摘要
热带气旋会对历经区域的海洋大气光学环境带来显著的变化,直接影响到海军光电装备的应用。我们从热带气旋的发生频率和运动特征出发,分析由此带来的气溶胶尺度谱和水汽含量的变化规律,利用经典M ie散射理论对热带气旋环境下海洋型气溶胶散射特性进行了分析,并就热带气旋经历前后的海军光电装备性能进行研究。在强降雨环境下,光传输的透过率为0.5373,由于台风的影响造成海洋型气溶胶消光效应变化所导致单位距离上(1 km)光传输透过率提升了约1.056倍。研究结果表明,热带气旋会在一定程度上对海军光电装备的性能产生影响,特别是与光散射有关的红外大气辐射特性的影响尤为严重。
The marine atmospheric optical environment is significantly changed while the tropical cyclone over the ocean,thus affect the application of naval photoelectricity-equipment directly. The discipline of aerosol particles spectral distribution and vapor content is analyzed from the characteristics of frequency and movement of tropical cyclone, the scattering properties of aerosol in the tropical cyclone environment is analyzed using MIE theory, and the performance of naval photoelectricity-equipment surrounded the tropical cyclone is compared and studied. The transmittance of light propagation in the heavy rainfall situation is 0. 5373,and the transmittance of light propagation is increased 1. 056 times due to marine-type aerosol caused by typhoon. It turns out that the performance of naval photoelectricity-equipment will be affected by the marine atmospheric optical environment influenced by the tropical cyclone to a certain extent, especially the characteristics of infrared radiation propagation are strongly correlated to the tropical cyclone.
出处
《舰船科学技术》
2010年第1期89-92,98,共5页
Ship Science and Technology
关键词
热带气旋
海洋大气环境
光电装备
tropical cyclone
marine atmospheric environment
photoelectricity-equipment
