反厄尔尼诺事件的个例分析  

AN ANALYSIS OF AN EXAMPLE FOR LA NINA EVENT

作　　者：李若钝[1] 邹娥梅[1] 孙瑞本[1] 刘丽惠[1] 

机构地区：[1]国家海洋局第一海洋研究所,青岛266003

出　　处：《热带海洋》1993年第2期9-16,共8页

摘　　要：根据“中美热带西太平洋海-气相互作用联合考察”1—8航次考察资料、美国NOAA、日本气象厅及我国国家气象中心气候资料室提供的SST、水位和风场等资料,对1988—1989年反厄尔尼诺事件(La Nina)形成及发展过程和热带西太平洋海洋上层热结构的相互变化作了综合分析。文章指出在La Nina事件期间,热带太平洋的海、气参数均发生了相应的变化。热带西太平洋温跃层及热含量(0—150m)作出的响应,显示出当La Nina增强时,温跃层下降,热含量增加;La Nina盛期时,温跃层最深,热含量最大;La Nina减弱时,温跃层上升,热含量减小。它们与厄尔尼诺事件(El Nino)的关系则恰好相反。In this paper, based on hydrographic observational CTD data obtained from eight cruises of US/PRC air-sea interaction joint study on the western tropical Pacific, SST . data provided by NOAA, as well as sea level data provided by Dr. Wyrtki of Hawaii U-niversity and wind field data provided by the climate data office of the National Meteorological Center, the genesis and evolution of 1988-1989 La Nina event are described and the corresponding variations of upper ocean thermal structure in the western tropical Pacific are also depicted. It is pointed out that during the 1988-1989 La Nina year, the air and sea parameters in the western tropical Pacific anomalously changed. The thermo-cline and heat content (0-150×102hPa) made good response to this event, that is, the thermocline depressed and heat content increased when La Nina event developed, the deepest thermocline and highest heat content occurred in the mature stage of 1988-1989 La Nina event,and the thermocline rose, heat content decreased when the La Nina event weakened, which is different from the El Nino event.

关 键 词：海洋 反埃尔尼诺 温跃层 热含量 

分 类 号：P732.6[天文地球—海洋科学]