The API Spatial and Temporal Change Analysis of Key Environmental Protection Cities in China Based on EOF
In this paper, monthly averaged API index data from August 2006 to September 2009 of the 86 key environmental protection cities in China were broken down into several fields and their time functions by the Empirical Orthogonal Function (EOF) method, and the temporal and spatial distribution characteristics of API were analyzed. It was shown that the regional differences of API were significant among major Chinese environmental protection cities, and the 86 key cities may be divided into 8 areas. The analysis by the EOF could effectually reflect the spatial-temporal distinctly differences of API distributions, which may provide new methods and ideas to study regional situations of air pollution.
Liu Bai-qiao Liao Shan-yun
Urban and Environmental Science CollegeTianjin Normal UniversityTianjin, China
国际会议
成都
英文
1-3
2010-06-18(万方平台首次上网日期,不代表论文的发表时间)