IMPROVEMENT OF OBSERVATION ACCURACY AROUND 0 DEGREE BY USING XMP RADAR RAIN GAUGE

Abstract

 Brightband is known as the overestimate area of radar observation by melting of precipitation particles. In this study, correction of Brightband area by the linear interpolation was examined. This correction was applied to precipitation observation from November 2014 to April 2015, and overestimation of radar rain was successfully eliminated in the minutes identifying Brightband or in the closer area of the radar site. However most of overestimation was remained. In order to improve all the period of wintertime, the correction of conversion coefficient near 0 degree height should be considered.