摘要
本文应用统计学上的带通滤波方法,对COADS资料集中的热带海表温度资料以及大气环流资料(500hPa高度场)进行了处理,使处理后的资料只保留3—4年周期变化的信息。由此计算了海温和高度场之间的时滞相关场,并分析了相关系数的时间经度和时间纬度剖面图,从而对东、中和西太平洋热带海表温度与大气环流之间的相互作用,揭露了一些有意义的现象。作者认为大尺度海气相互作用是复杂的,它依赖于信号的时间尺度以及海洋加热(或冷却)的地理位置。
By using a band-passed techniqe and statistical analysis, it was filtered SST in the tropical Pacific Ocean from COADS data set and 500 hPa height field in order to extract information with 3-4 year period. Lagged correlation fields between SST and height field are calculated, and time-longitude and time-latitude cross-section of the correlation coefficients are analysed. Some meaning phenomena of interaction between SST in the tropical East, Middle and West Pacific and the atmospheric circulation are found. It is believed that the large scale sea-air interaction is complex, and depends on its time scale and geographic location of ocean heating (or cooling).
出处
《气象学报》
CSCD
北大核心
1992年第3期272-278,共7页
Acta Meteorologica Sinica
