HTG-4型微波辐射计的航空气象预报应用研究  

Study on Meteorological Forecasting for Civil Aviation with HTG-4 Microwave Radiometer

作　　者：牟艳彬 宋静 傅文伶 张杰[2] 朱思礼 MOU Yanbin;SONG Jing;FU Wenling;ZHANG Jie;ZHU Sili(Southwest Bureau of Civil Aviation of China, Chengdu 610000, China;College of Atmospheric Sciences, Chengdu University of Information Technology, Chengdu 610225, China)

机构地区：[1]民航西南地区空中交通管理局,成都610000 [2]成都信息工程大学大气科学学院,成都610225

出　　处：《高原山地气象研究》2018年第1期35-41,共7页Plateau and Mountain Meteorology Research

基　　金：民航联合研究基金重点项目(U1733203)

摘　　要：为研究Airda HTG-4型微波辐射计在成都双流机场的应用效果,利用2017年4月~2018年1月该型辐射计温湿数据,选取雾、积冰、小(阵)雨、雷暴个例进行分析,结果表明:相对湿度和液态水含量在大雾、积冰、弱降水和强对流过程中表现良好。大雾时,近地面相对湿度和能见度的变化有较高的同步率,液态水含量的激增对应了雾的加深。弱降水和强对流过程中,相对湿度多呈"上干、下湿"两层结构;其中,6km以下相对湿度和2.3~4.5km高度的液态水含量变化显著。K指数和沙氏指数SI在对流天气下表现良好,在有明显降水后误差增大,对流过程结束后需要较长时间恢复常态。On studying the application of Airda HTG - 4 microwave radiometer at Chengdu Shuangliu Airport, it uses cases with fog, icing, rain and thunderstorm to make analysis. That shows the results with the relative humidity（RH） and liquidwater content（LWC） working well for studying convective storms and togs, which can be used to represent the changes of visibility, or the two - level structure of the air with convective cases. Especially, the RH lower than 6km and the LWC from 2.3km to 4.5km make effective changes then. The Kindex and SI also work well with convective cases, and have made extra ditterence when with heavy rain.

关 键 词：微波辐射计 相对湿度 液态水含量 K指数 

分 类 号：P414.5[天文地球—大气科学及气象学]