区域大气环境预测确定场区长度的新方法  

A NEW METHOD OF DETERMINATION THE REGION FIELD LENGTH ON THE FORECAST OF ATMOSPHERIC POLLUTION

作　　者：程水源[1] 蒲恩奇[1] 刘德政 杨智明 

机构地区：[1]河北轻化工学院环境工程系 [2]唐山市环保局 [3]河北省环境保护局

出　　处：《环境科学进展》1995年第3期66-71,共6页

摘　　要：本文在两种新的大气污染预测方法基础上,对场区长度进行了研究和分析。采用不同场区长度预测石家庄市区 SO_2的长期平均浓度,和实测值比较发现,用区域风向频率加权平均值法确定的场区长度给预测结果带来的误差最小,从而验证了用本方法确定的区域场区长度在大气环境预测中的实用性。In this article the field length was studied and anatyzed based on two kinds of new methods of the forecast of atmospheric pollution.The average SO_2 concentrations in atmo- sphere for a long term period in Shijiazhuang city have been forecasted with different kinds of field length.By comparing the calculating concentrations with monitoring values,it were discovered that minimum errors of forecasting results are produced by the field length used which is obtained by the means of weighting plus average value according to wind direction frequency.Therefore it was proved that the region field length gotten by the above means is available in the forecast of atmospheric environment.

关 键 词：场区长度 大气环境 风向频率 空气污染 

分 类 号：X510.2[环境科学与工程—环境工程]