Results 101 to 110 of about 7,343 (289)

Modelling Lightning Initiation and Attachment to Aircraft

Journal of Physics: Conference Series, 2014
We present initial calculations of the formation of streamers on an aircraft. A two-dimensional model has been used to determine electric field strengths and charge densities around solids of various geometries and electrical conductivities. The calculations take into account the distortion of the background electric fields by the solid material and ...
E Tam, J J Lowke, A B Murphy
openaire   +1 more source

Climatology and Trends of Sub‐Daily Precipitation Extremes in Croatia

International Journal of Climatology, EarlyView.
Sub‐daily extreme precipitation indices reveal pronounced spatial variability, with the highest intensities and frequencies across the Adriatic region and the highlands. Seasonal and diurnal patterns highlight distinct regional behaviour, including summer maxima over the continental interior and nocturnal or early‐morning peaks along the Adriatic coast.
Ana Starčević, Ksenija Cindrić Kalin, Zoran Pasarić   +2 more
wiley   +1 more source

Numerical Simulation of Channel Cutoff Threshold Effects on Reactivation Process

应用气象学报
Lightning channel reactivation is intimately linked to channel decay and cutoff processes, yet the transition from a conductive plasma channel to a non-conductive state remains difficult to characterize.
Tian Yongan, Tan Yongbo, Zheng Tianxue, Tang Bo   +3 more
doaj   +1 more source

Initiation of a lightning search using the lightning and airglow camera onboard the Venus orbiter Akatsuki

Earth, Planets and Space, 2018
The existence of lightning discharges in the Venus atmosphere has been controversial for more than 30 years, with many positive and negative reports published.
Yukihiro Takahashi, Mitsuteru Sato, Masataka Imai, Ralph Lorenz, Yoav Yair, Karen Aplin, Georg Fischer, Masato Nakamura, Nobuaki Ishii, Takumi Abe, Takehiko Satoh, Takeshi Imamura, Chikako Hirose, Makoto Suzuki, George L. Hashimoto, Naru Hirata, Atsushi Yamazaki, Takao M. Sato, Manabu Yamada, Shin-ya Murakami, Yukio Yamamoto, Tetsuya Fukuhara, Kazunori Ogohara, Hiroki Ando, Ko-ichiro Sugiyama, Hiroki Kashimura, Shoko Ohtsuki   +26 more
doaj   +1 more source

Climatic Drivers of the Area Burned by Winter Wildfires in Northern Italy

International Journal of Climatology, EarlyView.
This study investigates winter wildfires occurring between November and April in northern Italy over the period 2008–2022. By integrating high‐resolution burned‐area data with gridded climatic indices derived from 150 weather stations, it identifies spatial and temporal wildfire patterns, highlights the most fire‐prone mountain areas through pixel ...
Alice Baronetti, Paolo Fiorucci, Antonello Provenzale   +2 more
wiley   +1 more source

On the peak amplitude of lightning return stroke currents striking the sea [PDF]

, 2013
Data gathered from the US National Lightning Detection Network (TM) (NLDN) show that the peak currents of lightning flashes striking the sea are significantly higher than those of lightning flashes striking the land.
Jayaratne, Rohan, Cooray, Vernon,, Cooray, Vernon, Cummins, Kenneth L., Cummins, Kenneth   +4 more
core   +1 more source

Instrumentation for Sub-Ampere Lightning Current Measurement on a Tall Meteorological Tower in Complex Electromagnetic Environment

Remote Sensing
Measurement of lightning current plays a critical role in the field of atmospheric electricity. Traditionally, Rogowski coils or low-resistance shunts were employed for measuring lightning currents in the range from several amperes up to several hundreds
Shaoyang Wang, Yan Gao, Mingli Chen, Zongxu Qiu, Hongbo Zhuang, Runquan Huang   +5 more
doaj   +1 more source

The Lightning Differential Space framework: multiscale analysis of stroke and flash behavior [PDF]

Atmospheric Measurement Techniques
Lightning flashes play a key role in the global electrical circuit, serving as markers of deep convection and indicators of climate variability.
Y. Ben Ami, O. Altaratz, Y. Yair, I. Koren   +3 more
doaj   +1 more source

Preharvest supplemental lighting enhances productivity and modulates postharvest quality in hydroponically grown Apulian unripe melon ‘Scopatizzo’ (Cucumis melo L.)

Journal of the Science of Food and Agriculture, EarlyView.
Abstract BACKGROUND Preharvest light management is increasingly used to enhance yield and fruit quality in soilless systems, yet its effects on unripe melon fruits remain poorly understood. This study evaluated the impact of supplemental red–blue light‐emitting diode (LED) lighting applied during cultivation in a closed‐cycle hydroponic system on ...
Onofrio Davide Palmitessa, Marica Troilo, Carlo Porfido, Roberto Terzano, Davide De Angelis, Massimiliano Renna, Francesco Caponio, Pietro Santamaria   +7 more
wiley   +1 more source

Management of Absent Upper Esophageal Sphincter Opening After Neurological Injury

The Laryngoscope, EarlyView.
This study evaluated the effects of swallowing therapy and cricopharyngeus (CP) muscle surgery on upper esophageal sphincter (UES) opening, oral intake, and airway protection in patients with absent UES opening following neurological injury. CP‐targeted surgeries were associated with improved bolus passage and oral intake, but persistent aspiration ...
Radhika Rawat, Cyrus W. Abrahamson, Kelly Rogers, Jonelyn Langenstein, Jaymie Bromfield, Arjun Seth, James A. Burns, Andrew P. Stein   +7 more
wiley   +1 more source