Primary study on the revised method to the VIL products of the New-Generation Weather Radar

Based on the analysis of the principle and the properties of the VIL physical quantity product,the data of the VIL physical quantity product should not be used directly to instruct the weather modification operations as a quantitative index,because only one fixed Z-M relationship is used in the course of generating products.In fact,the Z-M relationship changes obviously with different seasons and regions,so that the data of the VIL seldom accords with real values.In order to solve the above problem,the thorough study how to revise the data of the VIL product provided by the New-Generation Weather Radar should be done theoretically.The theoretical solution how to revise the VIL product when an idiographic Z-M relationship is taken,is given according to the "VIL Revising-Function".In the last place,two methods,i.e.the revised table and the revised curves for correcting the values of the VIL physical quantity product were brought forward.And as a case study of Shenyang region,some necessary explanations to the processes and the steps of the revised table and the revised curves were shown.