Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1016/j.atmosres.2018.10.024 |
Numerical correction of atmospheric temperature profiles in clear and cloudy days | |
Zhao, Yuxin1; Zhou, Di1; Liu, Chang1; Wu, Peng1; Li, Liya1; Zhang, Lina2; Cheng, Wei3 | |
2019-03-01 | |
发表期刊 | ATMOSPHERIC RESEARCH
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ISSN | 0169-8095 |
EISSN | 1873-2895 |
出版年 | 2019 |
卷号 | 217页码:49-56 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
英文摘要 | A numerical correction algorithm (NCA) is proposed to improve the accuracy of atmospheric temperature profile in clear and cloudy days based on the weighting functions of different frequencies. The weighting functions of atmospheric brightness temperatures (BTs) with respect to temperature profiles are analyzed in detail. A performance assessment of the microwave radiometer (MWR) MP-3000A is operated with the observations from March to August 2018 in Harbin China (126.40 degrees E 45.46 degrees N). And a numerical method is used to calculate weighting functions with the downwelling monochromatic radiative transfer model (MonoRTM). According to the weighting functions, a cost function is defined in NCA to minimize the biases between the measured and calculated BTs by correcting the measured temperature profiles. A simulation is designed to examine the NCA based on the methodology and data. The experimental results show that the NCA can adjust the temperature profiles below 5 km. However, there is almost no improvement above 5 km because of the attenuation of radiation. And the statistic results show that the RMSE and MAE of temperature profiles corrected with NCA are reduced by 12.5% and 17.9% when compared with the uncorrected observations. Especially, both of the RMSE and MAE of the temperature profiles below 2 km are reduced by more than 50%. |
英文关键词 | Numerical correction Weighting function Brightness temperature Temperature profile |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000452931100005 |
WOS关键词 | MICROWAVE RADIOMETER ; RETRIEVAL ; LIQUID ; BRIGHTNESS ; SURFACE |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/38234 |
专题 | 地球科学 |
作者单位 | 1.Harbin Engn Univ, Coll Automat, Harbin 150001, Heilongjiang, Peoples R China; 2.Beijing Inst Automat Control Equipment, Beijing 100074, Peoples R China; 3.Inst Appl Meteorol, Beijing 100029, Peoples R China |
推荐引用方式 GB/T 7714 | Zhao, Yuxin,Zhou, Di,Liu, Chang,et al. Numerical correction of atmospheric temperature profiles in clear and cloudy days[J]. ATMOSPHERIC RESEARCH,2019,217:49-56. |
APA | Zhao, Yuxin.,Zhou, Di.,Liu, Chang.,Wu, Peng.,Li, Liya.,...&Cheng, Wei.(2019).Numerical correction of atmospheric temperature profiles in clear and cloudy days.ATMOSPHERIC RESEARCH,217,49-56. |
MLA | Zhao, Yuxin,et al."Numerical correction of atmospheric temperature profiles in clear and cloudy days".ATMOSPHERIC RESEARCH 217(2019):49-56. |
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