【摘要】 通过对各种大雾发生性质及种类的研究,分析了2006年1月份多次典型的大雾过程,着重讨论了MM5数值预报产品对地处江、浙、皖三省交界的浙北地区大雾生消的相关特性;通过对一系列实况样本的筛选,对主要大雾影响因子的物理特征做了统计分析,揭示了大雾与各类因子的内在联系,奠定了大雾客观预报模式的物理基础;利用逐步回归和多层递推迭代方案建立了预报模式,为大雾的成片预报提供了依据。更多还原

【Abstract】 Studying on various kinds of character of heay fog,several typical heavy fog process were analyzed happened in Jan,2006,Discussed the related characteristic of MM5 numerical forecasting product to the heavy fog happened in northern Zhejiang area located on the boundary of jiangshu anhui and zhejiang province emphatically.By a series of live sample screening,we have made the statistical analysis to the factor’s physical feature effecting heavy fog,and promulgated the inner link between heavy fog and the factor,laid the physical foundation of objective forecasting model for heavy fog;established the forecast model using the stepwise regression and the multi-layere d recursion iteration plan,which provided the basis for the wide range forecast to heavy fog.更多还原