Secondly , the correlations between el nino southern oscillation ( enso ) with the temperature and precipitation during the recent 50 years in heilongjiang are analysed by the bivariate wavelet transformation applying marr wavelet function . and some comparisons are made by applying both bivariate wavelet transformation and fourier cross spectral methods to the data 其次,选取marr小波函数,采用交叉小波变换方法分析了近50年来黑龙江省气温和降水与nino3区海温和南方涛动指数的相关关系,并与传统的交叉谱分析结果进行了对比分析。
The results show that the correlations between e1 nino and the temperature and precipitation in heilongjiang province have multi - time scale characteristics ; ( 1 ) the correlations between sst in nino3 and temperature in heilongjiang province are negative as a whole , but their correlations are evidently different according to different time scales ; the correlations between the temperature and southern oscillation index ( soi ) are positive in annual - scale periodic changes and negative in decades periodic changes 结果表明,厄尔尼诺事件与黑龙江省气温和降水之间的相关具有多时间尺度的特征;黑龙江省的气温与nino3区海温总体上表现为负相关关系,但是对于不同时间尺度,两者的相关关系又有明显的差异;与南方涛动指数在年际尺度周期上表现为正相关,年代际尺度周期上表现为负相关关系。