Results 41 to 50 of about 86,801,241 (192)

Spider Lightning Characterization: Integrating Optical, NLDN, and GLM Detection

Atmosphere, 2023
Here, we investigate the characteristics of spider lightning analyzing individual lightning flashes as well as the overall electric storm system. From July to November 2022, optical camera systems captured the visually spectacular spider lightning in ...
Gilbert Green, Naomi Watanabe
doaj   +1 more source

Lightning electromagnetic emission location using arrival time differencing (LEELA): An introduction to the Met Office's next generation Very Low Frequency lightning location system

Quarterly Journal of the Royal Meteorological Society, EarlyView.
This paper describes the Met Office's new lightning location system LEELA. A brief overview of the upgraded hardware and geolocation algorithms is given. LEELA has improved lightning detection capabilities, especially at night. When comparing LEELA to the previous ATDnet system against ground truths LEELA has 100% storm detection efficiency within 5 km
Graeme Marlton, Mike Protts, Stephen Prust, Edmund Keith Stone, Debbie O'Sullivan, Sue Twelves, Francesco Devoto, Claire Witham   +7 more
wiley   +1 more source

Occurrence of positive and negative polarity cloud-to-ground lightning flashes: Case study of CGR4 and GPATS data for Brisbane, Australia

, 2011
The occurrences of positive and negative polarity cloud-to-ground lightning flashes were detected by ground-based lightning flash counters CGR4 in Brisbane,Australia.
Darveniza, M., Kuleshov, Yuriy, D Mackerras, Darveniza, Mat, Mackerras, D., M Darveniza, Kuleshov, Y., Y Kuleshov, Jayaratne, Rohan, Hettrick, P., Mackerras, David, P Hettrick, E Jayaratne, Jayaratne, E. R., Hettrick, Paul   +14 more
core   +1 more source

Characterizing Pulse Attenuation of Intra-Cloud and Cloud-to-Ground Lightning with E-Field Signal Measured at Multiple Stations

Remote Sensing, 2022
In this paper, we analyze the waveform data of nearly 200,000 intra-cloud (IC) and cloud-to-ground (CG) lightning discharges detected by the Jianghuai Area Sferic Array on 26–29 August 2019 to investigate the propagation features of lightning ...
Wenwei Wang, Baoyou Zhu
doaj   +1 more source

Object‐based deep learning for probabilistic convective‐core nowcasting from satellite data

Quarterly Journal of the Royal Meteorological Society, EarlyView.
Convective cores detected from Meteosat infrared imagery are represented as compact physical objects to generate probabilistic nowcasts up to 6 h ahead. A spatio‐temporal transformer models interactions among evolving core populations and produces gridded probability forecasts across the western Sahel.
Mendrika Rakotomanga, Douglas J. Parker, Nadhir Ben Rached, Seonaid R. Anderson, Cornelia Klein, Steven C. Wells   +5 more
wiley   +1 more source

Unusual vertical oscillations of a radiosonde

Weather, EarlyView.
In summer 2023 in southern England, several unusual balloon launches were observed which descended for a few minutes before resuming ascent. This unusual vertical oscillation was repeated several times in a ‘roller‐coaster’‐like pattern. This article discusses the behaviour of the balloons.
Caleb Miller, Chun Hay Brian Lo, Stephen Burt, Ryan R. Neely III   +3 more
wiley   +1 more source

Comparison of high‐speed optical observations of a lightning flash from space and the ground [PDF]

, 2020
We analyze a nighttime negative cloud‐to‐ground lightning flash in Colombia observed from the ground with a high‐speed camera at 5000 images per second, and from space by the Atmosphere‐Space Interactions Monitor (ASIM) on the International Space Station
Van der Velde, Oscar Arnoud, Velde, Oscar A., Chanrion, Olivier, Fabró, Ferran, Nikolai Østgaard, Steven Goodman, Oscar A. van der Velde, Goodman, Steven, Montañá Puig, Juan, Ferran Fabró, López, Jesús A., Fabró Tàpia, Ferran, Torsten Neubert, Victor Reglero, Østgaard, Nikolai, López Trujillo, Jesús Alberto, Joan Montanyà, Montanyà, Joan, Olivier Chanrion, Ostgaard, N., Reglero Velasco, Victor, Jesús A. López, Reglero, Victor, Neubert, Torsten   +23 more
core   +1 more source

A Survey and Perspectives on Mathematical Models for Quantitative Precipitation Estimation Using Lightning

Advances in Meteorology, 2017
Lightning is one of the most spectacular phenomena in nature. It is produced when there is a breakdown in the resistance in the electric field between the ground and an electrically charged cloud.
Carlos Manuel Minjarez-Sosa, Julio Waissman   +1 more
doaj   +1 more source

Seasonal and Regional Distribution of Lightning Fraction Over Indian Subcontinent

Earth and Space Science, 2023
Four years of Indian Institute of Tropical Meteorology lightning location network lightning observation data are used to determine the seasonal and spatial (over different geographical locations) distribution of the ratio of intra‐cloud (IC) lightning to
Rakesh Ghosh, S. D. Pawar, Anupam Hazra, Jonathan Wilkinson, Dipjyoti Mudiar, Manoj A. Domkawale, K. Gayatri Vani, V. Gopalakrishnan   +7 more
doaj   +1 more source

How weather got its words: a history of meteorological English – Part 2: the scientific age and beyond

Weather, EarlyView.
The English language is a gargantuan, gluttonous beast. It has become extraordinary in its powers of assimilation – such that we rarely consider the origins of the words we use. In this paper, we will shed light on these origins, including the Pontic–Caspian steppe, the British Empire and, of course, a TV show.
Kieran M. R. Hunt
wiley   +1 more source