大气质量评价上海指数法的改进及应用

Improvement and Application of One Air Quality Assessment Method

该研究将模糊数学应用于上海指数法 ,在评价函数中引入半梯形隶属函数和倍斜率隶属函数 ,提出模糊上海指数法 ;将此法应用于延安市的大气质量评价工作 ,与欧几里德贴近度法和上海指数法的评价结果进行比较表明 ,模糊上海指数法的评价结果是科学合理的。并利用地理信息系统 Mapinfo制作出基于地理信息的城市大气质量评价图 ,使评价结果可视化 ,地图化。

WT5”BZ]This research applies fuzzy mathematics to Shanghai exponential method and puts forward the fuzzy Shanghai exponential method which introduces the semi trapezoidal membership function and the multiple slope membership function to the evaluation function.This method is used in the air quality assessment of Yan’an City and compared with Eulidean Degree of Similarity Method and Shanghai exponential method.The evaluation result indicates that fuzzy Shanghai exponential method is appropriate and credible.This paper also draws the geographic information based air quality assessment map using geographic information system mapinfo to make the assessment result visible and mapable.