渤海环流对近岸海域无机氮分布特征的影响  

Influence of Circulation on the Distribution Characteristics of Inorganic Nitrogen in the Bohai Coastal Sea

作　　者：刘喜惠[1] 刘方[1] 丁页[1] 李曌[1] 李翔宇[3] 卢勇夺[2] LIU Xihui;LIU Fang;DING Ye;LI Zhao;LI Xiangyu;LU Yongduo(State Environmental Protection Key Laboratory of Quality Control in Environmental Monitoring,China National Environmental Monitoring Centre,Beijing 100012,China;National Marine Environmental Forecasting Center,Beijing 100081,China;Dalian Environmental Monitoring Centre,Dalian 116023,China)

机构地区：[1]中国环境监测总站,国家环境保护环境监测质量控制重点实验室,北京100012 [2]国家海洋环境预报中心,北京100081 [3]大连市环境监测中心,辽宁大连116023

出　　处：《中国环境监测》2019年第6期78-84,共7页Environmental Monitoring in China

摘　　要：基于2017年渤海近岸海域无机氮监测数据和HYCOM数值模拟结果,分析了渤海环流对无机氮污染分布特征的影响,结果表明渤海无机氮的空间分布特征与其环流结构密切相关:受渤海环流的影响,在春、夏、秋季,无机氮含量高值区呈现不同的强度和范围;在辽东湾,与春季相比,夏季环流结构与春季相反、速度大于春季,盘锦、营口近岸海域夏季无机氮污染范围缩小、含量降低,在锦州近岸海域亦出现高值;在渤海湾、莱州湾,与春季相比,夏季和秋季无机氮含量高值区范围缩小,无机氮含量等值线均随环流向高值中心扩展。Based on the monitoring data of inorganic nitrogen in coastal waters of the Bohai Sea in 2017 and the numerical simulation results of HYCOM,the influence of circulation on the distribution characteristics of inorganic nitrogen pollution was analyzed.The results showed that the spatial distribution characteristics of inorganic nitrogen in the Bohai Sea were closely related to its circulation structure.Under the influence of the Bohai Sea circulation,in the spring,summer and autumn,the high value areas of inorganic nitrogen content showed different strengths and ranges.In Liaodong Bay,compared with spring,the summer circulation structure was opposite to that of spring and the speed was greater than that of spring.In the Panjin and Yingkou coastal waters,the range of inorganic nitrogen pollution in summer was reduced and the content was reduced,and there was also a high value in the coastal waters of Jinzhou.In the Bohai Bay and Laizhou Bay,compared with spring,the range of high inorganic nitrogen content in summer and autumn was narrowed,and the inorganic nitrogen content contours all expanded with the circulation to the high value center.

关 键 词：渤海 环流 近岸海域 无机氮 

分 类 号：X824[环境科学与工程—环境工程]