蒸发波导解析MGB模型适应性研究

Study on Applicability of Analytical MGB Model of Evaporation Duct

介绍了由法国学者提出的解析MGB蒸发波导模型的基本原理。通过计算机仿真分析了气温、海温、相对湿度、风速以及气压对解析MGB蒸发波导模型计算的蒸发波导高度结果的影响。同时从蒸发波导高度的角度,利用近年来海上试验中采集的实测蒸发波导高度数据和参考高度处的气象信息,研究了解析MGB模型在试验海域的适应性。结果显示解析MGB模型在接近中性层结的条件下预报结果较好。

The basic principle of the analytical MGB evaporation duct model proposed by French scholars is described in this paper. The effects of air temperature, sea temperature, relative humidity, wind speed and air pressure on the evaporation duct＇s height of the model is analyzed through numerical simulation. Then, the duct height is taken as a criterion, and the applicability of the analytical MGB model in experimental sea areas is studied by using the measured duct height data and meteorological information at the reference altitude during recent years. The results show that the model can predict the duct height exactly in near-neutral conditions.