一百多年来ENSO事件分类和ENSO循环研究

THE CLASSIFICATION OF ENSO EVENTS OVER RECENT ONE HUNDRED PLUS YEARS

根据1956—1990年期间两类ENSO事件的循环规律，提出了用SOI资料对历史。上ENSO事件定义和分类的方法。对1882年以来ENSO事件分类结果表研，一百多年来共出现25次较强的EINino事件，其中13次中部型，12次东部型，21次较强的LaNina事件，其中13次东部型，8次中部型。分析结果还指出一百多年来46次较强ENSO事件循环中，有25次是相反位相ENSO事件之间的直接转换，产生25次东部型ENSO事件；有20次是相反或相同位相ENSO事件之间的缓慢转换，产生20次中部型ENSO事件。

Based on the regularity of ENSO cycle from 1956 to 1990, a new method for the classification of ENS0 events using SOI data is proposed. The results of classification of ENSO events for the period from 1882 to 1997 show that there were 25 stronger EL Nino events including 13 Eastern pattern and 12 Central pattern events, and 21 stronger La Nina events, including 13 Eastern pattern and 8 Centralpattern events. The results also show the Oceanic model of ENSO cycle, which indicates that of the total of 46 ENSO events over the past one hundred plus years, 25 Eastern pattern ENSO events were converted directly from ENSO events with the opposite phase and 20 Central pattern ENSO events were conyerted slowly from ENSO events with the opposite or the same phase.