Estimation of volumetric surface soil moisture content using microwave-calibrated soil evaporative efficiency information

doi:10.1080/2150704X.2020.1795295

	Estimation of volumetric surface soil moisture content using microwave-calibrated soil evaporative efficiency information
	Xiu, Hongling 1,2; Zhu, Wenbin 2; Yang, Fengyun 1; Wei, Jiaxing 1,2; Wang, Feng 3
刊名	REMOTE SENSING LETTERS
	2020-10-02
卷号	11 期号:10 页码:923-932
ISSN号	2150-704X
DOI	10.1080/2150704X.2020.1795295
通讯作者	Yang, Fengyun(yfy196507@163.com)
英文摘要	Soil moisture (SM) is a critical variable in energy and water partitioning at the interface between the land surface and atmosphere. In this study, we provided a robust method to retrieve soil moisture using optimal remotely sensed soil evaporative efficiency (SEE) information. Specifically, SEE was deduced from the triangle space constituted by remotely sensed land surface temperature (LST) and fractional vegetation cover (Fc). Theoretical solutions of the dry and wet boundaries were derived by annual-scale optimization and microwave SM calibration. The two limits of SM were obtained by linear fit function between SEE and microwave-based SM. The proposed method was validated at the Liaoning Province of China in the year 2011 by using MODerate Resolution Imaging Spectroradiometer (MODIS) and Soil Moisture and Ocean Salinity (SMOS) satellite images as input. Results indicated that the new method has not only bypassed the complex parametric scheme in the calculation of boundaries within the LST-Fc feature space but also performed superior in the estimation of soil moisture status at all-sky days. Besides, the optimal method has reproduced the spatial and temporal patterns of soil moisture reasonably well, with a root mean square error of 0.07 m(3) m(-3). Therefore, the proposed method can be regarded as a suitable tool to provide accurate and continuous monitoring of soil moisture.
资助项目	Graduate science and technology innovation project of University of Science and Technology Liaoning[LKDYC201822]
WOS关键词	DOWNSCALING APPROACH ; AIR-TEMPERATURE ; TRAPEZOID MODEL ; WATER
WOS研究方向	Remote Sensing ; Imaging Science & Photographic Technology
语种	英语
出版者	TAYLOR & FRANCIS LTD
WOS记录号	WOS:000553690500001
资助机构	Graduate science and technology innovation project of University of Science and Technology Liaoning
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/158322]
专题	中国科学院地理科学与资源研究所
通讯作者	Yang, Fengyun
作者单位	1.Univ Sci & Technol Liaoning, Sch Civil Engn, Anshan 114051, Peoples R China 2.Chinese Acad Sci, Key Lab Water Cycle & Related Land Surface Proc, Beijing, Peoples R China 3.Liaoning Meteorol Bur, Prov Geospatial Applicat Ctr, Shenyang, Peoples R China
推荐引用方式 GB/T 7714	Xiu, Hongling,Zhu, Wenbin,Yang, Fengyun,et al. Estimation of volumetric surface soil moisture content using microwave-calibrated soil evaporative efficiency information[J]. REMOTE SENSING LETTERS,2020,11(10):923-932.
APA	Xiu, Hongling,Zhu, Wenbin,Yang, Fengyun,Wei, Jiaxing,&Wang, Feng.(2020).Estimation of volumetric surface soil moisture content using microwave-calibrated soil evaporative efficiency information.REMOTE SENSING LETTERS,11(10),923-932.
MLA	Xiu, Hongling,et al."Estimation of volumetric surface soil moisture content using microwave-calibrated soil evaporative efficiency information".REMOTE SENSING LETTERS 11.10(2020):923-932.