Radar Studies of Rainfall with Applications to Forecasting

天气监视雷达用于预测恶劣天气事件，其回波强度取决于波束中雨滴的数量。经适当校正后，回波强度可用作预测降雨量。2005年，气象局将在阿德莱德附近建立一个新的天气雷达。我们将比较使用新雷达进行的降雨量估计与准确测量雨滴分布和降雨量的甚高频剖面仪的结果。目的是测试天气雷达对降雨率的估计及其不确定性。其成果将在洪水预报和水文学方面得到应用。

Weather watch radars are used to predict severe weather events, with echo strengths depending on the number of rain drops in the beam. With suitable calibration the echo intensities can be used to predict rainfall rates. In 2005 the Bureau of Meteorology will establish a new weather radar near Adelaide. We will compare rainfall estimates made with the new radar with results from a VHF profiler that accurately measures rain drop distributions and rainfall. The aim is to test the weather radar estimates of rainfall rates and their uncertainties. Outcomes will have applications in flood forecasting and hydrology.