摘要
蒸发波导是一种异常的大气折射结构,在亚热带海域出现的概率较高,由于蒸发波导能够显著影响无线电探测装置的效能,因此军事研究意义重大。PJ模型是一种基于莫宁-奥布霍夫相似理论的蒸发波导模型,目前已被多国广泛使用。本文在简要介绍PJ模型的基本定理基础上,利用计算机仿真得到了模型对气海温差、风速以及相对湿度的敏感性,同时利用近几年的实测数据对该模型在亚热带海域的适应性作了研究。结果表明,蒸发波导PJ模型基本适用于该类海域。
Evaporation duct is a kind of anomalous profiles of atmospheric refractivity,it frequently occurs in semitropical sea areas,and it can remarkably affect the efficiency of wireless detection equipment,so it is very important in military operations.PJ model is widely used in many countries,which is based on MOS（Monin Obukhov Similarity）theory.In the paper,the basic theory of PJ model is introduced,and the model sensitivity results of ASTD（air-sea temperature difference）,wind speed,relative humidity are analyzed through simulation, meanwhile, the applicability using actual measured data in recent years. The result applicable to the semitropical sea areas. of the model in semitropical sea areas is studied by shows that PJ evaporation duct model is basically
出处
《舰船科学技术》
2009年第9期96-99,103,共5页
Ship Science and Technology
关键词
蒸发波导
PJ模型
敏感性
evaporation duct
PJ model
sensitivity
