机场风廓线雷达参数选择和安装位置分析  

Analysis on Parameters Selection and Installation Location of Airport Wind Profile Radar

作　　者：明虎 阮征[2] 王敏仲[3] 卢禹茜 

机构地区：[1]中国民用航空西北地区空中交通管理局气象中心,西安710082 [2]中国气象科学研究院灾害天气国家重点实验室,北京100081 [3]中国气象局乌鲁木齐沙漠气象研究所,乌鲁木齐830002

出　　处：《现代雷达》2014年第8期10-13,共4页Modern Radar

基　　金：中央级科研业务费资助项目(IDM201002);中国气象局气象关键技术集成与应用基金资助项目(CMAGJ2013M74);国家科技支撑计划资助项目(2012BAC23B01)

摘　　要：通过统计西北地区四大机场64次风切变发生的高度、时间分布得到机场对风廓线雷达探测高度要求应为50 m^3 000 m;同时,为了达到探空要求,风廓线雷达的天线口径应该选择2.4 m。通过2012年西安咸阳国际机场统计资料分析得到了风廓线雷达的实际探测高度与温度和湿度程正相关,并且风廓线雷达随湿度变化的梯度比较大,而随温度变化的梯度较小,发射功率应该根据机场的温湿度特点来选择。风廓线雷达的安装位置应保证航空器飞经时的高度在有效探空区。Through statistics of the height and the time distributions of 64 wind shear at four airports in northwest China , the detec- ted height of wind profile radar installed in the airport should be 50 m - 3 000 m. According to detection requirement of low-level wind shear on airport, antennas aperture of wind profile radar should select 2.4 m. Both airport temperature and airport humidity have obviously positive correlation with the detection height of wind profile radar by analyzing the data from Xi＇an Xianyang interna- tional airport in 2012. The height gradient along with the change of humidity is very obvious and it is small along with the chang of temperature. The transmission power of wind profile radar should be selected according to the characteristics of airport temperature and humidity. The installation location must ensure the vertical distance between aircraft and the antenna plane within the effective detection range of wind profile radar.

关 键 词：风廓线雷达 天线口径 风切变 大气折射率常数 

分 类 号：TN959.4[电子电信—信号与信息处理]