干旱区生态环境知识资源中心(Arid): Spatio-temporal analysis of colored dissolved organic matter over Ebinur Lake in Xinjiang, China

Arid

DOI	10.1016/j.ecoinf.2023.102339
	Spatio-temporal analysis of colored dissolved organic matter over Ebinur Lake in Xinjiang, China
	Cao, Naixin; Zhang, Fei; Liu, Changjiang; Chan, Ngai Weng; Tan, Mou Leong; Shi, Jingchao; Lin, Xingwen
通讯作者	Zhang, F
来源期刊	ECOLOGICAL INFORMATICS
ISSN	1574-9541
EISSN	1878-0512
出版年	2023
卷号	78
英文摘要	A lack of water quality monitoring stations in arid regions makes it difficult to estimate the exact level of water pollution. Satellite technology is crucial for monitoring the water quality of salt lakes, but due to the diversity of terrestrial water bodies, it is challenging to establish relationships between lake water color parameters and remote sensing reflectance. This study aims to evaluate the reliability of the colored Quasi-Analytical Algorithm Dissolved Organic Matter (QAA-CDOM) model over Ebinur Lake. The absorption coefficient measured on May 19, 2021 was used to analyze the optical properties of Ebinur Lake. The findings show that the QAA-CDOM model performed well in estimating the absorption coefficient of CDOM at 443 nm, with the r2 and RMSE values of 0.69 and 0.12 m-1, respectively. The Landsat 8 OLI data and QAA-CDOM model were then used to derive the spatial-temporal characteristics of the CDOM concentration over Ebinur Lake from 2014 to 2021. The concentration of CDOM changes significantly across time and space, ranging from 0 to 2.5 m-1, with the lowest concentration in May and the highest in August. The central region of the lake has a lower concentration of CDOM than the other regions due to the reflectance of the shallow parts of the lake. This study clarified the inherent optical characteristics of saline lakes and proved the applicability of using the QAA-CDOM model to monitor surface water quality in arid regions of China. This research may be useful for future analyses of the carbon cycle calculations in salt lakes in arid regions.
英文关键词	Arid Salt lakes Landsat 8 CDOM Ebinur Lake
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001097196900001
WOS关键词	OPTICAL-PROPERTIES ; CDOM ; IMAGERY ; INLAND ; WATERS ; CARBON ; ABSORPTION ; DOC
WOS类目	Ecology
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/395996
推荐引用方式 GB/T 7714	Cao, Naixin,Zhang, Fei,Liu, Changjiang,et al. Spatio-temporal analysis of colored dissolved organic matter over Ebinur Lake in Xinjiang, China[J],2023,78.
APA	Cao, Naixin.,Zhang, Fei.,Liu, Changjiang.,Chan, Ngai Weng.,Tan, Mou Leong.,...&Lin, Xingwen.(2023).Spatio-temporal analysis of colored dissolved organic matter over Ebinur Lake in Xinjiang, China.ECOLOGICAL INFORMATICS,78.
MLA	Cao, Naixin,et al."Spatio-temporal analysis of colored dissolved organic matter over Ebinur Lake in Xinjiang, China".ECOLOGICAL INFORMATICS 78(2023).