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Impact of electrical engineering didactic videos during emergency remote learning
(Institute of Electrical and Electronics Engineers (IEEE), 2023)
Article
Open AccessThis 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
(2022-08-05)
Article
Open AccessOccasionally, 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
(2022-10-26)
Article
Open Access -
Potential use of space-based lightning detection in electric power systems
(2022-12)
Article
Open AccessInformation about lightning activity and its parameters is necessary to design and evaluate the lightning protection of an electrical power system. This information can be obtained from ground-based lightning detection ... -
Meteorological factors in the production of gigantic jets by tropical thunderstorms in Colombia
(2022-10-15)
Article
Open AccessGigantic 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, ... -
New WMO certified megaflash lightning extremes for flash distance (768 km) and duration (17.01 seconds) recorded from space
(American Meteorological Society, 2022-02-01)
Article
Open AccessInitial global extremes in lightning duration and horizontal distance were established in 2017 (Lang et al. 2017) by an international panel of atmospheric lightning scientists and engineers assembled by the WMO. The ... -
Multi-stroke positive cloud-to-ground lightning sharing the same channel observed with a VHF broadband interferometer
(2022-04-15)
Article
Open AccessIn the same lightning flash, whose usual duration is less than a second, there can be multiple negative cloud-to-ground strokes with different terminations or following a preexisting channel to the ground. In contrast, it ... -
Tropical TGF paradox: a perspective from TRMM precipitation radar
(2021-07-27)
Article
Open AccessThe 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 ... -
Lightning-ignited wildfires and long continuing current lightning in the Mediterranean Basin: Preferential meteorological conditions
(European Geosciences Union (EGU), 2021-12-02)
Article
Open AccessLightning 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 ... -
Initiation of lightning flashes simultaneously observed from space and the ground: Narrow bipolar events
(2022-04-15)
Article
Open AccessWe 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 ... -
Assessing users’ perception on the current and potential educational value of an electrical engineering YouTube channel
(Institute of Electrical and Electronics Engineers (IEEE), 2022)
Article
Open AccessFull comprehension of abstract concepts present in engineering education has been usually considered challenging. Engaging multimedia resources have proven to be useful pedagogical aids to increase students’ motivation. ... -
Optical signatures associated with streamers and leaders of laboratory discharges
(2021-10-28)
Article
Open AccessThis work investigates the strongest optical emissions associated with long laboratory sparks (at the wavelengths of 337 nm and 777 nm) with the aim to understand similar emissions in lightning. The processes of the ...
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