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STEP LEADER [1 record]
Record 1 - internal organization data 2004-08-01
Record 1, English
Record 1, Subject field(s)
- Atmospheric, Climatic and Meteorological Phenomena
Record 1, Main entry term, English
- stepped leader
1, record 1, English, stepped%20leader
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
- step leader 2, record 1, English, step%20leader
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
Leader stroke of a first discharge of lightning in which the ionized channel is propagated by successive jumps. 3, record 1, English, - stepped%20leader
Record number: 1, Textual support number: 1 CONT
The first stroke is initiated by a preliminary breakdown in the cloud, which channels a negative charge toward the ground in a series of short luminous steps called the step leader. 2, record 1, English, - stepped%20leader
Record number: 1, Textual support number: 2 CONT
Pictures of cloud-to-cloud discharges taken with special cameras show a faint luminosity proceeding downward in a series of jumps ..., and sometimes forking or branching. This phenomenon is called a stepped leader. 4, record 1, English, - stepped%20leader
Record 1, French
Record 1, Domaine(s)
- Phénomènes météorologiques, climatiques et atmosphériques
Record 1, Main entry term, French
- traceur par bonds
1, record 1, French, traceur%20par%20bonds
correct, masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
- décharge pilote par bonds successifs 2, record 1, French, d%C3%A9charge%20pilote%20par%20bonds%20successifs
correct, feminine noun
- traceur par bonds successifs 3, record 1, French, traceur%20par%20bonds%20successifs
correct, masculine noun
- traceur négatif 4, record 1, French, traceur%20n%C3%A9gatif
masculine noun
Record 1, Textual support, French
Record number: 1, Textual support number: 1 DEF
Traceur d'une première décharge, dans laquelle le canal ionisé s'établit par bonds successifs. 5, record 1, French, - traceur%20par%20bonds
Record number: 1, Textual support number: 1 CONT
Il y a tout d'abord une première décharge de faible intensité, appelée traceur par bonds, qui ouvre un canal. Cette première décharge est créée quand les ions négatifs [...] sont accélérés sous l'effet du champ électrique intense. 6, record 1, French, - traceur%20par%20bonds
Record number: 1, Textual support number: 2 CONT
Dans les coups de foudre descendant, le traceur négatif prend naissance dans le sein des masses négatives du nuage [...] Il progresse ensuite en direction du sol, par bonds successifs de quelques dizaines de mètres (c'est le stepped leader [...]), et avec une vitesse moyenne comprise entre 0,15 et 1,5 mètre par microseconde. Au fur et à mesure de sa progression, on assiste à de nombreuses ramifications orientées vers le bas, tandis que sa luminosité s'accroît. 4, record 1, French, - traceur%20par%20bonds
Record 1, Key term(s)
- décharge pilote par bonds
- traceur négatif par bonds
- traceur négatif par bonds successifs
Record 1, Spanish
Record 1, Campo(s) temático(s)
- Fenómenos meteorológicos, climáticos y atmosféricos
Record 1, Main entry term, Spanish
- descarga en saltos
1, record 1, Spanish, descarga%20en%20saltos
feminine noun
Record 1, Abbreviations, Spanish
Record 1, Synonyms, Spanish
Record 1, Textual support, Spanish
Record number: 1, Textual support number: 1 DEF
Relámpago guía de una primera descarga tormentosa en la que el canal ionizado se propaga a saltos sucesivos. 1, record 1, Spanish, - descarga%20en%20saltos
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