干旱区生态环境知识资源中心(Arid): Linear Retrieval of Microwave Land Surface Emissivity over the Desert Area in January

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	Linear Retrieval of Microwave Land Surface Emissivity over the Desert Area in January
	Guan Yuanhong; Wang Wenjun; Lu Qifeng; Bao Yansong; Zheng Tingwen
通讯作者	Guan, YH (corresponding author), Nanjing Univ Informat Sci & Technol, Sch Math & Stat, Nanjing 210044, Jiangsu, Peoples R China. ; Guan, YH (corresponding author), Nanjing Univ Informat Sci & Technol, Key Lab Meteorol Disaster,Minist Educ,Key Lab Aer, Early Warning & Evaluat Collaborat Innovat Ctr, Meteorol Disaster Predict,Joint Lab Climate Chang, Nanjing 210044, Jiangsu, Peoples R China.
来源期刊	LASER & OPTOELECTRONICS PROGRESS
ISSN	1006-4125
出版年	2020
卷号	57 期号:21
英文摘要	Based on the multivariate function Taylor formula and optimal control principle, first, using the 10.65 GHz vertical polarization data of observed brightness temperature from FY -3C microwave radiation imager and simulated brightness temperature from community radiative transfer model (CRTM), the linear retrievals model between the microwave land surface emissivity and two (four) influencing factors arc constructed in the central part of the Taklimakan Desert (retrieval area) in January. Second, considering the observed brightness temperature as a reference, the land surface emissivity obtained by two kinds of linear retrieval models arc provided to CRTM model to simulate brightness temperature, it is found that the average deviations of the simulated brightness temperatures arc reduced to 56. 36% and 19. 37% of the original simulated brightness temperature, respectively. Finally, in the whole Taklimakan Desert (test area), the time and space independence tests of two kinds of linear retrieval models arc carried out by selecting Jan 18, which is used for retrieval date, and Jan 29, which is not used for retrieval date. The results show that the simulated brightness temperatures of the land surface emissivity obtained by two kinds of linear retrieval models arc still closer to the observation than the original simulated brightness temperature, and the average deviations arc also significantly reduced. The two linear retrieval models arc reasonable and universal for the retrieval of land surface emissivity in the desert area in January, and the linear retrieval model with 1 factors is better than 2 factors.
英文关键词	remote sensing microwave land surface emissivity linear retrieval Taylors formula optimal control principle
类型	Article
语种	中文
收录类别	ESCI
WOS记录号	WOS:000606831300038
WOS关键词	COVER
WOS类目	Engineering, Electrical & Electronic ; Optics
WOS研究方向	Engineering ; Optics
来源机构	南京信息工程大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/352643
作者单位	[Guan Yuanhong; Wang Wenjun; Zheng Tingwen] Nanjing Univ Informat Sci & Technol, Sch Math & Stat, Nanjing 210044, Jiangsu, Peoples R China; [Guan Yuanhong; Bao Yansong] Nanjing Univ Informat Sci & Technol, Key Lab Meteorol Disaster,Minist Educ,Key Lab Aer, Early Warning & Evaluat Collaborat Innovat Ctr, Meteorol Disaster Predict,Joint Lab Climate Chang, Nanjing 210044, Jiangsu, Peoples R China; [Lu Qifeng] China Meteorol Adm, Natl Satellite Meteorol Ctr, Key Open Lab China Remote Sensing Satellite Radia, Beijing 100081, Peoples R China
推荐引用方式 GB/T 7714	Guan Yuanhong,Wang Wenjun,Lu Qifeng,et al. Linear Retrieval of Microwave Land Surface Emissivity over the Desert Area in January[J]. 南京信息工程大学,2020,57(21).
APA	Guan Yuanhong,Wang Wenjun,Lu Qifeng,Bao Yansong,&Zheng Tingwen.(2020).Linear Retrieval of Microwave Land Surface Emissivity over the Desert Area in January.LASER & OPTOELECTRONICS PROGRESS,57(21).
MLA	Guan Yuanhong,et al."Linear Retrieval of Microwave Land Surface Emissivity over the Desert Area in January".LASER & OPTOELECTRONICS PROGRESS 57.21(2020).