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	Errors analysis on temperature and emissivity determination from hyperspectral thermal infrared data
	OuYang, Xiaoying1,2; Wang, Ning1,2; Wu, Hua1,2; Li, Zhao-Liang1,3
刊名	Optics express
	2010-01-18
卷号	18期号:2页码:544-550
ISSN号	1094-4087
DOI	10.1364/oe.18.000544
通讯作者	Ouyang, xiaoying()
英文摘要	Sensitivity analysis of temperature-emissivity separation method commonly applied to hyperspectral data to various sources of errors is performed in this paper. in terms of resulting errors in the process of retrieving surface temperature, results show that: (1) satisfactory results can be obtained for heterogeneous land surfaces and retrieval error of surface temperature is small enough to be neglected for all atmospheric conditions. (2) separation of atmospheric downwelling radiance from at-ground radiance is not very sensitive to the uncertainty of column water vapor (wv) in the atmosphere. the errors in land surface temperature retrievals from at-ground radiance with the drri method due to the uncertainty in atmospheric downwelling radiance vary from -0.2 to 0.6k if the uncertainty of wv is within 50% of the actual wv; (3) impact of the errors generated by the poor atmospheric corrections is significant, implying that a well-done atmospheric correction is indeed required to obtain accurate at-ground radiance from at-satellite radiance for successful separation of land-surface temperature and emissivity. (c) 2010 optical society of america
WOS研究方向	Optics
WOS类目	Optics
语种	英语
出版者	OPTICAL SOC AMER
WOS记录号	WOS:000273860400015
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2413240
专题	中国科学院大学
通讯作者	OuYang, Xiaoying
作者单位	1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, Beijing 100101, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 3.Lab Sci Image Informat & Teledetect, UMR7005, F-67412 Illkirch Graffenstaden, France
推荐引用方式 GB/T 7714	OuYang, Xiaoying,Wang, Ning,Wu, Hua,et al. Errors analysis on temperature and emissivity determination from hyperspectral thermal infrared data[J]. Optics express,2010,18(2):544-550.
APA	OuYang, Xiaoying,Wang, Ning,Wu, Hua,&Li, Zhao-Liang.(2010).Errors analysis on temperature and emissivity determination from hyperspectral thermal infrared data.Optics express,18(2),544-550.
MLA	OuYang, Xiaoying,et al."Errors analysis on temperature and emissivity determination from hyperspectral thermal infrared data".Optics express 18.2(2010):544-550.

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