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Titolo:
The 11-year solar cycle, the Sun's rotation, and the middle stratosphere in winter. Part II: Response of planetary waves
Autore:
Soukharev, B; Labitzke, K;
Indirizzi:
Free Univ Berlin, Inst Meteorol, D-12165 Berlin, Germany Free Univ BerlinBerlin Germany D-12165 eteorol, D-12165 Berlin, Germany St Petersburg State Univ, Dept Climatol, St Petersburg 199171, Russia St Petersburg State Univ St Petersburg Russia 199171 burg 199171, Russia
Titolo Testata:
JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS
fascicolo: 18, volume: 63, anno: 2001,
pagine: 1931 - 1939
SICI:
1364-6826(200112)63:18<1931:T1SCTS>2.0.ZU;2-4
Fonte:
ISI
Lingua:
ENG
Soggetto:
UV VARIABILITY; CLIMATE; OZONE;
Keywords:
11-year solar cycle; middle stratosphere; winter; planetary waves;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
20
Recensione:
Indirizzi per estratti:
Indirizzo: Labitzke, K Free Univ Berlin, Inst Meteorol, Carl Heinrich Beckerweg 6-10,D-12165 Berlin, Germany Free Univ Berlin Carl Heinrich Beckerweg 6-10 Berlin Germany D-12165
Citazione:
B. Soukharev e K. Labitzke, "The 11-year solar cycle, the Sun's rotation, and the middle stratosphere in winter. Part II: Response of planetary waves", J ATMOS S-P, 63(18), 2001, pp. 1931-1939

Abstract

The effect of the 11-year solar cycle on the response of planetary wavenumbers 1 and 2 at 10 and 30 hPa in winter to solar activity oscillations on the time scale of the Sun's rotation (27.2 day) is discussed in terms of statistical spectral analysis. The three oscillations studied are the 27.2 d (period of the Sun's rotation), 25.3 d (periodicity caused by modulation of the 27.2 d stratospheric response by annual atmospheric variation), and 54.4 d (doubled period of the solar rotation). A significant effect of the 11-year solar cycle is found for the 54.4 d periodicity in planetary wavenumber 1, and for the 27.2 and 25.3 d periodicities in planetary wavenumber 2. The effect of the 11-year solar cycle is expressed in the evident differences between the amplitudes of responses of planetary waves at maximum and minimum of the solar cycle: the amplitudes are much larger at high than at lowsolar activity. The 11-year modulation of planetary wave activity is most pronounced at mid-latitudes, mainly at 40-60 degreesN, where the observed variability of planetary waves is large. The results obtained are in good agreement with results of the recent modeling study by Shindell et al. (Science 284 (1999) 305). (C) 2001 Elsevier Science Ltd. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 02/04/20 alle ore 19:07:16