2-CHANNEL SPECTRAL-ANALYSIS OF IRREGULAR LENGTH OF DAY VARIATIONS ANDOF SUNSPOT NUMBERS BASED ON DATA IN AN INTERVAL FROM 1962 TO 1991 YEARS

Authors
KURBASOVA GS RYCHLOVA LV RYBALOVA MN
Citation
Gs. Kurbasova et al., 2-CHANNEL SPECTRAL-ANALYSIS OF IRREGULAR LENGTH OF DAY VARIATIONS ANDOF SUNSPOT NUMBERS BASED ON DATA IN AN INTERVAL FROM 1962 TO 1991 YEARS, ASTRONOM ZH, 71(6), 1994, pp. 930-934
Citations number
6
Categorie Soggetti
Astronomy & Astrophysics
Journal title
ASTRONOMICESKIJ ZURNAL
ISSN journal
00046299 → ACNP
Volume
71
Issue
6
Year of publication
1994
Pages
930 - 934
Database
ISI
SICI code
0004-6299(1994)71:6<930:2SOILO>2.0.ZU;2-F
Abstract
A two-channel autoregressive analysis of irregular length of day varia tions and sunspot numbers in an interval from 1962 to 1991 years has b een done. It shows a correlation between quasi two-year periods of sun spot numbers and the corresponding periodic component of irregular len gth of day variations. The square coherent modulus at frequency 0.43 c ycle yr-1 (period 2.3 years) is 0.64. The coherence phase at this freq uency is 39-degrees.