基于Argo、XBT数据的苏拉威西海温盐特征分析  

Analysis of T/S characteristics of Sulawesi Sea based on Argo and XBT

作　　者：张春玲 司文 谢春虎 ZHANG Chunling;SI Wen;XIE Chunhu(College of Marine Sciences,Shanghai Ocean University,Shanghai 201306,China;College of Oceanic and Atmospheric Sciences,Ocean University of China,Qingdao 266100,China)

机构地区：[1]上海海洋大学海洋科学学院,上海201306 [2]中国海洋大学海洋与大气学院,山东青岛266100

出　　处：《海洋通报》2021年第1期27-36,共10页Marine Science Bulletin

基　　金：农业部远洋与极地渔业创新重点实验室开放基金(A1-0203-00-2017-1)。

摘　　要：综合利用Argo温、盐度观测剖面资料,以及中国南极科学考察时沿途获取的XBT温度剖面,分析探讨了苏拉威西海域(117°E-127°E,0°-8°N)上表层温度和盐度的气候态分布和变化特征。结果表明,苏拉威西海域的温度范围约为2.5℃~30℃,盐度约为33.2‰~35.1‰。与垂向变化相比,温、盐度水平梯度均较小,温度随深度的增加逐渐降低,而盐度则呈现先增后减再增,两低一高的分布特征。整个海域表层呈现出高温低盐的分布特征,次表层温度稍有降低,盐度增加,中层则表现为高温高盐,500 m以深区域温、盐度趋于均匀,底层呈现低温高盐的特性。50~150 m深度处,存在明显的温跃层,夏季(7-9月)跃层深度小于90 m,冬季(1-3月)跃层深度平均约为110 m,而4月份的观测剖面表现出的温跃层深度明显比11月份深,苏拉威西海域中部的温跃层相对也较深。The climate distribution and variation characteristics of temperature and salinity in the upper surface layer of the Sulawesi Sea(117°E-127°E,0°-8°N)were analyzed using Argo T/S profiles of 0~1500 m and XBT temperature profiles obtained by Chinese Antarctic scientific investigations.The results show that the temperature and salinity are about 2.5~30℃and 33.2‰~35.1‰respectively in the Sulawesi Sea.Compared with the vertical changes,the T/S horizontal gradients are smaller.The temperatures gradually reduce with the increase of the depth.The salinities increase firstly,and then decrease,increase finally with the increase of depth.There are two lower and one higher salinity areas.The whole ocean surface shows the characteristics of high temperature and low salinity.The subsurface temperature is slightly lower with increasing salinity.Middle depths are characterized by high temperature and high salinity.At the depth of 500 m,the temperature and salinity tend to uniform.And at the bottom,represent lower temperature with higher salinity.Moreover,there exists an obvious thermoclineat the depth of 50~150 m.The thermocline depth in summer is less than 90 m while about 110 m in winter.The thermocline exists in the deeper depth in April than that of November by XBT observation sections.In the central of Sulawesi Sea,the thermocline is also relatively deeper.

关 键 词：苏拉威西海 温盐特征 ARGO XBT 

分 类 号：P731.1[天文地球—海洋科学]