北极海雾下的红外波段电波传播衰减预报  

Forecasting of infrared wave propagation attenuation under Arctic sea fog

作　　者：张玉生 郭相明[1,2] 赵振维 康士峰[2] 赵强 ZHANG Yusheng;GUO Xiangming;ZHAO Zhenwei;KANG Shifeng;ZHAO Qiang(National Key Laboratory of Electromagnetic Environment,Qingdao 266107,China;China Research Institute of Radiowave Propagation National Key Laboratory,Qingdao 266107,China)

机构地区：[1]电波环境特性及模化技术重点实验室,山东青岛266107 [2]中国电波传播研究所重点实验室,山东青岛266107

出　　处：《红外与激光工程》2025年第2期21-29,共9页Infrared and Laser Engineering

基　　金：国家自然科学基金项目(62271457,U21A20457,61971385,61901424);张明高院士工作室基金项目(A392201528)。

摘　　要：针对北极航行航空活动中红外波段电子系统的保障和效能预报需求,利用极区数值模式PWRF(Polar WRF)以我国第四次北极科学考察队乘坐“雪龙”号极地科学考察船在北冰洋遭遇到的海雾为例开展了海雾预报研究,在此基础上实现了远、中、近红外波段高低端波长下的衰减效应预报研究。结果表明,对于大于等于0.5 g·m-3以上的海雾相同含水量,远红外线波段高低端代表波长衰减预报值相差最大,中红外线波段高低端代表波长衰减预报值相差次之,近红外线波段高低端代表波长衰减预报值相差最小;通过与相关文献红外波长10.6μm波长实测数据衰减拟合值结果对比,在同等条件下,该方法24 h预报结果误差仅为4%左右,从侧面说明文中基于米散射方法进行平流海雾下的红外衰减预报方法合理可信,有一定的精度保证。这为北极地区的探测、通讯等领域的红外等系统的效能预先评估、有效使用预案和发挥其最大效能提供技术支撑。Objective The infrared band is an electromagnetic band between microwave and visible light,which covers the thermal radiation emitted by objects at room temperature.Its unique properties can be widely used in fields such as detection and communication.When it is under sea fog conditions,due to the large amount of water vapor and droplets within the sea fog range,the electromagnetic wave energy in the infrared band is severely attenuated by the absorption and scattering of water vapor,resulting in a serious decrease or even failure of the infrared electronic information system.The Arctic shipping route is the shortest straight-line distance from North Asian countries to North American and Nordic countries.In this region,sea fog is frequent,and there are few numerical simulations(forecasts)of sea fog in the Arctic region.There are even fewer reports on infrared wave propagation attenuation forecasts based on sea fog conditions.With the increasing demand for Arctic applications and the continuous development of technology,Arctic sea fog forecasting and infrared wave propagation attenuation forecasting under sea fog conditions are issues that must be faced and studied.This article addresses the need for performance prediction of infrared wave electronic systems in Arctic navigation and aviation activities,and achieves prediction of infrared wave propagation attenuation under Arctic sea fog.Methods Firstly,this article uses the polar numerical model PWRF(polar WRF)to improve the Noah land surface process scheme,long wave radiation scheme,RRTMG scheme,and optimize the feature height and integration steps.The infrared wave propagation attenuation under Arctic sea fog was successfully forecasted(simulated)to forecast(simulate)the infrared wave propagation attenuation under Arctic sea fog when the Chinese fourth Arctic research team encountered an accident in the Arctic Ocean on the polar research ship"Xuelong".Secondly,due to the complexity of measuring fog droplet spectra and the difficulty of ensuring realtime accuracy

关 键 词：电子信息 衰减预报 数值模式 北极 海雾 红外波段 

分 类 号：TN011[电子电信—物理电子学] P415.3[天文地球—大气科学及气象学]