Results 51 to 60 of about 3,922,670 (148)

A study on hydrometeor classification with polarimetric variables

, 2014
© 2014 Dr. Guang WenQuality control algorithms are studied using data collected by the CP-2 S-band radar located in Brisbane, Queensland, Australia. A data smoothing method is introduced to eliminate data errors and fluctuations.
WEN, GUANG
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A Framework for Modeling Aerosol‐Cloud‐Lightning Interactions: Validation of Charge Structure and Aerosol Effects

Earth and Space Science, Volume 13, Issue 9, September 2026.
Abstract This study develops a novel framework within the Weather Research and Forecast Model for modeling aerosol‐cloud‐lightning interactions. The framework explicitly represent aerosol‐cloud interactions by prescribing aerosols with two configurations: an idealized setup, where both cloud condensation nuclei (CCN) and ice nucleating particles (IN ...
Weishan Wang, Guoxing Chen, Yijun Zhang, Jen‐Ping Chen, Dong Zheng, Liangtao Xu, Chuanhong Zhao   +6 more
wiley   +1 more source

The Role of Lightning in Atmospheric Chemistry

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 16, 28 August 2026.
Abstract Lightning has important effects on atmospheric constituents in primarily the middle and upper troposphere. We summarize the effects of lightning on atmospheric chemistry that have been published since the last major review in 2007. The estimates of NOx production by lightning (LNOx) are based on five methods: theoretical/laboratory estimates ...
Kenneth E. Pickering, Dale J. Allen, Heidi Huntrieser   +2 more
wiley   +1 more source

Improving the interpretability of classification rules discovered by an ant colony algorithm. [PDF]

, 2013
The vast majority of Ant Colony Optimization (ACO) al- gorithms for inducing classification rules use an ACO-based procedure to create a rule in an one-at-a-time fashion. An improved search strategy has been proposed in the cAnt- MinerPB algorithm, where
Otero, Fernando E.B., Alex A. Freitas, Freitas, Alex A., Fernando E.B. Otero   +3 more
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Unique Vertical Characteristics of Hydrometeors Observed in the Tropical Cyclone Outer Rainband Region

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 15, 16 August 2026.
Abstract This study investigates the vertical cloud microphysics in the stratiform sectors of Hurricane Tammy's outer rainband region and their relationship to local environments. We used in situ Optical Array Probe (OAP) measurements and tail‐Doppler radar data from four NOAA P‐3 spiral modules on 19–22 October 2023, as Tammy intensified from a ...
Xin Yang, Xuejin Zhang, Jun A. Zhang
wiley   +1 more source

eRules: a modular adaptive classification rule learning algorithm for data streams [PDF]

, 2012
Advances in hardware and software in the past decade allow to capture, record and process fast data streams at a large scale. The research area of data stream mining has emerged as a consequence from these advances in order to cope with the real time ...
Salvador, M. M., Frederic Stahl, Stahl, F., Stahl, Frederic, Gaber, M. M., Mohamed Medhat Gaber, Gaber, M., Medhat Gaber, M., Salvador, Manuel Martin, Salvador, M., Manuel Martin Salvador   +10 more
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Damaging Surface Hail in Simulations of Satellite‐Detected Hailstorms in Australia's Tropics

Atmospheric Science Letters, Volume 27, Issue 8, August 2026.
Satellite detections of hail signatures are uncertain in the tropics, where the deep troposphere increases the chances that ice detected aloft will melt before it reaches the surface. We used numerical weather simulations to examine the plausibility of damaging surface hail at times and locations when satellites detected hail signatures over Australia ...
Timothy H. Raupach, Sarah D. Bang, John T. Allen   +2 more
wiley   +1 more source

Analysis of the Charge Structure and Lightning Activity During a Severe Beijing Thunderstorm via an Innovative Balloon‐Borne 3D Electric Field Observation System

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 14, 28 July 2026.
Abstract We developed an innovative balloon‐borne observation system based on China's BeiDou sounding platform that integrates a three‐axis electric field sensor for in‐cloud measurements of thunderstorm electrification. On 13 May 2025, this system was deployed during a severe convective storm over Beijing. In combination with multisource observations,
Ye Tian, Wenbin Gao, Chenyi Shi, Yue Sun, Xuebo Fan, Lei Meng, YongTao Yu, LongBin Zhang, Chen Chang, Jiachun Yang, Jin Li   +10 more
wiley   +1 more source

Postfrontal Deep Convection Over the Southern Ocean and Orographic Precipitation Enhancement Over Tasmania

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 14, 28 July 2026.
Abstract The orographic precipitation enhancement (OPE) generated within wintertime post‐frontal air masses is a prominent climate feature of Tasmania. This study investigates a passage of a cold sector of a mid‐latitude cyclone over the Southern Ocean (SO) and Western Tasmania (WTAS) observed from 2100 UTC 11 July to 0300 UTC 13 July.
Artur Gevorgyan, Steven Siems, Yi Huang, Luis Ackermann, T. Alinejadtabrizi   +4 more
wiley   +1 more source

Hierarchical classification of G-protein-coupled receptors with a PSO/ACO algorithm [PDF]

, 2006
In our previous work we have proposed a hybrid Particle Swarm Optimisation / Ant Colony Optimisation (PSO/ACO) algorithm for discovering classification rules.
Holden, Nicholas, Freitas, Alex A.
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