摘要
在大气颗粒物源解析领域中,在一套数据中由于选择不同的拟合源和拟合组分,CMB模型会产生多个解析结果。提出了"NKCMB最优拟合法",解决现存的CMB模型在所限定的条件内不能穷举所有的解析结果以及在众多的结果中人工择优的局限等问题。基于"NKCMB最优拟合法"和美国环保总署提供的EPA-CMB8.2软件开发了NKCMB3.0软件。使用美国环保总署提供的测试数据进行的对比试验证明,"NKCMB最优拟合法"能够找到比EPA-CMB8.2的"Best Fit"更优的源解析结果。
In the source apportionment field of atmospheric particulate matter,Chemical mass balance(CMB) model regularly gives out multi-results when choosing different species and sources from the same data set.The issues are that how to find all potential results automatically, and how to choose the best result automatically among those multi-results.The"NKCMB Best Fit"method was introduced to supply the gaps of current CMB models.A new CMB softwareNKCMB3.0 was developed based on"NKCMB Best Fit"and USEPA-CMB8. 2.Test data provided by USEPA was employed to evaluate the performance of two models.It indicates that the"NKCMB Best Fit"approach of NKCMB30 can give better result than the"Best Fit"approach of EPA-CMB8.2.
出处
《南开大学学报(自然科学版)》
CAS
CSCD
北大核心
2010年第1期71-75,共5页
Acta Scientiarum Naturalium Universitatis Nankaiensis
基金
国家环境保护公益性行业科研专项(200709048
200709013)
作者简介
赵宏(i967-),女,山东济南人,副教授,主要从事计算机在环境科学中的应用研究.