137°经向断面温、盐度的年际变异  

Interannual variations of temperature and salinityat the 137°E section

作　　者：顾玉荷[1] 孙湘平[2] 胡敦欣[1] 

机构地区：[1]中国科学院海洋研究所,青岛266071 [2]国家海洋局第一海洋研究所,青岛266003

出　　处：《海洋学报》1999年第6期9-16,共8页

基　　金：国家重点基础研究发展规划!G1998040900

摘　　要：系统地分析了１３７°Ｅ断面温、盐度的多年变化，主要结果为：（１）１３７°Ｅ断面１００ｍ层温度，在低纬度海域于某些年份出现异常低温，此现象可能与厄尔尼诺事件有关；指出棉兰老冷涡的存在是造成该断面于６°～８°Ｎ附近出现低温的主要原因．（２）厄尔尼诺期间，冬季１３７°Ｅ断面上２８℃等温线所在纬度小于其多年平均值．（３）冬季１３７°Ｅ断面上次表层高盐水可划分为强型、次强型、中等型和弱型４种类型．- Multi-year variations of temperature and satinity at the 137°E section are analysed systematically. Main results are asfollows: (1) In the 100 mlayer, an anomalous low temperature occurred in certain areas of the low latitude in certain years, whichis relative to the EI Nino event. Analyses also show that the existence of the Mindanao eddy is main reason causing the low temperature occurring near area of 6°-8° N at the 137° E section. (2)During EI Nino, the range surrounded by 28 ℃ isotherm in winteris less than its multi-year averaged value. (3)The subsurface high-salinity water in winter can be classified into four types: strong,subetroug, middle and weak.

关 键 词：断面 海水 温度 盐度 年际变化 

分 类 号：P731.11[天文地球—海洋科学] P731.12