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基于2006年夏季对南黄海调查所得的溶解氧(DO)资料,重点分析了DO的分布特征及影响因素。结果表明,2006年夏季南黄海DO的浓度范围为1.36～10.36 mg/L,平均值为7.21 mg/L;DO的水平分布趋势主要受控于环流结构,水体层化和生物化学作用明显影响着夏季南黄海西南部海域和冷水团范围内的DO含量,同时温度也是影响石岛外海、苏北近岸和海州湾东南部-苏北浅滩外侧DO含量的主要因素;从DO的垂直分布来看,30 m层的DO浓度最高,这是DO垂直分布最大值现象的具体表现,而且DO断面分布存在四种典型的类型。总体来看,南黄海西南部底层DO低值现象和受黄海冷水团影响的外海层化区存在的DO垂直分布最大值现象是调查海域DO分布的两个最显著的特征。
Based on the dissolved oxygen (DO) data from the Southern Yellow Sea survey in the summer of 2006, the distribution characteristics and influential factors of DO are analyzed. The results showed that the concentrations of DO in the southern Yellow Sea in summer 2006 ranged from 1.36 to 10.36 mg / L with an average value of 7.21 mg / L. The horizontal distribution trend of DO was mainly controlled by the circulation structure, and stratification and biochemistry significantly affected The DO content in the southwestern South Yellow Sea and the coldwater mass in the summer are also the main factors that affect the DO content of the outer shores of Shidao offshore, northern Jiangsu coast and southeastern Haizhou Bay - northern Jiangsu coast. From the vertical distribution of DO The DO concentration at the 30 m layer is the highest, which is the concrete manifestation of the maximum vertical distribution of DO. There are four typical types of DO profiles. Overall, the phenomenon of DO DOI value in the southwestern South Yellow Sea and the DO vertical distribution maximum in the outer sea-stratified zone affected by the Yellow Sea cold water mass are the two most notable features of the DO distribution in the study area.