NSSC OpenIR  > 微波遥感部
A COMPARISON OF THE RETRIEVAL OF ATMOSPHERIC TEMPERATURE PROFILES USING OBSERVATIONS OF THE 60 GHZ AND 118.75 GHZ ABSORPTION LINES
He Qiu-rui1,2; Wang Zhen-zhan1; He Jie-ying1; Zhang Lan-jie1,2
作者部门微波遥感部
发表期刊JOURNAL OF TROPICAL METEOROLOGY
2018
卷号24期号:2页码:151
DOI10.16555/j.1006-8775.2018.02.004
ISSN1006-8775
语种英语
关键词Fengyun-3C satellite Microwave Temperature Sounder-II microwave humidity and temperature sounder one-dimensional variational retrieval algorithm neural networks retrieval algorithm
摘要The Microwave Temperature Sounder-II (MWTS-II) and Microwave Humidity and Temperature Sounder (MWHTS) onboard the Fengyun-3C (FY-3C) satellite can be used to detect atmospheric temperature profiles. The MWTS-II has 13 temperature sounding channels around the 60 GHz oxygen absorption band and the MWHTS has 8 temperature sounding channels around the 118.75 GHz oxygen absorption line. The data quality of the observed brightness temperatures can be evaluated using atmospheric temperature retrievals from the MWTS-II and MWHTS observations. Here, the bias characteristics and corrections of the observed brightness temperatures are described. The information contents of observations are calculated, and the retrieved atmospheric temperature profiles are compared using a neural network (NN) retrieval algorithm and a one-dimensional variational inversion (1D-var) retrieval algorithm. The retrieval results from the NN algorithm show that the accuracy of the MWTS-II retrieval is higher than that of the MWHTS retrieval, which is consistent with the results of the radiometric information analysis. The retrieval results from the 1D-var algorithm show that the accuracy of MWTS-II retrieval is similar to that of the MWHTS retrieval at the levels from 850-1,000 hPa, is lower than that of the MWHTS retrieval at the levels from 650-850 hPa and 125-300 hPa, and is higher than that of MWHTS at the other levels. A comparison of the retrieved atmospheric temperature using these satellite observations provides a reference value for assessing the accuracy of atmospheric temperature detection at the 60 GHz oxygen band and 118.75 GHz oxygen line. In addition, based on the comparison of the retrieval results, an optimized combination method is proposed using a branch and bound algorithm for the NN retrieval algorithm, which combines the observations from both the MWTS-II and MWHTS instruments to retrieve the atmospheric temperature profiles. The results show that the optimal combination can further improve the accuracy of MWTS-II retrieval and enhance the detection accuracy of atmospheric temperatures near the surface.
收录类别SCI
引用统计
文献类型期刊论文
条目标识符http://ir.nssc.ac.cn/handle/122/6539
专题微波遥感部
作者单位1.Chinese Acad Sci, Natl Space Sci Ctr, Key Lab Microwave Remote Sensing, Beijing 100190, Peoples R China;
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714
He Qiu-rui,Wang Zhen-zhan,He Jie-ying,et al. A COMPARISON OF THE RETRIEVAL OF ATMOSPHERIC TEMPERATURE PROFILES USING OBSERVATIONS OF THE 60 GHZ AND 118.75 GHZ ABSORPTION LINES[J]. JOURNAL OF TROPICAL METEOROLOGY,2018,24(2):151.
APA He Qiu-rui,Wang Zhen-zhan,He Jie-ying,&Zhang Lan-jie.(2018).A COMPARISON OF THE RETRIEVAL OF ATMOSPHERIC TEMPERATURE PROFILES USING OBSERVATIONS OF THE 60 GHZ AND 118.75 GHZ ABSORPTION LINES.JOURNAL OF TROPICAL METEOROLOGY,24(2),151.
MLA He Qiu-rui,et al."A COMPARISON OF THE RETRIEVAL OF ATMOSPHERIC TEMPERATURE PROFILES USING OBSERVATIONS OF THE 60 GHZ AND 118.75 GHZ ABSORPTION LINES".JOURNAL OF TROPICAL METEOROLOGY 24.2(2018):151.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
2018242151.pdf(1124KB)期刊论文出版稿开放获取CC BY-NC-SA请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[He Qiu-rui]的文章
[Wang Zhen-zhan]的文章
[He Jie-ying]的文章
百度学术
百度学术中相似的文章
[He Qiu-rui]的文章
[Wang Zhen-zhan]的文章
[He Jie-ying]的文章
必应学术
必应学术中相似的文章
[He Qiu-rui]的文章
[Wang Zhen-zhan]的文章
[He Jie-ying]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。