干旱区生态环境知识资源中心(Arid): Coefficients optimization of the GLASS broadband emissivity based on FTIR and MODIS data over the Taklimakan Desert

Arid

DOI	10.1038/s41598-019-54982-6
	Coefficients optimization of the GLASS broadband emissivity based on FTIR and MODIS data over the Taklimakan Desert
	Yalkun, Aynigar 1,2; Mamtimin, Ali 2; Liu, Suhong 1,2; Yang, Fan 3; He, Qing 3; Qi, Feifei 1,2; Liu, Yongqiang 1,2
通讯作者	Liu, Yongqiang
来源期刊	SCIENTIFIC REPORTS
ISSN	2045-2322
出版年	2019
卷号	9
英文摘要	In this paper, the Taklimakan Desert land surface emissivity measured by portable Fourier Transform thermal InfraRed spectroscopy (FTIR) was used to re-estimate Global LAnd Surface Satellite (GLASS) BroadBand Emissivity (BBE) and Moderate Resolution Imaging Spectroradiometer (MODIS) BBE optimal coefficients equations. In addition, the revised BBE equations of both GLASS and MODIS with the optimized coefficients were obtained. Comparing the FTIR and MODIS BBE data with the values retrieved before and after the revised GLASS BBE equation, it was found that the revised GLASS BBE equation is more accurate than the original one. First, according to the error analysis with FTIR data, the value of R-2 is increased from 0.4 to 0.9, and the Root Mean Square Error (RMSE) and Bias are reduced by 1 and 3 magnitude orders, respectively. Second, with MODIS BBE data, the value of R-2 is increased from 0.6 to 0.9, the RMSE and Bias are reduced by 1 and 2 magnitude orders, respectively. Finally, the Taklimakan Desert BBE was calculated using the revised GLASS BBE equation. The results showed that the BBE values are between 0.890 and 0.920 in the desert center, between 0.920 and 0.950 in the sparse vegetation areas, and between 0.950 and 0.980 in the oasis edges.
类型	Article
语种	英语
国家	Peoples R China
开放获取类型	gold, Green Published
收录类别	SCI-E
WOS记录号	WOS:000501582900001
WOS关键词	LAND-SURFACE EMISSIVITY ; SOIL-MOISTURE ; TEMPERATURE ; RETRIEVAL ; MODELS
WOS类目	Multidisciplinary Sciences
WOS研究方向	Science & Technology - Other Topics
EI主题词	2019-12-05
来源机构	新疆大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/311600
作者单位	1.Xinjiang Univ, Coll Resources & Environm Sci, Urumqi 830046, Peoples R China; 2.China Meteorol Adm, Inst Desert Meteorol, Urumqi 830002, Peoples R China; 3.Xinjiang Meteorol Bur, Urumqi 830002, Peoples R China
推荐引用方式 GB/T 7714	Yalkun, Aynigar,Mamtimin, Ali,Liu, Suhong,et al. Coefficients optimization of the GLASS broadband emissivity based on FTIR and MODIS data over the Taklimakan Desert[J]. 新疆大学,2019,9.
APA	Yalkun, Aynigar.,Mamtimin, Ali.,Liu, Suhong.,Yang, Fan.,He, Qing.,...&Liu, Yongqiang.(2019).Coefficients optimization of the GLASS broadband emissivity based on FTIR and MODIS data over the Taklimakan Desert.SCIENTIFIC REPORTS,9.
MLA	Yalkun, Aynigar,et al."Coefficients optimization of the GLASS broadband emissivity based on FTIR and MODIS data over the Taklimakan Desert".SCIENTIFIC REPORTS 9(2019).