| 立体雷达方法在星载测雨雷达上的应用 |
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| 引用本文： | 窦贤康,J.Testud.立体雷达方法在星载测雨雷达上的应用[J].气象学报,1999,57(3):358-366. |
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| 作者姓名： | 窦贤康 J.Testud |
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| 作者单位： | 中国科学技术大学 |
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| 基金项目： | 国家自然科学基金,中国科学院院长基金 |
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| 摘 要： | 星载测雨雷达的应用，必须满足一些主要条件：高的空间分辨率、宽阔的覆盖范围、大的动态降雨测量范围以及精确的点测量等。由于技术条件的限制，满足这些条件的雷达工作在被雨衰减的频率段，因此必须修正由于衰减所导致的误差。立体雷达方法利用雷达从两个不同角度对雨团的观测来进行衰减效应的订正并实现整个观察区域的雷达反射率因子和比衰减因子场的反演。通过数值实验研究了星载特性的引入造成的不均匀性束内填充效应对立体雷达方法的影响
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| 关 键 词： | 立体雷达方法，星载测雨雷达，雨强 |
| 收稿时间： | 1/9/1998 12:00:00 AM |
| 修稿时间： | 1998/4/27 0:00:00 |
THE APPLICATION OF STEREORADAR ANALYSIS TO THE SPACEBORNE RAIN RADAR |
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| Dou Xiankang and J. Testud.THE APPLICATION OF STEREORADAR ANALYSIS TO THE SPACEBORNE RAIN RADAR[J].Acta Meteorologica Sinica,1999,57(3):358-366. |
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| Authors: | Dou Xiankang and J Testud |
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| Institution: | University of Science and Technology of China, Hefei, 230026;Centre d'etude des Environnements Terrestre et Planetaires, CNRS, 78140 Velizy, France |
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| Abstract: | The application of spaceborne rain radar should satisfy some main requirements: high spatial resolution, wide coverage, large dynamic range for rainrate measurements and accurate point rainfall rate measurements. Due to the technical constraints, the radars satisfying the above requirements work at the attenuated frequency. The stereoradar analysis is conceived as a procedure to correct the reflectivity field for attenuation by using the apparent reflectivities observed along the radars's two viewing angles and to retrieve the specific attenuation coefficient field. This paper is to study by simulation the influence of non uniform beam filling effect due to the implementation of the spaceborne means on the stereoradar analysis. |
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| Keywords: | Stereoradar analysis Spaceborne rain radar Rain rate |
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