Trvání oscilací typu planetárních vln v ionosféře středních šířek

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378289%3A_____%2F06%3A00085428" target="_blank" >RIV/68378289:_____/06:00085428 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Persistence of planetary wave type oscillations in the mid-latitude ionosphere

Popis výsledku v původním jazyce

We deal with the planetary wave type oscillations on foF2 above two Japanese and two US stations over a solar cycle (1979-1989) using wavelet transforms. Waves with periods near 5, 10 and 16 days are studied and only events of duration of three wave cycles and more are analyzed. The results are compared with our previous analysis for foF2 and the lower ionosphere above Europe. Typical persistence of oscillations is 4 wave cycles for 5-day, 3.5 for 10-day, and 3 wave cycles for 16-day oscillations in allthree geographic areas. The spectral distribution of persistence is too broad to make prediction of their duration possible. Longitudinal extent of oscillations increases with their periods. The persistence of oscillations in foF2 and the lower ionosphere is very similar, but the similarity in occurrence of individual events is rather poor.

Název v anglickém jazyce

Persistence of planetary wave type oscillations in the mid-latitude ionosphere

Popis výsledku anglicky

We deal with the planetary wave type oscillations on foF2 above two Japanese and two US stations over a solar cycle (1979-1989) using wavelet transforms. Waves with periods near 5, 10 and 16 days are studied and only events of duration of three wave cycles and more are analyzed. The results are compared with our previous analysis for foF2 and the lower ionosphere above Europe. Typical persistence of oscillations is 4 wave cycles for 5-day, 3.5 for 10-day, and 3 wave cycles for 16-day oscillations in allthree geographic areas. The spectral distribution of persistence is too broad to make prediction of their duration possible. Longitudinal extent of oscillations increases with their periods. The persistence of oscillations in foF2 and the lower ionosphere is very similar, but the similarity in occurrence of individual events is rather poor.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

DG - Vědy o atmosféře, meteorologie

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2006

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Annals of Geophysics

ISSN

1593-5213

e-ISSN

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Svazek periodika

49

Číslo periodika v rámci svazku

-

Stát vydavatele periodika

IT - Italská republika

Počet stran výsledku

12

Strana od-do

1189-1200

Kód UT WoS článku

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EID výsledku v databázi Scopus

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