Is the variability of ENSO due to frequency modulation by the long term variation in solar activity?

被引：0

作者：

Edmonds, Ian ^{[1
]}

Killen, Peter ^{[2
]}

机构：

[1] Queensland Univ Technol, Brisbane, Australia

[2] Univ Sunshine Coast, Sunshine Coast, Australia

来源：

JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS | 2025年 / 269卷

关键词：

Frequency modulation; Solar activity; Modelling El Nino Southern Oscillation; Temperature and rainfall; SOUTHERN-OSCILLATION; EL-NINO; TEMPERATURE;

D O I：

10.1016/j.jastp.2025.106490

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

The spectral content of the El Nino Southern Oscillation (ENSO) is broad and complex, a characteristic shared by other climate variables. Spectral analysis of ENSO in different time intervals demonstrated that ENSO is frequency modulated. An analytical model in which the natural period of ENSO is frequency modulated by long term centennial range variation in solar activity was developed and shown to correlate well with the observed ENSO and reconstructed ENSO variation in the decadal periodicity range. A method for identifying the occurrence and the period of frequency modulation in climate variables was developed and tested.

引用

页数：12

共 51 条

[1] Hydroclimate extremes in a north Australian drought reconstruction asymmetrically linked with Central Pacific Sea surface temperatures [J].