黄海表层溶解氧时空分布特征

发布时间：2018-01-02 20:45

本文关键词：黄海表层溶解氧时空分布特征　出处：《海洋环境科学》2017年02期 　论文类型：期刊论文

更多相关文章： 溶解氧 营养盐 表观耗氧量 相关性

【摘要】：本文基于1960~1997年期间黄海表层溶解氧(DO)数据,研究了不同时期DO时空变化规律。结果表明:表层DO月均值呈现出一致的变化规律,DO最高值(6.73 m L/L)出现在3月,最低值出现在8月(4.90 m L/L);不同时期季节变化规律为:春季冬季夏季秋季。就整个研究阶段而言,DO年际变化趋于稳定;在空间分布上,表层DO也呈现出明显的季节变化特征,总体呈现出北高南低,近岸高于远海的分布特征。冬,春季节因受黄海暖流影响具有相似的分布特征;夏,秋季节因太阳辐射和黄海环流的影响分布特征相似;表层DO与海表温度负相关,随PO_4-P、NO_3-N和SiO_3-Si浓度增大而上升。表观耗氧量(AOU)在整个研究阶段均值为-0.06 m L/L,呈现基本平衡状态。
[Abstract]:Based on the do data of Huang Hai from 1960 to 1997, the temporal and spatial changes of do in different periods are studied. The results show that the monthly mean value of do in surface layer is consistent. The highest value of do (6.73 mL / L) appeared on March, and the lowest value appeared in August (4.90 mL / L). The seasonal variation in different periods is as follows: spring, winter, summer and autumn. The interannual variation of do tends to be stable in the whole study stage; In the spatial distribution, the surface do also presents the obvious seasonal variation characteristic, generally presents the north high south low, the near shore is higher than the far sea distribution characteristic, the winter, the spring season is affected by Huang Hai warm current has the similar distribution characteristic; The distribution characteristics of solar radiation and Huang Hai circulation in summer and autumn are similar. The surface do was negatively correlated with sea surface temperature (SST) with PO_4-P. The concentration of NO_3-N and SiO_3-Si increased, and the average of apparent oxygen consumption was -0.06 mL / L, which showed a basic equilibrium state.
【作者单位】：山东大学(威海)海洋学院;
【基金】：国家自然科学青年基金项目(41206166) 威海市科技发展计划项目(2014DXGJ36) 山东大学自主创新基金(2013ZRQP005)
【分类号】：P734.22
【正文快照】： mum(6.73 m L/L)and minimum(4.90 m L/L)values occurring in March and August,respectively;the seasonalvariations during different periods all followed the order SpringWinterSummerAutumn.The annual variationin surface DO presented stable trend over the d

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