海洋岛附近海域春季海洋水文测量结果分析

利用2006年4月在海洋岛附近海域的CTD测量资料,系统分析了该海域温度、盐度、密度和声速的平面分布和垂直分布特征,并探讨了其形成机理。分析指出:4月份是海洋岛附近海域季节性跃层的生成期,海区会产生正跃层、逆跃层、冷中间层、暖中间层等复杂的垂直结构;中间层和底层水文要素受海流的影响较大,而表层水文要素主要受海面风场和气温的影响。

Analyses of Hydrologic Data of the Sea Area Around the Haiyang Island in Spring

Using the CTD data in April of 2006 obtained by Dalian Naval Academy in the sea around the Haiyang Island,the horizontal and vertical structures of temperature,salinity,density and sound velocity of sea water are analyzed systematically and their form mechanism are discussed.With analysis it is pointed out that its sound velocity structure is similar to temperature and the density structure is similar to salinity in April.The seasonal spring layer in the sea is formed in April and there are all kinds of vertical structures such as positive spring layer,negative spring layer,warm middle layer and cold middle layer.The vertical structure of water temperature,salinity,density,or sound velocity on the middle and bottom layers is relevant tightly to the ocean current,and their structure in the upper ocean is mainly controlled by the wind and atmosphere temperature over the ocean surface.