四川省山洪灾害时空分布规律及其影响因素研究

熊俊楠, 赵云亮, 程维明, 郭良, 王楠, 李伟

Temporal-spatial Distribution and the Influencing Factors of Mountain-Flood Disasters in Sichuan Province

XIONG Junnan,ZHAO Yunliang,CHENG Weiming,GUO Liang,WANG Nan,LI Wei

表1 历史山洪灾害点重心及标准差椭圆参数变化

Tab.1 Variation of gravity center and standard deviation of elliptical parameters in historical mountain-flood disaster

年代(s) (x,y) S/(km) R/(°) X(std/km) Y(std/km) 1950 (104°06'E 29°52'N) 0 31.286 165.428 131.502 1960 (104°16'E 30°15'N) 44.957 27.733 214.612 120.166 1970 (103°55'E 29°51'N） 54.981 30.037 326.437 151.235 1980 (104°26'E 30°10'N） 59.511 45.449 258.547 161.959 1990 (104°07'E 29°41'N） 61.440 39.051 281.271 181.354 2000 (104°37'E 29°51'N） 50.985 45.945 358.121 205.776 2010 104°42′E 30°30′N 73.633 51.348 281.190 157.570