摘要
采用1985年东海断面调查资料,分析了本海域夏季海水表观耗氧量的时空分布特征。结果表明,表现耗氧量的水平分布为表层南高北低、沿岸低外海高;底层为南高北低、沿岸高外海低。垂直分布为上低下高,长江口及杭州湾外面,垂直变化梯度较大。受黄海冷水影响的区域存在温、密跃层;在跃层中部表观耗氧量出现极小值。其季节变化一般为8月最高,5月最低,大部分测站的表观耗氧量与各水化要素的相关性均较好。
Based on the observations in the East China Sea in 1985,the distribution of AOU (apparent oxygen utilization) in the area during summer has been studied in this paper.It is revealed tht,in the surface layer,AOU is higher in the south than in the north and higher in the outer sea than along the coast,as is in completely reverse order in the lower layer.Asfor the vertical distribution of AOU,it is lower in the upper layer thanin the lower layer and the vertical variation gradient is large near theestuary of the Yangtze River and Hangzhou Bay.There is a thermocline in the surveyed area influenced by,the Yellow Sea cold water mass and AOU value reaches minimum in the middle of the thermocline.AOU value becomes highest in August and the lowest in May.A good correlativity with different chemical elements is obtained at most stations,
出处
《海洋通报》
CAS
CSCD
北大核心
1991年第4期33-37,共5页
Marine Science Bulletin
