摘要
利用福建省龙岩市单站Parsivel 2雨滴谱仪2015—2016年监测资料,拟合修订本地不同季节的多普勒天气雷达Z/I关系,将修订后的Z/I关系应用于本地雷达降水估算中,以龙岩区域自动站降水资料为检验依据,分析2015—2018年10次降水过程中多普勒天气雷达Z/I关系修订前后对流域面雨量估算精度的变化。结果表明:利用雨滴谱资料进行本地Z/I关系修订后,面雨量估算值较自动站偏小,误差下降了20%,雷达面雨量的估算精度总体提高了50%。
The Z/I relationship is derived to improve the radar rainfall estimation based on the data during the period of 2015 to 2016 observed by the Parsivel raindrop spectrometer in Longyan.The relationship is applied to estimate 6 rainfall cases from 2015 to 2018.By comparing with observed data from the automatic meteorological observation stations,we can see that the accuracy of radar surface rainfall estimation increased by 50% due to the corrected Z/I relationship.
作者
肖秀珠
刘君
张红梅
Xiao Xiuzhu;Liu Jun;Zhang Hongmei(Longyan Meteorological Service,Fujian,Longyan 364000)
出处
《气象科技》
2018年第6期1111-1115,共5页
Meteorological Science and Technology
基金
福建省气象局青年科技专项课题(2017Q15)资助
关键词
雨滴谱资料
Z/I关系
面雨量估测
raindrop spectrum data
Z/I relationship
surface rainfall estimation
