| 重庆微波辐射计资料的评估和探测特征分析 |
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| 引用本文： | 赵美艳,余君,蒋镇.重庆微波辐射计资料的评估和探测特征分析[J].新疆气象,2022,16(5):118-126. |
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| 作者姓名： | 赵美艳 余君 蒋镇 |
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| 作者单位： | 重庆市气象信息与技术保障中心,丰都县气象局,云阳县气象局 |
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| 摘 要： | 对比了2017～2019年重庆沙坪坝MP-3000A型地基微波辐射计和Metop-A掩星资料气温、湿度廓线探测之间的差异,并对两次天气过程中微波辐射计的探测特征进行分析,结果表明：(1)微波辐射计与掩星气温在整个探测高度上均为显著正相关,且低层高于高层；夏半年偏差小于冬半年；,4km以下微波辐射计探测气温高于掩星气温,降雨时偏差更大。(2)微波辐射计与掩星相对湿度相关性稍高于气温；,夏半年相关性高于冬半年,,偏差小于冬半年；降水天气时,1km以下及4～-6km之间,微波辐射计相对湿度的负偏差值明显比无降水时大。(3)降水时段,微波辐射计探测5km以下为高湿区,暖湿气团上升过程中凝结潜热和绝热冷却作用,中低层出现了逆温层；辐射雾出现时,微波辐射计探测到近地面层相对湿度增大和气温降低。
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| 关 键 词： | 微波辐射计 掩星 气温 相对湿度 |
| 收稿时间： | 2021/2/5 0:00:00 |
| 修稿时间： | 2021/10/15 0:00:00 |
The Assessement and Detecting characteristics of MP-3000A Microwave Radiometer |
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| Zhao Mei-yan,Yu Jun and Jiang Zhen.The Assessement and Detecting characteristics of MP-3000A Microwave Radiometer[J].Bimonthly of Xinjiang Meteorology,2022,16(5):118-126. |
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| Authors: | Zhao Mei-yan Yu Jun and Jiang Zhen |
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| Institution: | The Meteorological Information And Technical Center of Chongqing Meteorological Bureau,Fengdu Meteorological Bureau,Yunyang Meteorological Bureau |
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| Abstract: | The difference of atmospheric temperature and humidity profiles between MP-3000A Microwave radiometer and Metop-A occultation data was compared, and the detecting characteristics in different weather process, results indicate that: (1) There is a significant positive correlation between Microwave radiometer and occultation air temperature over the whole sounding height, and the correlation is higher in lower than in upper, The average temperature deviation is less in the summer half year than in winter half year, The temperature is higher by microwave radiometer than occultation, especially in rain condition. (2) The correlation of relative humidity is higher than atmospheric temperature by microwave radiometer and occultation, the correlation is higher in summer half year than in winter half year, and the correlation is less; the negative deviation is higher in rain condition , especially below 1km and between 4-6km. (3) During the precipitation period, the high humidity area under 5km detected by microwave radiometer, the condensation latent heat and adiabatic cooling by the rising process of warm and wet air mass, an inversion layer appeared in the middle and lower layers; the relative humidity increases and the temperature decreases near surface when the radiation fog appeared. |
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| Keywords: | microwave radiometer occultation temperature humidity |
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