Search Results - "Lan, Radek"

Subionospheric propagation and peak currents of preliminary breakdown pulses before negative cloud‐to‐ground lightning discharges by Kolmašová, Ivana, Santolík, Ondřej, Farges, Thomas, Cummer, Steven A., Lán, Radek, Uhlíř, Luděk

“…We analyze broadband electromagnetic measurements of pulse sequences occurring prior to first return strokes of negative cloud‐to‐ground lightning flashes…”
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Share of Discontinuities in the Ozone Concentration Data from Three Reanalyses by Krizan, Peter, Kozubek, Michal, Lastovicka, Jan, Lan, Radek

“…Ozone is a very important trace gas in the stratosphere and, thus, we need to know its time evolution over the globe. However, ground-based measurements are…”
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First Observations of Elves and Their Causative Very Strong Lightning Discharges in an Unusual Small‐Scale Continental Spring‐Time Thunderstorm by Kolmašová, Ivana, Santolík, Ondřej, Kašpar, Petr, Popek, Martin, Pizzuti, Andrea, Spurný, Pavel, Borovička, Jiří, Mlynarczyk, Janusz, Manninen, Jyrki, Macotela, Edith L., Zacharov, Petr, Lán, Radek, Uhlíř, Luděk, Diendorfer, Gerhard, Bennett, Alec, Füllekrug, Martin, Slošiar, Rudolf

“…We show for the first time that elves can be produced by an unusual small‐scale continental spring‐time thunderstorm. The storm occurred in Central Europe,…”
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Electron acceleration above thunderclouds by Füllekrug, Martin, Kolmasova, Ivana, Santolik, Ondrej, Farges, Thomas, Bór, József, Bennett, Alec, Parrot, Michel, Rison, William, Zanotti, Ferruccio, Arnone, Enrico, Mezentsev, Andrew, Lan, Radek, Uhlir, Ludek, Harrison, Giles, Soula, Serge, van der Velde, Oscar, Pinçon, Jean-Louis, Helling, Christiane, Diver, Declan

“…The acceleration of electrons results in observable electromagnetic waves which can be used for remote sensing. Here, we make use of ∼4 Hz-66 MHz radio waves…”
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Observation of lightning-induced signals on the summit of La Grande Montagne: HF measurements by Kolmasova, Ivana, Santolik, Ondrej, Uhlir, Ludek, Lan, Radek

“…A ground-based version of the IME-HF analyzer, developed for the French TARANIS mission, was connected to a magnetic loop antenna and used for broadband…”
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Lightning at Jupiter pulsates with a similar rhythm as in-cloud lightning at Earth by Kolmašová, Ivana, Santolík, Ondřej, Imai, Masafumi, Kurth, William S., Hospodarsky, George B., Connerney, John E. P., Bolton, Scott J., Lán, Radek

“…Our knowledge about the fine structure of lightning processes at Jupiter was substantially limited by the time resolution of previous measurements. Recent…”
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Lightning initiation: Strong pulses of VHF radiation accompany preliminary breakdown by Kolmašová, Ivana, Santolík, Ondřej, Defer, Eric, Rison, William, Coquillat, Sylvain, Pedeboy, Stéphane, Lán, Radek, Uhlíř, Luděk, Lambert, Dominique, Pinty, Jean-Pierre, Prieur, Serge, Pont, Véronique

“…We analyze lightning initiation process using magnetic field waveforms of preliminary breakdown (PB) pulses observed at time scales of a few tens of…”
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Properties of the unusually short pulse sequences occurring prior to the first strokes of negative cloud-to-ground lightning flashes by Kolmašová, Ivana, Santolík, Ondřej, Farges, Thomas, Rison, William, Lán, Radek, Uhlíř, Luděk

“…We analyze broadband magnetic and electric field measurements of pulse sequences occurring prior to first return strokes of negative cloud‐to‐ground lightning…”
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Continental thunderstorm ground enhancement observed at an exceptionally low altitude by KolmaÅ¡ová, Ivana, Santolík, OndÅej, Slegl, Jakub, Popová, Jana, Sokol, ZbynÄk, Zacharov, Petr, Ploc, OndÅej, Diendorfer, Gerhard, Langer, Ronald, Lán, Radek, Strhárský, Igor

“…Two long-lasting thunderstorm ground enhancement (TGE) events were registered at the Milešovka meteorological observatory in Czechia (50.55∘ N, 13.93∘ E; 837 m…”
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Interferometric imaging of Intensely Radiating Negative Leaders by Scholten, Olaf, Hare, Brian M, Dwyer, Joe, Liu, Ningyu, Sterpka, Chris, Kolmasov, Ivana, Santolik, Ondrej, Lan, Radek, Uhlir, Ludek, Buitink, Stijn, Huege, Tim, Nelles, Anna, ter Veen, Sander

“…Phys Rev D 105, 062007 (2022) The common phenomenon of lightning still harbors many secrets and only recently a new propagation mode was observed for negative…”
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