亚丁湾海域Argo浮标资料分析

Analysis of Argo buoy data in the Gulf of Aden

为更好地掌握亚丁湾海域海洋水文环境的特征规律,利用Argo(array for real-time geostrophic oceanography)全球海洋实时观测网计划提供的海洋上层温盐剖面资料,结合水团和跃层统计分析方法,得出了该海域的海水温盐结构及海流特征规律。结果表明,索马里流沿索马里-阿拉伯半岛海岸由西南向东北流,在索马里东岸常年存在很强的顺时针流涡;该海域水体结构可分为表层高温低盐水、次表层次高温高盐水、中层低温低盐水、深层低温低盐水,500 m以深为均匀水团,上升流使得200 m以上水层海温存在双峰结构。

In order to better grasp the characteristics and laws of the marine hydrological environment in the Gulf of Aden,using the upper ocean temperature and salinity profile data provided by Argo(array for real-time geostrophic oceanography)Global Ocean real-time observation netw ork plan,combined with the statistical analysis method of water mass and thermocline,the seawater temperature and salt structure and current characteristics in the Gulf of Aden are obtained.The results show that the Somali current flow s from southw est to northeast along the coast of Somalia Arabian Peninsula,and there is a strong clockwise vortex on the east coast of Somalia all year round;The water structure of the sea area can be divided into surface with high temperature and low salt water,sub surface with high temperature and high salt water,middle layer with low temperature and low salt water,deep layer with low temperature and low salt water.500 m deep is a uniform water mass,and the upw elling makes the sea surface temperature of the water layer above 200 mhave a double peak structure.