat Atmosfèrica i especialment en el fenomen del llamp. A la recerca bàsica treballem en: l'estudi de la física del fenomen del llamp; els esdeveniments lluminosos a l'alta atmosfera TLE; les emissions terrestres d'alta energia TGF; les emissions d’altes energies en llamps i descàrregues elèctriques; l'activitat de llamps en tempestes severes; i els camps electromagnètics produïts per llamps. També realitzem recerca aplicada en: la protecció contra el llamp d’aerogeneradors i avions; sistemes de seguiment i avís de tempestes; assaigs d'alta tensió al laboratori; etc. Bona part de la recerca del grup es centra en la missió ASIM de l’ESA on hem establert el Laboratori natural de la Vall de l'Ebre amb les instal·lacions de referència a Europa com ara: la torre de mesura de llamps del Niu de l’Àliga; la xarxa de traçat de llamps 3D Lightning Mapping Array, càmeres d’alta velocitat, interferòmetres VHF, detectors d'altes energies; i altres.
La investigación de nuestro grupo se desarrolla en el ámbito de la electricidad atmosférica y especialmente sobre el fenómeno del rayo. En la investigación básica trabajamos en el estudio de la física del fenómeno del rayo; los acontecimientos luminosos en la alta atmósfera (TLE); las emisiones terrestres de alta energía (TGF);
las emisiones de altas energías en rayos y descargas eléctricas; la actividad de los rayos en tormentas severas, y los campos electromagnéticos producidos por los rayos. También realizamos investigación aplicada en la protección contra el rayo de aerogeneradores y aviones; los sistemas de seguimiento y aviso de tormentas; los ensayos de alta tensión en el laboratorio, etc. Una buena parte de la investigación del grupo se centra en la misión ASIM de la ESA, a la que contribuimos mediante el Laboratorio del Valle del Ebro, que contiene instalaciones de referencia en Europa, como la torre de medición de rayos del Niu de l’Àliga; la red de trazado de rayos 3D (lightning mapping array); cámaras de alta velocidad; interferómetros VHF;detectores de altas energías, y otros.
Our group's research tackles the field of atmospheric electricity and particularly the phenomenon of lightning. In our basic research we study the physics of lightning, transient luminous events (TLEs) in the upper atmosphere, terrestrial gamma-ray flashes (TGFs), high-energy emissions in lightning and electrical discharges, lightning activity in severe storms and electromagnetic fields produced by lightning. We also carry out applied research on lightning protection for wind turbines and aircraft, storm monitoring and warning systems, high-voltage laboratory tests, etc. Much of the Group's research focuses on the ESA's ASIM mission, to which we contribute via the Ebro Valley Laboratory’s benchmark European facilities, such as the lightning measurement tower in Niu de l’Àliga, a lightning mapping array, high-speed cameras, VHF interferometers and high energy detectors. Lightning physics and effects and atmospheric electricity processes. Lightning effects and protection on electrical systems, wind turbines and aircraft. Lightning location systems, observation and measurement of lightning parameters. Observation of mesospheric electrical discharges. High voltage test and research on the energetic processes of electrical sparks. Research on the protection of composite materials employed in aerospace and wind energy industry. Electromagnetic simulation and testing of complex structures.
Our group's research tackles the field of atmospheric electricity and particularly the phenomenon of lightning. In our basic research we study the physics of lightning, transient luminous events (TLEs) in the upper atmosphere, terrestrial gamma-ray flashes (TGFs), high-energy emissions in lightning and electrical discharges, lightning activity in severe storms and electromagnetic fields produced by lightning. We also carry out applied research on lightning protection for wind turbines and aircraft, storm monitoring and warning systems, high-voltage laboratory tests, etc. Much of the Group's research focuses on the ESA's ASIM mission, to which we contribute via the Ebro Valley Laboratory’s benchmark European facilities, such as the lightning measurement tower in Niu de l’Àliga, a lightning mapping array, high-speed cameras, VHF interferometers and high energy detectors. Lightning physics and effects and atmospheric electricity processes. Lightning effects and protection on electrical systems, wind turbines and aircraft. Lightning location systems, observation and measurement of lightning parameters. Observation of mesospheric electrical discharges. High voltage test and research on the energetic processes of electrical sparks. Research on the protection of composite materials employed in aerospace and wind energy industry. Electromagnetic simulation and testing of complex structures.
Collections
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Articles de revista [36]
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Presentacions [1]
Recent Submissions
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Análisis de un accidente del sector minero mediante el método del árbol de causas y el método de Feyer & Williamson
(2019)
Conference report
Open AccessFundamento y Métodos: En esta investigación se presenta el caso del análisis de un accidente del sector minero a través de 2 métodos distintos: 1) árbol de causas, 2) Feyer & Williamson. En el método del árbol de causas ... -
Valoración de los accidentes graves y mortales en las minas españolas entre los años 2013 y 2017
(2019-06-25)
Article
Open AccessLa industria minera es considerada como una de las industrias más peligrosas. Hay la necesidad de una gestión eficaz de la salud y de la seguridad en el trabajo para salvaguardar a los trabajadores. El objetivo de este ... -
Polarimetric radar characteristics of lightning initiation and propagating channels
(2019-05-27)
Article
Open AccessIn this paper we present an analysis of a large dataset of lightning and polarimetric weather radar data collected in the course of a lightning measurement campaign that took place in the summer of 2017 in the area surrounding ... -
On the TGF/lightning ratio asymmetry
(2019-05-14)
Article
Open AccessAfrica is one of the most productive lightning regions on Earth, yet it has a lower TGF-to-lightning ratio especially compared with Central America. In this paper we have analyzed the global distribution of different ... -
Charge structure of two tropical thunderstorms in Colombia
(2019-04-23)
Article
Open AccessCharge 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 ... -
A closer look at lightning reveals needle-like structures
(Macmillan Publishers, 2019-04-17)
Article
Restricted access - publisher's policyStructural features have been identified on positively charged lightning channels that are not present on negatively charged ones. The discovery could explain why these two types of channel have different behaviours. -
Thunderstorm characteristics favouring downward and upward lightning to wind turbines
(2018-12-01)
Article
Restricted access - publisher's policyMeteorological conditions and thunderstorm characteristics related to lightning threats to wind turbines are discussed in this paper. Due to the rotating blades, wind turbines may be regarded peculiar tall objects, more ... -
Natural observatories for lightning research in Colombia
(Institute of Electrical and Electronics Engineers (IEEE), 2018)
Conference report
Open AccessThis paper presents a selected, not exhaustive, description of lightning research in Colombia over time, based on natural observatories for experimentation and measurement; and introduces the DABEIBA Lightning Research ... -
Automated analysis and statistics of lightning leader speed, local flash rates and electric charge structure in thunderstorms
(2018)
Conference lecture
Open AccessWe 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 ... -
Evolution of gigantic jets at high temporal and spatial resolution
(2018)
Conference lecture
Open AccessGigantic 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 ... -
Meteorological aspects of winter upward lightning from an instrumented tower in the Pyrenees
(Institute of Electrical and Electronics Engineers (IEEE), 2018)
Conference report
Open AccessA case study of winter upward lightning is analysed. In particular, the study focuses on the meteorological aspects that favoured the triggering of upward lightning by an instrumented tower in the eastern Pyrenees. Starting ... -
On the classification of self-triggered versus other-triggered lightning flashes
(Institute of Electrical and Electronics Engineers (IEEE), 2018)
Conference report
Open AccessWe present in this paper lightning current measurements and LMA (Lightning Mapping Array) data associated with upward flashes observed at the Sàntis Tower during Summer 2017. The LMA network consists of six stations located ...
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