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Study of a heavy rainfall process based on wind profile radar |
Zhang Zhengyu1,2,Xue Zhengang2,Gao Taichang1 |
1.Institute of Meteorology,PLA University of Science and Technology,Nanjing 211101; 2.Beijing Institute of Applied Meteorology,Beijing 100029 |
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Abstract Using the data from boundary-layer wind profile radar in Fangshan area of Beijing,a heavy rainfall process from first September to second September in 2014 were analyzed. The results show that the typical characteristics of horizontal wind profile during the prefrontal warm rainfall and the low and high-level frontal passage rainfall can be clearly described by WPR data. The vertical velocity,spectral width and echo spectral density distribution have a good correlation with precipitation intensity. The vertical structure of vertical velocity,spectral width and echo spectral density distribution has evidently different features in separate phase area,and the characteristics in melting area indicate the transformation from ice to water. The echo intensity can clearly show the melting area in 2 900-3 900 m. The variation of C2n with time indicates the occurrence and evolving of the rainfall since it has a good correlation with the humidity.
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Received: 10 March 2016
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[1] |
阮征,葛润生,吴志根.风廓线仪探测降水云体结构方法的研究[J].应用气象学报,2002,13(3):330-338.
|
[2] |
何平,朱小燕,阮征,等.风廓线雷达探测降水过程的初步研究[J].应用气象学报,2009,20(4):465-470.
|
[3] |
黄钰,阮征,葛润生,等.风廓线雷达探测零度层亮带的试验研究[J].高原气象,2011,30(5):1376-1383.
|
[4] |
施红蓉,李峰,吴蕾,等.风廓线雷达对降水相态变化的观测分析[J].气象,2014,40(10):1259-1265.
|
[5] |
何越,何平,林晓萌.基于双高斯拟合的风廓线雷达反演雨滴谱[J].应用气象学报,2014,25(5):570-580.
|
[6] |
张培昌,杜秉玉,戴铁丕.雷达气象学[M].北京:气象出版社,2001.
|
[7] |
周秀骥,陶善昌,姚克亚.高等大气物理学[M].北京:气象出版社,1991.
|
[8] |
马建立,阮征,葛润生,等.风廓线雷达估算大气返回信号功率方法研究[J].气象科技,2009,37(1):89-92.
|
[9] |
汪平,吴晓庆.湿度起伏对可见光折射率结构常数影响的实验研究[J]. 光学学报,2014,34(4):14-18.
|
[10] |
阮征,何平,葛润生.风廓线雷达对大气折射率结构常数的探测研究[J].大气科学,2008,32(1):133-140.
|
[11] |
李峰,施红蓉.一次多相态天气过程的风廓线雷达探测资料特征分析[J].气象,2014,40(8):992-999.
|
[12] |
范潇,张福贵,张利华. 风廓线雷达对折射率结构常数的实测分析[J]. 成都信息工程学院学报,2013,28(6):611-616.
|
[13] |
孙刚,翁宁泉,肖黎明,等.不同地区大气折射率结构常数分布特性及分析[J].强激光与粒子束,2005,17(4):485-490.
|
[14] |
王令,王国荣,古月,等.风廓线雷达垂直径向速度应用初探[J].气象,2014,40(3):290-296.
|
|
|
|