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。
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.
出处
《气象学报》
CSCD
北大核心
1999年第3期358-366,共9页
Acta Meteorologica Sinica
基金
国家自然科学基金
中国科学院院长基金
