| 成都机场2019～2020年初辐射雾过程中微波辐射计应用 |
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| 引用本文： | 伍一,赵瑞达,胡壮.成都机场2019～2020年初辐射雾过程中微波辐射计应用[J].高原山地气象研究,2020,40(4):77-81. |
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| 作者姓名： | 伍一 赵瑞达 胡壮 |
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| 作者单位： | 民航西南空中交通管理局,成都610202;民航西南空中交通管理局,成都610202;民航西南空中交通管理局,成都610202 |
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| 基金项目： | 国家重点研发计划项目(2018YFC1507200) |
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| 摘 要： | 利用微波辐射计资料、自动观测资料，分析了成都双流机场2019～2020年初的辐射雾中跑道视程(RVR)的变化特征。结果表明:(1)雾中各跑道RVR差别大，02R最差，20R最好。(2)微波辐射计反演温度在近地层有偏差，午后偏低，凌晨偏高，分析时需修订。(3)RVR变化特征与近地面逆温层特征及虚位温特征有较好对应，可据此更好地预计RVR变化，特别是RVR上升至550m临界值的时间。
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| 关 键 词： | 辐射雾 微波辐射计 跑道视程(RVR) 温度廓线 虚位温廓线 |
| 收稿时间： | 2020-11-08 |
Application of Microwave Radiometer in the Radiation Fog Process at Chengdu Airport from 2019 to Early 2020 |
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| Affiliation: | Southwest Regional Air Traffic Management Bureau of Civil Aviation of China, Chengdu 610202, China |
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| Abstract: | By use of microwave radiometer data and automatic observation data,the change characteristics of the runway visual range (RVR) in the radiation fog at Chengdu Shuangliu Airport from 2019 to early 2020 were analyzed. The results show that: (1) The RVR of each runway in the fog varies greatly,02R is the worst and 20R is the best. (2) The temperature of near-surface layer inverted by the microwave radiometer is deviated,which is lower in the afternoon and higher in the early morning than the actual value. it needs to be revised during analysis. (3) The change characteristics of RVR correspond well to the characteristics of near-surface inversion layer and virtual potential temperature,which can be used to predict the change of RVR more accurately. Especially the time when RVR rises to the critical value of 550m. |
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