丽江内陆降水背景值路径分析和计算  

Analysis and Cakulation of the Traces of Precipition Background Value in the Inland Continent in Lijiang

作　　者：霍义强 林海[1] 卜玉康[1] 

机构地区：[1]云南省气象局,云南大学地球科学系

出　　处：《云南大学学报（自然科学版）》1995年第4期354-357,共4页Journal of Yunnan University(Natural Sciences Edition)

摘　　要：根据实测资料，内插三维风场计算气块路径的方法，对丽江内陆背景点的气块作２５次后向轨迹计算，得出影响该背景点气块的主要路径和层次，经卫星云图统计比照，其规律和实际相符，时内陆背景值来源迁移研究，有实际意义．Based on the observational data,this paper using the interpolation ofthree-dimensional wind field to calculate the traces of air mass, calculate the back trajec-tories of air mass on Lijing inland background site for 25 times. The main traces and levelsof air mass which affect the background site are showed in this paper. Statistical con-trasting with satellite cloud pictures,its patten shows conform with the fact. The conclu-sions are practice significance to study on source and trsport of inland precipitation back-ground value.

关 键 词：内陆 降水背景值 三维风场 气块路径 

分 类 号：P426.6[天文地球—大气科学及气象学]