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| 三维超声风速仪观测中风向角计算方法 | |
| 引用本文： | 姜明,景元书,郭建侠,王有恒.三维超声风速仪观测中风向角计算方法[J].气象科技,2011,39(5):615-619. |
| 作者姓名： | 姜明 景元书 郭建侠 王有恒 |
| 作者单位： | 1. 南京信息工程大学应用气象学院,南京210044;中国气象局气象探测中心,北京100081 2. 南京信息工程大学应用气象学院,南京,210044 3. 中国气象局气象探测中心,北京,100081 |
| 基金项目： | 中国气象局气候变化专项项目“国家气候观象台CO2浓度及通量监测与分析”（CCSF0907)资助 |
| 摘 要： | 在对三维超声风速仪观测资料处理中,风向角的计算具有一定的技巧性。根据三维超声风速仪自身观测坐标系统与地理坐标系之间的差异,推导出计算地理坐标系下风向角的一种方法,为超声风观测资料的处理和应用提供借鉴。同时利用锡林浩特国家气候观象台2008年全年通量观测资料对风向角进行了计算,并与台站统计资料进行了对比,结果表明两组数据无论从风向角分布趋势还是从相关性来看,均非常吻合（相关系数为0.97）,从而证明了该方法的正确性及可应用性。 |
| 关 键 词： | 三维超声风速仪 风向角 计算方法 |
| 收稿时间： | 2010/5/25 0:00:00 |
| 修稿时间： | 2010/9/28 0:00:00 |
Method for Calculating Wind Direction in Measurement Using 3D Sonic Anemometer |
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| Jiang Ming,Jing Yuanshu,Guo Jianxia and Wang Youheng.Method for Calculating Wind Direction in Measurement Using 3D Sonic Anemometer[J].Meteorological Science and Technology,2011,39(5):615-619. | |
| Authors: | Jiang Ming Jing Yuanshu Guo Jianxia and Wang Youheng |
| Institution: | 1 Institute of Applied Meteorology of Nanjing University of Information Science and Technology, Nanjing 210044; 2 Meteorological Observation Center of CMA, Beijing 100081;Institute of Applied Meteorology of Nanjing University of Information Science and Technology, Nanjing 210044;Meteorological Observation Center of CMA, Beijing 100081;Institute of Applied Meteorology of Nanjing University of Information Science and Technology, Nanjing 210044 |
| Abstract: | While processing the data obtained by three dimensional sonic anemometers, it is skillful to calculate the wind direction. Based on the difference between the coordinate system of an instrument and the geographic coordinate system, a method for calculating wind direction is presented. The data collected from the Xinlinhot flux tower is used to validate the method. Comparing the wind direction calculated by the method with that from observed, the distributions of the two data sets match well and there is a high correlation between them with the correlation coefficient being 0.97. It is suggested that the method can be used for reference in processing and applying the data measured by sonic anemometers. |
| Keywords: | three dimensional sonic anemometer wind direction calculation method |
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