Persistence of the planetary wave in the lower ionosphere.

Kód výsledku v IS VaVaI

RIV/68378289:_____/03:04033542 - isvavai.cz

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Persistence of the planetary wave in the lower ionosphere.

Popis výsledku v původním jazyce

The transient planetary waves in the atmosphere and ionosphere seem to occur in the form of bursts of a couple of waves with limited persistence. To study persistence of planetary wave events in the lower ionosphere, data from two radio path from CentralEurope are used, Luxenbourgh - Panská Ves (f=6.09MHz, feq=2.1-2.2 MHz) and Deutschlandfunk - Panská Ves (f=1539kHz, feq=650-700 k Hz). The absorption along the former radio paths is formed very predominantly at altitudes of about 90-100 km, whereas thelatter absorption is formed mostly at altitudes of about 85-90 km. The persistence of planetary wave type oscillations is studied in the three period bands centred at 5, 10 and 16 days. Waves with period T near 5 days reveal a typical persistence of waveevents around 5 cycles. Waves with T = 10 days are less persistent with a typical persistence of 3-4 cycles. The typical persistence of waves T = 16 days is no more than 3 cycles. In terms of number of cycles, the persistence of oscollat

Název v anglickém jazyce

Persistence of the planetary wave in the lower ionosphere.

Popis výsledku anglicky

The transient planetary waves in the atmosphere and ionosphere seem to occur in the form of bursts of a couple of waves with limited persistence. To study persistence of planetary wave events in the lower ionosphere, data from two radio path from CentralEurope are used, Luxenbourgh - Panská Ves (f=6.09MHz, feq=2.1-2.2 MHz) and Deutschlandfunk - Panská Ves (f=1539kHz, feq=650-700 k Hz). The absorption along the former radio paths is formed very predominantly at altitudes of about 90-100 km, whereas thelatter absorption is formed mostly at altitudes of about 85-90 km. The persistence of planetary wave type oscillations is studied in the three period bands centred at 5, 10 and 16 days. Waves with period T near 5 days reveal a typical persistence of waveevents around 5 cycles. Waves with T = 10 days are less persistent with a typical persistence of 3-4 cycles. The typical persistence of waves T = 16 days is no more than 3 cycles. In terms of number of cycles, the persistence of oscollat

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

OC 271.10: Vliv ionosféry na šíření radiových vln.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2003

Kód důvěrnosti údajů

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

Název periodika

Studia geophysica et geodaetica

ISSN

0039-3169

e-ISSN

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Svazek periodika

47

Číslo periodika v rámci svazku

N/A

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

12

Strana od-do

161-172

Kód UT WoS článku

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EID výsledku v databázi Scopus

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