摘要
比较分析了热带和热带外太平洋海气系统年际和年代际变化特征。在海气系统异常的方差构成中,北太平洋区域以年代际异常为主,热带太平洋区域年际和年代际异常相当;表(浅)层海洋与大气的年代际变化特征对同一季节、区域是一致的,且20世纪70年代后期到80年代初均发生由低模态向高模态的转变;北太平洋区域的7月与此不同,这与该季节近表层海温层结稳定有关;年际尺度的海、气异常与ENSO有关,且以热带太平洋区域1月最典型,7月次之,北太平洋区域1月再次之,7月无明显关系。
The comparison of the interdecadal and interannual characteristics of the atmosphere-ocean system between the tropical and extratropical Pacific is made in this paper. Results show that the interdecadal anomalies are more significant in the variance of the system anomaly in the North Pacific （ NP ）, and the interannual and interdecadal anomalies are about equivaleut in the tropical Pacific （TP} ;the interdecadal change characters of the surface （ shallow ） layer of the ocean and the atmosphere aloft are unanimous in the same season and region, and their transition from a low mode to a high mode both occurred from the end of 1970s to the beginning of 1980s,with an exception for July in the NP,which is related to the stability of the stratification of sea temperature within the sub-surface layer;the interannual scale air-sea anomalies are associated with ENSO, which is most typical for January, then July in the TP, followed by January in the NP, and there is no visible relationship for July in the NP.
出处
《南京气象学院学报》
CSCD
北大核心
2006年第2期189-195,共7页
Journal of Nanjing Institute of Meteorology
基金
国家自然科学基金资助项目(40136010)
国家自然科学基金资助项目(90211010)
关键词
太平洋
海气相互作用
年际和年代际异常
Pacific region
air-sea interaction
interdecadal and interannual anomalies
