季节变化对黄渤海表层叶绿素浓度分布影响的数值分析

发布时间：2018-04-14 17:01

本文选题：海洋生态模型 + 水动力　；参考：《应用基础与工程科学学报》2017年04期

【摘要】：为了研究黄渤海表层叶绿素周期变化物理过程的环境影响因素,基于区域海洋模型系统(Regional Ocean Modeling Systems,ROMS),建立黄渤海海域的三维生态数值模型.模型通过已发表的相关结果和遥感观测数据等方式对比验证,模拟海域动力过程中生态因子叶绿素浓度的时空分布特征和季节性变化过程.结果表明:黄渤海水体表层叶绿素的生长消亡与水体环境条件密切相关,径流的影响只引起局部海区生态系统的调整;叶绿素浓度分布存在明显季节性变化的特征,季节温度变化和海水层化热分层结构是重要影响因素,且呈现物理过程的周期性变化;表层浮游植物季节性分布的双峰结构特征理论上与季节性层化理论相符合.模型可对海域生境季节变化规律和生态保护研究提供科学数据.
[Abstract]:In order to study the environmental influence factors of the physical process of the periodic variation of chlorophyll in the surface layer of the Yellow Sea and Bohai Sea, a three-dimensional ecological numerical model of the Yellow Sea and Bohai Sea was established based on the Regional Ocean Modeling Systems (ROMS) system.The model was compared with the published results and remote sensing data to simulate the temporal and spatial distribution and seasonal variation of chlorophyll concentration of ecological factors in the dynamic process of sea area.The results show that the growth and extinction of chlorophyll in the surface layer of the Yellow Sea and Bohai Sea are closely related to the environmental conditions of the water body, and the influence of runoff only causes the adjustment of the ecosystem in the local sea area, and the distribution of chlorophyll concentration has the characteristic of obvious seasonal variation.Seasonal temperature variation and stratified structure of seawater stratification heat are important factors, and present periodic changes of physical processes, and the bimodal structure characteristics of seasonal distribution of surface phytoplankton are in agreement with seasonal stratification theory.The model can provide scientific data for the study of seasonal variation of sea habitat and ecological protection.
【作者单位】：大连理工大学海岸和近海工程国家重点实验室;国家海洋环境监测中心国家海洋局近岸海域生态环境重点实验室;
【分类号】：X145

【相似文献】