基于对象诊断的空间检验方法(MODE)  

Method for Object-Based Diagnostic Evaluation and Its Application

作　　者：王国荣[1] 陈敏[2] 由凤春 郭锐[1] 

机构地区：[1]北京市气象台,北京100089 [2]中国气象局北京城市气象研究所,北京100089

出　　处：《气象科技》2014年第4期652-656,共5页Meteorological Science and Technology

摘　　要：基于对象诊断的空间检验方法 MODE(Method for Object-Based Diagnostic Evaluation),通过在空间场中识别对象,计算对象的相似度,并最终形成两个场的综合相似度来实现对两个空间场的检验。相对于传统的点对点的检验方法,该方法综合考虑了空间位置、形状、面积等多种因素,并通过符合主观判断的模糊逻辑算法计算相似度,克服了数值预报传统检验方法对于空间位置的过度依赖以及TS评分中的"双重惩罚"等不足。个例研究表明该方法具有明显的优势,有较高的实际应用价值。The Method for Object-Based Diagnostic Evaluation （MODE） realize the verification of two fields by identifying objects in each filed, calculating object similarity and drawing a composite similarity between the two fields. Compared with the traditional method, which is known as a point-to-point method, MODE takes account of spatial location, shape size, and other factors of objects, calculates the similarity with a fuzzy logic algorithm conforming to the subjective judgment, and overcomes the shortcomings of a traditional method, such as high sensitivity to spatial locations and ＂ double punishment. ＂ Case studies are conducted, and the results show that MODE has evident advantages.

关 键 词：MODE 对象识别 模糊逻辑算法 双重惩罚 

分 类 号：P457.6[天文地球—大气科学及气象学]