摘要
利用雷达回波和自动站降水资料,采用统计方法进行对比分析,结果表明:≥35dBz、5~6min/次的雷达回波资料,结合5min/次的降水资料,可以反应出:降水雷达回波的降水曲线呈正态分布,10min短时降水达10mm以上量级。此分析结果可以引伸到相邻回波,得到降水量级的估测值。
Radar echo and AWS precipitation data are analyzed by using statistical methods.The results show that by means of radar echo every 5to 6 min that more than 35dBz and combined with precipitation data collected every 5 min,a normal distribution appears in dropdown curve of radar returns,and the magnitude of short-term rainfall in 10min reaches above 10mm.The above results can amplify on neighbouring returns,then the value of precipitation magnitude can be estimated.
引文
[1]丛芳,刘黎平.新一代天气雷达与地面雨量资料的综合分析[J].气象,2011,37(5):532-539.
[2]张宁,江志红,吴立广.江苏省自动站与基础站降水观测资料质量分析[J].大气科学学报,2010,33(5):606-614.
[3]陶士伟,仲跻芹,徐枝芳,等.地面自动站资料质量控制方案及应用[J].高原气象,2009,28(5):10021008.
[4]王海军,杨志彪,杨代才,等.自动气象站实时资料自动质量控制方法及其应用[J].气象,2007,33(10):102-109.
[5]吴明江,宋文英,陈勇斌,等.自动气象站缺测数据分析及处理[J].气象科技,2009,37(4):466-468.
[6]张强,涂满红,马舒庆,等.自动雨量站降雨资料质量评估方法研究[J].应用气象学报,2007,18(3):365372.
[7]任芝花,赵平,张强,等.适用于全国自动站小时降水资料的质量控制方法[J].气象,2010,36(7):123132.