| 星载雷达与C波段地基雷达数据一致性个例分析 |
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| 引用本文： | 朱飙,楚志刚,王振会,韩静.星载雷达与C波段地基雷达数据一致性个例分析[J].气象科学,2020,40(3):385-392. |
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| 作者姓名： | 朱飙 楚志刚 王振会 韩静 |
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| 作者单位： | 甘肃省气象局, 兰州 730000;兰州区域气候中心, 兰州 730030;南京信息工程大学 大气物理学院, 南京 210044 |
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| 基金项目： | 公益性行业（气象）科研专项项目（GYHY201306078）；国家重点研发计划项目（2018YFC1506603） |
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| 摘 要： | 为提高单部雷达与多部雷达组网探测降水的精度,对地基雷达进行了一致性定标。星载雷达作为标准参考源已应用于S波段天气雷达的一致性定标,但对于C波段天气雷达的适用性仍有待研究。为此,本文选择了位于较高纬度的兰州C波段业务雷达,设计了以星载雷达标定C波段雷达的方法。通过对两个降水个例进行分析发现:定标后的C波段雷达回波强度和降水反演精度均有一定改善。说明采用星载雷达对C波段雷达进行定标也是可行的,这有利于解决西部地区地基雷达组网探测的一致性定标难题,展现了良好的应用前景。
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| 关 键 词： | 星载测雨雷达 C波段地基雷达 C波段雷达定标 数据一致性 雷达估计降水 |
| 收稿时间： | 2018/2/7 0:00:00 |
Comparative case study on the data consistency between the space-borne radar and C-band ground-based radar |
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| ZHU Biao,CHU Zhigang,WANG Zhenhui,HAN Jing.Comparative case study on the data consistency between the space-borne radar and C-band ground-based radar[J].Scientia Meteorologica Sinica,2020,40(3):385-392. |
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| Authors: | ZHU Biao CHU Zhigang WANG Zhenhui HAN Jing |
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| Institution: | Gansu Meteorological Bureau, Lanzhou 730000, China;Lanzhou Regional Climatic Center, Lanzhou 730030, China;School of Atmospheric Physics, Nanjing University of Information Science & Technology, Nanjing 210044, China |
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| Abstract: | In order to improve the precision of precipitation estimation by the networking of single radar and multiple radar, consistency calibration for ground-based radar is necessary. As a standard reference source, satellite-borne radar has been applied to the consistency calibration of S-band weather radar, but its applicability to C-band weather radar still needs to be studied. In this paper, the Lanzhou C-band operational radar located at higher latitude is selected, and the method of calibrating C-band radar with satellite-borne radar is designed. Through the analysis of two precipitation cases, it is found that the calibrated C-band radar echo intensity and precipitation inversion accuracy are improved to some extent. It shows that it is feasible to use satellite-borne radar to calibrate C-band radar, which is conducive to solving the problem of consistency calibration of ground-based radar network detection in the western region of China and shows a good application prospect. |
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| Keywords: | space-borne rain radar C-band ground-based radar C-band radar calibration data consistency radar precipitation inversion |
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