Results 31 to 40 of about 24,612 (230)

Diurnal characteristics of lightning flashes detected over the São Paulo lightning mapping array [PDF]

Journal of Geophysical Research: Atmospheres, 2015
AbstractThis study examines diurnal variations of lightning flash characteristics observed by the Lightning Mapping Array in São Paulo, Brazil. The diurnal flash counts exhibit the typical afternoon convective maximum. The mean source altitude demonstrates a discrete increase that is temporally coincident with the local sunrise. The mean horizontal and
T. Chronis, T. Lang, W. Koshak, R. Blakeslee, H. Christian, E. McCaul, J. Bailey   +6 more
openaire   +1 more source

Polarity Asymmetries in Rocket‐Triggered Lightning

Geophysical Research Letters, 2023
The dissonant development of positive and negative lightning leaders is a central question in atmospheric electricity. It is also the likely root cause of other reported asymmetries between positive and negative lightning flashes, including the ones ...
C. L. daSilva, W. P. Winn, M. C. Taylor, G. D. Aulich, S. J. Hunyady, K. B. Eack, H. E. Edens, R. G. Sonnenfeld, P. R. Krehbiel, E. M. Eastvedt, J. J. Trueblood   +10 more
doaj   +1 more source

Analysis of the lightning production of convective cells [PDF]

Atmospheric Measurement Techniques, 2019
This paper presents an analysis of the lightning production of convective cells. The cells were detected by the MeteoSwiss Thunderstorms Radar Tracking (TRT) algorithm in the course of a lightning measurement campaign that took place in the summer of ...
J. Figueras i Ventura, N. Pineda, N. Pineda, N. Besic, J. Grazioli, A. Hering, O. A. van der Velde, D. Romero, A. Sunjerga, A. Mostajabi, M. Azadifar, M. Rubinstein, J. Montanyà, U. Germann, F. Rachidi   +14 more
doaj   +1 more source

Mapping lightning in the sky with a mini array [PDF]

Geophysical Research Letters, 2016
AbstractMini arrays are commonly used for infrasonic and seismic studies. Here we report for the first time the detection and mapping of distant lightning discharges in the sky with a mini array. The array has a baseline to wavelength ratio ∼4.2·10−2 to record very low frequency electromagnetic waves from 2 to 18 kHz.
Martin Füllekrug, Zhongjian Liu, Kuang Koh, Andrew Mezentsev, Stéphane Pedeboy, Serge Soula, Sven‐Erik Enno, Jacqueline Sugier, Michael J. Rycroft   +8 more
openaire   +4 more sources

Statistical analysis of storm electrical discharges reconstituted from a lightning mapping system, a lightning location system, and an acoustic array [PDF]

, 2016
International audienceIn the framework of the European Hydrological Cycle in the Mediterranean Experiment project, a field campaign devoted to the study of electrical activity during storms took place in the south of France in 2012.
Coulouvrat, François, Defer, Eric, Farges, Thomas, Gallin, Louis-Jonardan, Marchiano, Régis, Nuret, Mathieu, Rison, William, Schulz, Wolfgang   +7 more
core   +3 more sources

A Parallax Shift Effect Correction Based on Cloud Top Height for FY-4A Lightning Mapping Imager (LMI)

Remote Sensing, 2023
The Lightning Mapping Imager (LMI) onboard the Fengyun-4A (FY-4A) satellite is the first independently developed satellite-borne lightning imager in China.
Yuansheng Zhang, Dongjie Cao, Jing Yang, Feng Lu, Dongfang Wang, Ruiting Liu, Hongbo Zhang, Dongxia Liu, Zhixiong Chen, Huimin Lyu, Wei Cai, Shulong Bao, Xiushu Qie   +12 more
doaj   +1 more source

LMA observation of upward flashes at Säntis Tower: preliminary result [PDF]

, 2018
Lightning striking tall towers is mainly of the upward lightning type, which is characterized by the absence of a first return stroke and the presence of an initial continuous current (ICC) with or without superimposed pulses.
Azadifar, M., Montañá Puig, Juan, Mostajabi, A., Pineda Rüegg, Nicolau, Rachidi, F, Romero Durán, David, Rubinstein, M., Van der Velde, Oscar Arnoud   +7 more
core   +1 more source

Polarimetric radar characteristics of lightning initiation and propagating channels [PDF]

Atmospheric Measurement Techniques, 2019
In this paper we present an analysis of a large dataset of lightning and polarimetric weather radar data collected in the course of a lightning measurement campaign that took place in the summer of 2017 in the area surrounding Säntis, in the northeastern
J. Figueras i Ventura, N. Pineda, N. Pineda, N. Besic, J. Grazioli, A. Hering, O. A. van der Velde, D. Romero, A. Sunjerga, A. Mostajabi, M. Azadifar, M. Rubinstein, J. Montanyà, U. Germann, F. Rachidi   +14 more
doaj   +1 more source

Lightning Imaging with LOFAR

EPJ Web of Conferences, 2017
We show that LOFAR can be used as a lightning mapping array with a resolution that is orders of magnitude better than existing arrays. In addition the polarization of the radiation can be used to track the direction of the stepping discharges.
Scholten Olaf, Buitink Stijn, Dina Roxana, Dorosti Hasankiadeh Qader, Frieswijk Wilfred, Hendriks Freddie, Muller Jeroen, Sardjan Danny, Trinh Gia, Bonardi Antonio, Corstanje Arthur, Ebert Ute, Falcke Heino, Hörandel Jörg, Mitra Pragati, Mulrey Katharine, Nelles Anna, Rachen Jörg, Rossetto Laura, Rutjes Casper, Schellart Pim, Thoudam Satyendra, ter Veen Sander, Winchen Tobias   +23 more
doaj   +1 more source

On the classification of self-triggered versus other-triggered lightning flashes [PDF]

, 2018
We present in this paper lightning current measurements and LMA (Lightning Mapping Array) data associated with upward flashes observed at the Sàntis Tower during Summer 2017.
Azadifar, Mohammad, Diendorfer, Gerhard, Montanya, Joan, Mostajabi, Amirhossein, Pineda, Nicolau, Rachidi, Farhad, Romero, David, Rubinstein, Marcos, Sunjerga, Antonio, Van der Velde, Oscar   +9 more
core   +1 more source