CAJ | 학술논문

利用2011年6～8月的SWAN雷达拼图垂直累计液态含水量（VIL）产品，分析VIL产品中鄂西南地物回波特征，提出直接定位剔除的方法：首先建立鄂西南地物位置索引表，然后根据索引表在VIL拼图产品中剔除地物，最后对剔除地物后的空白区域通过局部递归插值来进行图像平滑处理。经过实际资料检验，在一定样本数的统计结果中取得了较好效果，能够更真实地反映VIL水平分布特征。
이용2011년6～8월적SWAN뢰체병도수직루계액태함수량（VIL）산품，분석VIL산품중악서남지물회파특정，제출직접정위척제적방법：수선건립악서남지물위치색인표，연후근거색인표재VIL병도산품중척제지물，최후대척제지물후적공백구역통과국부체귀삽치래진행도상평활처리。경과실제자료검험，재일정양본수적통계결과중취득료교호효과，능구경진실지반영VIL수평분포특정。
Vertically Integrated Liquid (VIL)indicates the total liquid water content in vertical column above the unit bottom area in cloud.It’s very important for cloud water resources monitoring,weather warning,operation commanding and effect evaluation of weather modification.Ground clutter doesn’t belong to meteorological factors,while it would affect the quality of both the basic data and export products.It has a serious impact on the quantitative application of radar data and must be identified and eliminated.By u-sing radar mosaic VIL products of SWAN from June to August in 2011,an analysis was made on the characteristics of the ground clutter in southwest Hubei,and it was found that the location,size and shape of the ground clutter were relatively fixed.A method of elimina-ting ground clutter was proposed,firstly,the position index list of the ground clutter was build in southwest Hubei,then eliminating the ground clutter according to the list,finally the blank region after eliminating ground clutter was filled smoothly by recursion interpola-tion.It found that the method achieved good effects in statistical results for a certain number samples,which made the product more factually represent the horizontal distribution characteristics of VIL.