| 不同天气条件下微波辐射计和风廓线雷达探测数据误差特征分析 |
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| 引用本文： | 陈树成,李晓波,崔明,王彦.不同天气条件下微波辐射计和风廓线雷达探测数据误差特征分析[J].气象与环境学报,2021,37(1):67-72. |
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| 作者姓名： | 陈树成 李晓波 崔明 王彦 |
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| 作者单位： | 1. 天津市气象探测中心, 天津 3000612. 天津市人工影响天气办公室, 天津 300074 |
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| 基金项目： | 国家自然科学基金(41675046);环渤海区域科技协同创新基金项目(QYXM201908)共同资助。 |
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| 摘 要： | 为探讨微波辐射计和风廓线雷达探测数据的准确性和可用性，利用天津全运会期间获取的GPS探空资料，分析不同天气条件下微波辐射计探测温湿度、风廓线雷达测风的误差特征。结果表明：晴天、云天和雨天条件下，微波辐射计反演低空温度廓线效果均较好，反演高空温度廓线误差较大，云天条件下，反演的整层温度廓线与探空实测值相关性最优；3种天气条件下，微波辐射计反演相对湿度廓线的误差均较大，与探空实测值的相关性也较差；晴天和云天条件下，风廓线雷达探测风向、风速的误差均较小，雨天风廓线雷达测风效果较差；晴天和云天条件下1750 m以上，雨天3000 m以上，风廓线雷达探测风速数据与探空实测值相关性较好，低空探测风速与探空相关性较差；3500 m以下，3种天气条件下风廓线雷达探测风向与探空实测值相关性较差，3500 m以上相关性较好，数值在0.6—1.0之间波动变化。
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| 关 键 词： | 天气条件 微波辐射计 风廓线雷达 误差特征 |
| 收稿时间： | 2019-08-28 |
Error analysis of detection data of microwave radiometer andwind profiler radar under different weather conditions |
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| CHEN Shu-cheng,LI Xiao-bo,CUI Ming,WANG Yan.Error analysis of detection data of microwave radiometer andwind profiler radar under different weather conditions[J].Journal of Meteorology and Environment,2021,37(1):67-72. |
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| Authors: | CHEN Shu-cheng LI Xiao-bo CUI Ming WANG Yan |
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| Institution: | 1. Tianjin Meteorological Observation Center, Tianjin 300061, China2. Tianjin Weather Modification Office, Tianjin 300074, China |
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| Abstract: | In order to explore the accuracy and availability of the detection data of microwave radiometer and wind profiler radar,the error characteristics of temperature and humidity detected by microwave radiometer and wind profiler radar under different weather conditions were analyzed using the GPS sounding data obtained during the National Sports Games in Tianjin.The results show that under sunny,cloudy,and rainy days,the microwave radiometer retrieves the low-altitude temperature profile well,while the inversion error of the upper-air temperature profile is large.Under cloudy days,the correlation between the inverted whole-layer temperature profile and the measured values from radiosonde is optimal.Under three kinds of weather conditions,the error of relative humidity profile inverted by the microwave radiometer is large,and the correlation with sounding data is poor.Under sunny and cloudy conditions,the error of wind direction and speed detection by wind profile radar is small,and the wind detection effect of wind profile radar on rainy days is poor.Under sunny and cloudy conditions above 1750 m,and rainy days above 3000 m,the wind speed data detected by the wind profile radar have good correlations with sounding data,while those detected at low altitude have poor correlations with sounding data.Below 3500 m,the correlation between the wind direction detected by the wind profile radar and sounding data is poor under three weather conditions,while above 3500 m,the correlation is good,and the value fluctuates between 0.6-1.0. |
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| Keywords: | Weather conditions Microwave radiometer Wind profiler radar Error characteristics |
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