山东省公路气候区划数据可用性分析  

Analysis of Data Usability for Highway Climate Zoning in Shandong Province

作　　者：牛玉欣[1] 许金良[1] 袁春建[1,2] 

机构地区：[1]长安大学公路学院,西安710064 [2]山东省交通厅公路局,济南250002

出　　处：《武汉理工大学学报》2010年第24期90-93,共4页Journal of Wuhan University of Technology

摘　　要：采用ArcGIS 9.3提供的数据检验功能,对公路气候区划数据进行可用性分析,以提高公路气候区划结果的准确性。以山东省的年平均地表温度为例,提出用直方图和Voronoi图相结合的方法查找并确定数据的离群值,采用直方图、半变异/协方差函数云图等分析剔除离群值之后数据的分布规律和特征。分析结果表明:研究数据存在离群值现象,离群值剔除处理后,数据能较好地反映山东省年平均地表气温的全局趋势,服从正态分布,具有空间相关性,符合地统计学中数据插值的要求,数据是可用的。In order to improve the accuracy of climate zoning for highway construction,the usability of data for the climate zoning is analyzed based on the data verification function of ArcGIS 9.3.Take the annual mean surface air temperature of Shandong province for example,the combined method to find and identify the outliers is proposed by using histogram and Voronoi map.The distribution and characteristics of excluding outliers data are discussed though histogram,semivariogram/covariance cloud and so on.The results indicate that the research data contain outliers.However,the excluding outliers data,distributed normally,with spatial correlation,can reflect the trend of annual mean surface air temperature in Shandong province.So the data is usable for the geostatistics theory.

关 键 词：公路 气候区划 数据检验 地统计 可用性 

分 类 号：U491.2[交通运输工程—交通运输规划与管理]