Results 111 to 120 of about 2,027,311 (293)

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

A Deep Learning Model for Lightning Location and Peak Current Estimation from Induced Overvoltages

A novel methodology for the determination of lightning return stroke strike position and peak current using Deep Learning (DL) techniques is introduced in this contribution. The underlying concept consists in exploiting the voltage transients produced by
S. Barmada, M. Tucci, M. Nicora, R. Procopio, M. Brignone, S. Dodge, Sami Barmada, Mauro Tucci, Martino Nicora, Shayan Dodge, Massimo Brignone, Renato Procopio   +11 more
core   +1 more source

Relationships between dryline intensity, deep moist convection and regional circulation over interior southern Africa

Quarterly Journal of the Royal Meteorological Society, EarlyView.
We explore the relationship between dryline intensity, convective activity, and the regional circulation over southern Africa during summer by comparing weak and strong convective drylines with each other. We find that strong drylines result in stronger convection with up to 3.6 times more lightning strokes adjacent to the dryline than on weak dryline ...
Lynette van Schalkwyk, Ross C. Blamey, Cornelia Klein, Chris J. C. Reason   +3 more
wiley   +1 more source

Effects of Lightning Impulses on the Dielectric Properties of HDPE

, 2009
Impulse over-voltages are very common phenomena in electric power systems. Switching impulses are created by switching surges or local faults while lightning impulses are due to lightning strikes to overhead lines.
Dao, N L, Swingler, S G, Lewin, P L
core   +1 more source

Sprites identification and their spatial distributions in JEM-GLIMS nadir observations

Terrestrial, Atmospheric and Oceanic Sciences, 2017
The Global Lightning and Sprite Measurements on the Japanese Experiment Module (JEM-GLIMS) started continuous nadir observations of lightning and transient luminous events (TLEs) at the International Space Station (ISS) in November 2012 and completed the
Mitsuteru Sato, Toru Adachi, Tomoo Ushio, Takeshi Morimoto, Masayuki Kikuchi, Hiroshi Kikuchi, Makoto Suzuki, Atsushi Yamazaki, Yukihiro Takahashi, Ryohei Ishida, Yuji Sakamoto, Kazuya Yoshida, Yasuhide Hobara   +12 more
doaj   +1 more source

Do the public take action when a severe snow warning is issued?

Weather, EarlyView.
Extreme weather events pose significant risks to the population, making timely warnings essential for preparedness. The UK Met Office’s National Severe Weather Warning Service (NSWWS) has issued impact‐based alerts for over a decade, yet evaluations of their effectiveness remain limited.
Helen Dacre, Rachel McCloy, Joi Alon
wiley   +1 more source

What do we mean by ‘consistency’ in weather forecasts?

Weather, EarlyView.
Weather forecast users often require forecasts to be ‘consistent’, yet the term is used to describe several different properties of forecast behaviour. This paper proposes a framework distinguishing different forms of consistency in weather forecast products, divided into cross‐product consistency (message, forecast narrative, value‐range and exact ...
Alice Lake, Alasdair Skea
wiley   +1 more source

Close electric field changes associated with upward-initiated lightning at the Gaisberg Tower

, 2011
We examine in detail the simultaneous lightning current waveforms, close electric field changes, and lighting location system data for upward lightning discharges initiated from the Gaisberg Tower (GBT) from 2005 to 2009.
Hannes Pichler, Mair, M.,, Zhou, Helin,, Gerhard Diendorfer, Helin Zhou, Martin Mair, Diendorfer, G.,, Pichler, H.,, Rajeev Thottappillil, Thottappillil, Rajeev,   +9 more
core   +1 more source

Organic Representation as a Critical Media Approach to Leadership Studies in Popular Culture

New Directions for Student Leadership, Volume 2025, Issue 185, Page 75-80, Spring 2025.
ABSTRACT This article applies the critical media concept of organic representation to leadership studies as an analytic of how various creators in popular culture today are not just writing inclusive storytelling but, more notably, modeling new modes of production and self‐presentation that are actively challenging hegemonic industry practices and ...
Raffi Sarkissian
wiley   +1 more source

Evaluation Methodology, Numerical Verification and Retrofilling Procedure for Power Transformers to Ensure K‐Class Flame Retardancy and Environmentally Friendly

High Voltage, EarlyView.
ABSTRACT With increasing demands for fire safety and environmental friendliness, retrofilling transformers with alternative insulating liquids has become a growing trend. However, retrofilling power transformers remains uncertain, as more residual mineral oil compromises K‐class flame retardancy, and its impact on environmental performance has yet to ...
Zhenfu Tang, Yihua Qian, Dan Zhou, Wei Hu, Feipeng Wang, Yang Xu   +5 more
wiley   +1 more source