Research on Quantitative Relativity between Average 10-days Air Temperature and Ground Elevation Based on Focal Analysis of DEM
Supported by ArcGIS software, adopting focal analysis and correlation analysis methods, using 10-days air temperature, based on digital elevation model(DEM), relativity between average 10-days air temperature during 1997-2006 and ground elevation in Heilongjiang Province has been work out. The results show that there are higher relativity between average 10-days air temperature and ground elevation but different correlation coefficients in each 10-days period, representing larger correlation coefficients between average 10-days air temperature and the function value of elevation mean within approximate 50 km radius of focal neighborhood and those in crop grow periods are greater than that in other periods. All maximal correlation coefficients all 10 days are between -0.4889-0.8209 with an average of-0.6905. The result of this study has a great significance to air temperature interpolation in the course of agro-climatic resources research.
Heilongjiang Province air temperature DEM focal analysis correlation analysis GIS
Fenghai Yang Yun Li Yini Ge Yuanyuan Ju Weihong Du Xinxin Guo
NorthEast Agricultural University, Harbin 150030
国际会议
哈尔滨
英文
428-434
2010-09-10（万方平台首次上网日期，不代表论文的发表时间）