About: Properties of the unusually short pulse sequences occurring prior to the first strokes of negative cloud-to-ground lightning flashes

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About: Properties of the unusually short pulse sequences occurring prior to the first strokes of negative cloud-to-ground lightning flashes Goto Sponge NotDistinct Permalink

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Attributes	Values
rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
rdfs:seeAlso	http://dx.doi.org/10.1002/2014GL060913
Description	We analyze broadband magnetic and electric field measurements of pulse sequences occurring prior to first return strokes of negative cloud-to-ground lightning flashes. Our observations take place a few tens of kilometers from the thunderstorm but we also report the first simultaneous observations of preliminary breakdown pulses from a distance of 400 km. Their amplitudes reach up to 50% of the corresponding return stroke peak and typically decrease by similar to 40% during the sequences. A typical time interval between neighboring pulses was several tens of microseconds. We observe an unusually short duration of the prestroke activity (1-7 ms) reported for the first time during a summer thunderstorm, with a low height of initiation (3-4 km). A very fast propagation speed (similar to 10(6) m/s) is probably maintained for the entire prestroke process. A possible explanation can be based on a hypothesis of unusually strong negative charge sources in the observed thundercloud. We analyze broadband magnetic and electric field measurements of pulse sequences occurring prior to first return strokes of negative cloud-to-ground lightning flashes. Our observations take place a few tens of kilometers from the thunderstorm but we also report the first simultaneous observations of preliminary breakdown pulses from a distance of 400 km. Their amplitudes reach up to 50% of the corresponding return stroke peak and typically decrease by similar to 40% during the sequences. A typical time interval between neighboring pulses was several tens of microseconds. We observe an unusually short duration of the prestroke activity (1-7 ms) reported for the first time during a summer thunderstorm, with a low height of initiation (3-4 km). A very fast propagation speed (similar to 10(6) m/s) is probably maintained for the entire prestroke process. A possible explanation can be based on a hypothesis of unusually strong negative charge sources in the observed thundercloud. (en)
Title	Properties of the unusually short pulse sequences occurring prior to the first strokes of negative cloud-to-ground lightning flashes Properties of the unusually short pulse sequences occurring prior to the first strokes of negative cloud-to-ground lightning flashes (en)
skos:prefLabel	Properties of the unusually short pulse sequences occurring prior to the first strokes of negative cloud-to-ground lightning flashes Properties of the unusually short pulse sequences occurring prior to the first strokes of negative cloud-to-ground lightning flashes (en)
skos:notation	RIV/00216208:11320/14:10289664!RIV15-MSM-11320___
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(GA14-31899S)
http://linked.open...iv/cisloPeriodika	14
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Santolík, Ondřej
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Univerzita Karlova v Praze / Matematicko-fyzikální fakulta
http://linked.open...dnocenehoVysledku	40337
http://linked.open...ai/riv/idVysledku	RIV/00216208:11320/14:10289664
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	sweden; malaysia; discharge; initial breakdown; preliminary breakdown pulses (en)
http://linked.open.../riv/klicoveSlovo	malaysia discharge sweden initial breakdown preliminary breakdown pulses
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[8BD425E47FB9]
http://linked.open...i/riv/nazevZdroje	Geophysical Research Letters
http://linked.open...in/vavai/riv/obor	BL
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	6 (xsd:int)
http://linked.open...vavai/riv/projekt	Satellite, balloon and ground-based measurements of electromagnetic manifestations of thunderstorms
http://linked.open...UplatneniVysledku	2014
http://linked.open...v/svazekPeriodika	41
http://linked.open...iv/tvurceVysledku	Santolík, Ondřej Farges, Thomas Kolmasova, Ivana Lan, Radek Rison, William Uhlir, Ludek
http://linked.open...ain/vavai/riv/wos	000340536000053
issn	0094-8276
number of pages	9 (xsd:int)
http://bibframe.org/vocab/doi	10.1002/2014GL060913
http://localhost/t...ganizacniJednotka	11320

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