摘要
将信息可视化平行坐标方法与水环境质量分析相结合,以海水水质指标分级标准,提高水质指标总体水平与所属等级表达的直观性:首次建立了海洋水环境质量可视化分析的平行坐标方法;结合云理论和集对分析方法两者的优点,建立了具体的水环境质量评价方法与系统的评价步骤,该方法不仅具有集对分析方法简洁、易操作和高精度等优点;同时云理论的应用使得评价指标隶属于等级的随机性和模糊性得以充分体现。文中采用平行坐标和云理论与集对分析相耦合的评价方法,研究并分析了近10 a天津近岸海域水环境质量状况。结果表明:天津近岸海域水环境质量较差,氮磷富营养化现象较为严重;基于平行坐标的环境可视化分析方法具有简洁、直观等优点;云理论与集对分析相耦合的评价方法集合了两者的优点,可以准确可靠地应用于水环境质量评价。
Combining the parallel coordinate method of information visualization with the marine environ-mental quality visualization analysis ,taking sea water quality index as class standard and the improvement of water quality index and the intuitive characteristic of index level ,the paper first all established the par-allel coordinate method of visualization analysis for the marine environmental quality .It set up the detailed and systematic assessment method and procedure for water environmental quality by combining set pair a -nalysis method with cloud theory .The method has no only the advantages of concision , easy-operation and high precision of set pair analysis method but the randomness and ambiguity of assessment indexes 'membership can be reflected in the assessment procedure by using cloud theory .This paper used the com-bination of parallel coordinate , the coupled assessment method of cloud theory and set pair analysis ,and applied to analyze and evaluate the water environmental quality near the shore of Tianjin district in recent ten years.The result showed that the water environmental quality is poor and the eutrophication phenome -non is serious by nitrogen and phosphate near the shore district of Tianjin .The visualization analysis method with parallel coordinate has some advantages of concision and perceptual intuition .The method collected the advantages of two methods and can be applied to water environmental quality assessment ac -curately and reliably .
出处
《水资源与水工程学报》
2015年第3期35-40,共6页
Journal of Water Resources and Water Engineering
基金
国家自然科学基金项目(51209110)
天津市科技兴海项目(KJXH2011-17)
中央级公益性科研院所基本科研业务费专项资金项目(TKS130215
KJFZJJ2011-01)
关键词
水环境
平行坐标
云理论
集对分析
可视化
水环境评价
water environment
parallel coordinate
cloud theory
set pair analysis
visualization
assessment of water environment
