飞机积冰诊断预报方法研究

收集了山东省150例飞机积冰报告，利用物理量场模拟数据，结合3种积冰算法（Ic，RAP，RAOB），分别进行积冰的诊断预报试验，并对3种诊断预报方法进行了准确率检验。为进一步提高预报准确率、降低漏报率，在对Ic和RAOB两种预报效果较好的算法重新调整积冰温度、湿度阈值以及相应系数后，新Ic算法在保持漏报率较低的前提下，...

Study on Methods of Aircraft Icing Diagnosis and Forecast

The 150 pilot reports （PIREPs） of icing conditions in Shandong province were collected. Aircraft icing diagnosing and forecasting experiments were carried out separately with simulation data of physical quantity field and three icing algorithms （ Ic, RAP, RAOB） , and the accuracy rates of the three algorithms were verified. To get better accuracy rate and lower missing rate, the Ic and RAOB algorithms were get improved by readjusting icing temperature and humidity thresholds, or corresponding coefficient. The accuracy rate of the new Ic algorithm was nearly increased by 10% in condition of keeping a lower missing rate, and the missing rate of the new RAOB algorithm was nearly decreased by 12% in condition of keeping a good accuracy rate.