中国区域地理_地形因子对降水分布影响的估算和分析.pdfVIP

50 6 Vol. 50, No. 6 2007 11 CHINESE JOURNAL OF GEOPHYSICS Nov. , 2007 , , . . , 2007, 50( 6) : 1703~ 1712 Shu S J, Wang Y, Xiong A Y. Estimation and anal sis for geographic and orographic influences on precipitation distribution in China. Chinese J . Geop hys . ( in Chinese) , 2007, 50( 6) : 1703~ 1712 1 1 * 2 舒守娟 , 王 元 , 熊安元 1 , 210093 2 , 100081 , . 394 2000 45 ( ) , ( ) , , . , 70% , 084 , , . , , . , , , 0001- 5733( 2007) 06- 1703- 10 P426 2006- 12- 11,2007- 08- 05 Estimation and analysis for geographic and orographic influences on precipitation distribution in China 1 1* 2 SHU ShouJuan , WANG Yuan , XIONG AnYuan 1 Key Laboratory of Mesoscale Severe Weather of Ministry of Educati on, Dep artment of A tmosp heric Sciences , Nan ing University , Nan ing 210093, China 2 Climatic D ata Center , N ati onal Meteorological Inf ormation Center , China Met eorological Administration , Bei ing 100081, China Abstract Different from the framework of multiple linear regression based on least square method, this paper tries to appl a novel secondgeneration regression method based on partial leastsquares to precipitation estimation in China for the first time. The 45 r precipitation data from 394 meteorological stations in stud area are used. Several simple formulae used to estimate the annual mean and seasonal precipitation have been obtained, and the characteristics of the geographic or topographic effects