Zobrazeno 1 - 10 of 18 pro vyhledávání: '"Radek, Lan"'
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Akademický článek
Share of Discontinuities in the Ozone Concentration Data from Three Reanalyses
Autor: Peter Krizan, Michal Kozubek, Jan Lastovicka, Radek Lan
Publikováno v: Atmosphere, Vol 12, Iss 11, p 1508 (2021)
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 rare, especially in the Southern Hemisphere, and while satellite observations provide broader
Externí odkaz: https://doaj.org/article/c9ef9bcb98594210bf8cbfed03bf5473
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2
Share of Discontinuities in the Ozone Concentration Data from Three Reanalyses
Autor: Radek Lan, Jan Laštovička, Peter Krizan, Michal Kozubek
Publikováno v: Atmosphere
Volume 12
Issue 11
Atmosphere, Vol 12, Iss 1508, p 1508 (2021)
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 rare, especially in the Southern Hemisphere, and while satellite observations provide broader
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::97e2e805f7ed5b51e0c2181b9c618887
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3
A distinct negative leader propagation mode
Autor: T. Huege, Ivana Kolmasova, Heino Falcke, Olaf Scholten, Ningyu Liu, A. Nelles, H. Pandya, Stijn Buitink, Katie Mulrey, Jörg P. Rachen, Jörg R. Hörandel, Arthur Corstanje, Joseph R. Dwyer, Radek Lan, C. Sterpka, Brian Hare, Luděk Uhlíř, Ondřej Santolík, Tobias Winchen, G. K. Krampah, S. ter Veen, Pragati Mitra, T. N. G. Trinh, Satyendra Thoudam
Publikováno v: Scientific Reports, 11:16256. Nature Publishing Group
Scientific Reports, 11, 1-11
Scientific Reports, 11 (1), Art.Nr. 16256
Scientific Reports, Vol 11, Iss 1, Pp 1-11 (2021)
Scientific Reports
Scientific reports 11, 16256 (2021). doi:10.1038/s41598-021-95433-5
Scientific Reports, 11, 1, pp. 1-11
Scientific reports 11, 16256 (2021). doi:10.1038/s41598-021-95433-5
The common phenomenon of lightning still harbors many secrets such as what are the conditions for lightning initiation and what is driving the discharge to propagate over severa
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::49a5b08596e61febffec4893b8e53f5e
https://research.rug.nl/en/publications/5ab3848f-cdb5-49f4-a576-688152d016e0
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4
First observation of significant long-lasting Thunderstorm Ground Enhancements on the Milešovka peak (altitude 837 m) in Czechia
Autor: Jakub Šlegl, Igor Strhárský, Martin Kákona, Jana Popová, Ivana Kolmasova, O. Ploc, Ondřej Santolík, Zbyněk Sokol, Petr Zacharov, Ronald Langer, Gerhard Diendorfer, Radek Lan
Bursts of gamma rays observed on the Earth’s surface – so called Thunderstorm Ground Enhancements (TGE) were detected by a plastic scintillator (disassembled from the particle detector SEVAN) located in the observatory building on the Milešovka
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4a79f3c44136cb5c4bd5d685d34cf3df
https://doi.org/10.5194/egusphere-egu21-3141
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5
The Initial Stage of Cloud Lightning Imaged in High Resolution
Autor: Ondrej Santolik, Katharine Mulrey, A. Nelles, Luděk Uhlíř, S. ter Veen, Heino Falcke, Tobias Winchen, Arthur Corstanje, Olaf Scholten, H. Pandya, Tim Huege, C. Sterpka, Joseph R. Dwyer, G. K. Krampah, Radek Lan, Pragati Mitra, Brian Hare, A. Pel, Ivana Kolmasova, Satyendra Thoudam, T. N. G. Trinh, Jörg P. Rachen, Jörg R. Hörandel, Stijn Buitink
Publikováno v: Journal of geophysical research / D 126(4), 033126 (2021). doi:10.1029/2020JD033126
Journal of Geophysical Research-Atmospheres, 126, 1-19
Journal of Geophysical Research, 126:e33126. AMER GEOPHYSICAL UNION
Journal of Geophysical Research-Atmospheres, 126, 4, pp. 1-19
With LOFAR we have been able to image the development of lightning flashes with meter-scale accuracy and unprecedented detail. We discuss the primary steps behind our most recent lightning mapping method. To demonstrate the capabilities of our techni
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::074ce7ac1a1598e80656e1260d9190c1
https://ui.adsabs.harvard.edu/abs/2021JGRD..12633126S
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7
The RPW Time Domain Sampler (TDS) on Solar Orbiter: In-flight performance and first data
Autor: Jan Soucek, Ludek Uhlir, Radek Lan, David Pisa, Ivana Kolmasova, Ondrej Santolik, Vratislav Krupar, Oksana Kruparova, Milan Maksimovic, Matthieu Kretzschmar, Yuri Khotyaintsev, Thomas Chust
The Radio and Plasma Wave instrument (RPW) for Solar Orbiter includes a Time Domain Sampler sub-unit (TDS) designed to capture electromagnetic waveform measurements of high-frequency plasma waves and antenna voltage spikes associated with dust impact
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::11c3e71e43e3830b374d882eacb38b11
https://doi.org/10.5194/egusphere-egu2020-18888
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8
Akademický článek
Electron acceleration above thunderclouds
Autor: Martin Füllekrug, Ivana Kolmasova, Ondrej Santolik, Thomas Farges, József Bór, Alec Bennett, Michel Parrot, William Rison, Ferruccio Zanotti, Enrico Arnone, Andrew Mezentsev, Radek Lan, Ludek Uhlir, Giles Harrison, Serge Soula, Oscar van der Velde, Jean-Louis Pinçon, Christiane Helling, Declan Diver
Publikováno v: Environmental Research Letters, Vol 8, Iss 3, p 035027 (2013)
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 emitted by two consecutive intense positive lightning discharges to investigate their im
Externí odkaz: https://doaj.org/article/65d5c97e3fce4e9da10fcdc158f901d9
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9
Subionospheric propagation and peak currents of preliminary breakdown pulses before negative cloud‐to‐ground lightning discharges
Autor: Luděk Uhlíř, Thomas Farges, Ivana Kolmasova, Steven A. Cummer, Ondřej Santolík, Radek Lan
Publikováno v: Geophysical Research Letters. 43:1382-1391
We analyze broadband electromagnetic measurements of pulse sequences occurring prior to first return strokes of negative cloud-to-ground lightning flashes. Signals generated by lightning discharges were recorded close to the thunderstorm by a magneti
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b1ff170b2d70f3ac5ddec302ebcb3c15
https://doi.org/10.1002/2015gl067364
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10
Lightning initiation: Strong pulses of VHF radiation accompany preliminary breakdown
Autor: Dominique Lambert, Jean-Pierre Pinty, Luděk Uhlíř, Véronique Pont, Radek Lan, S. Pedeboy, Sylvain Coquillat, Eric Defer, Ivana Kolmasova, Serge Prieur, W. Rison, Ondřej Santolík
Publikováno v: Scientific Reports
Scientific Reports, 2018, 8, ⟨10.1038/s41598-018-21972-z⟩
Scientific Reports, Vol 8, Iss 1, Pp 1-10 (2018)
We analyze lightning initiation process using magnetic field waveforms of preliminary breakdown (PB) pulses observed at time scales of a few tens of microseconds by a broad-band receiver. We compare these pulses with sources of narrow-band very high
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3e88b501d69a5ef6f5e9a70f3c380a83
https://hal-insu.archives-ouvertes.fr/insu-03671651/file/s41598-018-21972-z.pdf
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