国家气象中心降水数值预报信息效益评估  

ASSESSMENT OF INFORMATION BENEFITS OF CHINA NMC NUMERICAL PREDICTION OF RAINFALL

作　　者：陈德群[1] 朱双[1] 严明良[1] 

机构地区：[1]江苏省气象台

出　　处：《南京气象学院学报》1997年第4期529-533,共5页Journal of Nanjing Institute of Meteorology

基　　金：国家自然科学基金

摘　　要：以列联表形式计算熵函数，由熵函数值对国家气象中心发布的１９９６年汛期６月２２日～８月７日５次暴雨过程降水数值预报（Ｔ６３和ＨＬＡＦＳ模式产品）进行评估，得到５种数值预报产品给江苏省各区域的雨量预报提供了０．１８２４ｂｉｔ～０．２９１４ｂｉｔ信息等结论。Calculated with a constructed contingency table was entropy function, which was used for assessing five rainstorm forecasts (June 22 - August 7, 1996) as T63 and HLAFS model products issued by China National Meteorological Center (NMC), leading to as many numerical products that offered information of 0.182 4～0.291 4 bits for different regions of Jiangsu province in preparing rainfall prediction.

关 键 词：信息评估 信息比 熵 降水 数值预报 降水预报 

分 类 号：P457.6[天文地球—大气科学及气象学] P456.7