Articles de revista: Recent submissions
Now showing items 1-12 of 55
-
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 ... -
A simultaneous observation of lightning by ASIM, Colombia-Lightning Mapping Array, GLM, and ISS-LIS
(2021-02-17)
Article
Open AccessThe 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 ... -
Thunderstorm charge structures favouring cloud-to-ground lightning
(2021-08)
Article
Restricted access - publisher's policyThunderstorm electrical structures favouring cloud-to-ground lightning were investigated through a Lightning Mapping Array (LMA), an accurate three-dimensional lightning location system that allows inferring the heights ... -
High-energy radiation from natural lightning observed in coincidence with a VHF broadband interferometer
(2021-04-16)
Article
Open AccessThis 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 ... -
Comparison of high-speed optical observations of a lightning flash from space and the ground
(2020-10)
Article
Open AccessWe 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) ... -
Seasonal variations on the conditions required for the lightning production
(2020-10-01)
Article
Restricted access - publisher's policyGiven the growing concern on lightning threats outside the main warm-season, the objective of this study is to get further insight on the seasonal variations of the necessary conditions required for the production of ...