两种降雹频数气候图空间分布一致性的初步分析  

The Preliminary Analysis Spatial Agreement between Two Kinds of Hail Frequencies

作　　者：杨贵名[1] 杨晓霞[2] 宗志平[1] 马学款[1] 

机构地区：[1]中国气象局国家气象中心,北京100081 [2]山东省气象台,山东济南250031

出　　处：《高原气象》2006年第3期525-530,共6页Plateau Meteorology

基　　金：科技部科研院所社会公益研究专项课题(2004DIB3J100)资助

摘　　要：为了察看利用单站降雹频数Fs和区域降雹频数Fa制作的两种气候图的频数分布是否一致?我们绘制了该两种气候图,并进行了初步分析。结果表明,在引进了降雹频数凹凸度R,又引进了空间一致性表达式后,在两种降雹频数气候图上,它们高(低)值分布有84%的格点相一致。Usually, there are two kinds of hail frequency data： One is in the station（Fs） ; another, in a area（Fa）. Are their climate distribution map the same？ to answer the question, the two climate maps of hail frequency were made with Fs and Fa. Some intercomparisons with each other were done. Firstly concavity （R） in hail frequency was introduced in order to watch the agreement in relative distribution of hail frequency （F） in two climate maps （as F is relative large, R〈-ε; relative less, R〉＋ε; saddle）. Secondly, spatial agreement was also calculated used formula introduced. Results indicated （at least） 84% of grid numbers （distribution of high or low value） is agreement in two climate maps.

关 键 词：两种降雹频数气候图 降雹频数的凹(凸)度 

分 类 号：P458.121.2[天文地球—大气科学及气象学]