广州气温与厄尔尼诺的多尺度相互联系

MULTISCALE RELATION OF TEMPERATURE IN GUANGZHOU WITH EI Nino

关键词:  气温  厄尔尼诺  多尺度相互联系

Key words:  Temperature  E1 Nino  Multiscale relation

摘要:

通过对广州气温距平和Nino 3、Nino 1+2区SSTA序列做小波变换,研究了广州气温变化与ENSO振荡过程之间的多尺度联系,发现它们都存在着强的十年际振荡。年际尺度的振荡为正相关,十年际风度为负相关。由于SSTA的十年际变率是由强厄尔尼诺事件的韵律产生的,因此;广州气温对强烈厄尔尼诺的响应性质上不同于对普通厄尔尼诺的响应。

Abstract:

An investigation of the multiscale relationship of temperature anomaly in Guangzhou to EI Nino is conducted through the agency of Wavelet transforming of the time series of Nino 3 and Nino 1+2 SSTAs and Guangzhou temperature anomaly, respectively. It is show that they all experience strong interdecadal oscillation. On the basis of interannual scale the temperature anomaly in Guangzhou is in positive relation to the EI Nino SSTAs as composed to the negative relation between them if based on interdecadal scale. In view of the fact that the rhythm of robust E1 Nino events is responsible for the interdecadal variability of SSTA, the response of temperature in Guangzhou to the violent E1 Nino events is thus different in character from the counterpart to the normal ones.