| 利用 IASI资料反演平流层大气温度 |
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| 引用本文： | 吴晓,姚志刚,韩志刚,赵增亮.利用 IASI资料反演平流层大气温度[J].红外,2016,37(4):11-17. |
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| 作者姓名： | 吴晓 姚志刚 韩志刚 赵增亮 |
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| 作者单位： | 解放军理工大学气象海洋学院;北京应用气象研究所,北京应用气象研究所,北京应用气象研究所,北京应用气象研究所 |
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| 基金项目： | 国家自然科学基金项目(41575031)；部级重点课题(QX2015040311A12005)；中国博士后基金项目(2015M580124)；气象行业专项项目(GYHY201406011) |
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| 摘 要： | 红外大气探测干涉分光仪(Infrared Atmospheric Sounding Interferometer, IASI)能够获取平流层的大气温度廓线，而且由其
提取的大气温度扰动信息可用于平流层的重力波特征分析。基于神经网络方法，利用典型
大气廓线库和大气辐射传输模式建立了由IASI反演25～60 km高度范围内的平流层大气温度廓
线的算式，并结合再分析资料对反演结果进行了检验。模拟试验结果表明，平流层大气
温度反演的偏差主要在0 K附近且不超过1 K，均方根误差处在2～6 K之间，且50～5 hPa之间的均方
根误差在3 K以内。对比验证结果表明，本文的平流层大气温度反演与欧洲中期天气预报中心(European Centre for Medium-range Weather Forecasts, ECMWF)的再分析资料在总体上具有可比性，而且反演速度更快，覆盖的区域更完整。
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| 关 键 词： | 平流层 温度反演 IASI |
| 收稿时间： | 2016/3/18 0:00:00 |
| 修稿时间： | 2016/3/28 0:00:00 |
Retrieval of Stratospheric Temperatures from Radiance Measurements by Infrared Atmospheric Sounding Interferometer |
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| WU Xiao,YAO Zhigang,HAN Zhigang and Zhao zengliang.Retrieval of Stratospheric Temperatures from Radiance Measurements by Infrared Atmospheric Sounding Interferometer[J].Infrared,2016,37(4):11-17. |
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| Authors: | WU Xiao YAO Zhigang HAN Zhigang and Zhao zengliang |
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| Affiliation: | Institute of Meteorology and Ocean,PLA university of Science and Technology;China;Beijing Institute of Applied Meteorology;China,Beijing Institute of Applied Meteorology;Beijing Institute of Applied Meteorology,Beijing Institute of Applied Meteorology,Beijing Institute of Applied Meteorology |
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| Abstract: | Infrared Atmospheric Sounding Interferometer (IASI) can be used
to acquire stratospheric temperature profiles and analyze stratospheric gravity waves.
On the basis of the neural network, a formula for IASI to retrieve the stratospheric
temperature profiles in the altitude range from 25 km to 60 km is established by using
the typical atmospheric profile database and the atmospheric radiation transfer mode.
The retrieval results are verified according to the reanalysis results. The simulation
test results show that the retrieval deviations of stratospheric temperatures are mainly
close to 0 K and are not greater than 1 K. The root mean square error is between 2 K and
6 K and the root mean square error in the range from 50 hPa to 5 hPa is within 3 K. The
comparison results show that the retrieval of temperature profiles from IASI_SFOV is comparable
to the reanalysis data from ECMWF on the whole. The retrieval is faster and has a more
complete coverage area. |
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| Keywords: | stratosphere temperature retrieval IASI |
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