Potential Applicability of SMAP in ECV Soil Moisture Gap-Filling: A Case Study in Europe

doi:10.1109/ACCESS.2020.3009977

	Potential Applicability of SMAP in ECV Soil Moisture Gap-Filling: A Case Study in Europe
	Liu, Yangxiaoyue 2,4; Yang, Yaping 1,3; Jing, Wenlong 2,4
刊名	IEEE ACCESS
	2020
卷号	8 页码:133114-133127
关键词	Microwave radiometry Meteorology Satellite broadcasting Sensors Soil moisture Synthetic aperture radar Soil measurements Gap-filling satellite retrieved soil moisture the essential climate variable soil moisture the soil moisture active passive soil moisture
ISSN号	2169-3536
DOI	10.1109/ACCESS.2020.3009977
通讯作者	Yang, Yaping(yangyp@igsnrr.ac.cn)
英文摘要	The Essential Climate Variable (ECV) soil moisture (SM) datasets, originated from the European Space Agency, have revealed great potential for application in hydrology and agriculture. Hence, it is essential to continuously enhance the data quality and spatial completeness to satisfy the increasing scientific research requirements. In this study, we explore the potential possibility of Soil Moisture Active Passive (SMAP) datasets in filling the gaps of ECV SM. The comprehensive assessment results show that: (1) The data missing percent of gap-filled ECV decreases 20% on average, which can be one step closer to generate a seamlessly covered global land surface SM product with favorable quality. (2) Compared to the original ECV, the gap-filled ECV products express similar good response to the in-situ measurements, suggesting that the SMAP SM products could be taken to efficiently fill the gaps and consistently maintain favorable accuracy at the same time. (3) Compared to the in-situ measurements, the original ECV SM products demonstrate extremely high probability density peak percentages. Fortunately, this eminent high value could be effectively rectified through gap-filling progress using SMAP. Overall, this study conducts objective and detailed evaluation on the performance of applying SMAP to fill the gaps of ECV, and is expected to act as a valuable reference in ECV SM gap-filling method.
资助项目	Strategic Priority Research Program of the Chinese Academy of Sciences (A class)[XDA19020304] ; National Postdoctoral Program for Innovative Talents, China[BX20200100] ; GDAS' Project of Science and Technology Development[2020GDASYL-20200103006] ; GDAS' Project of Science and Technology Development[2020GDASYL-20200104003] ; GDAS' Project of Science and Technology Development[2017GDASCX-0601] ; GDAS' Project of Science and Technology Development[2017GDASCX-0801] ; GDAS' Project of Science and Technology Development[2018GDASCX-0403] ; GDAS' Project of Science and Technology Development[2019GDASYL-0301001] ; GDAS' Project of Science and Technology Development[2019GDASYL-0501001] ; GDAS' Project of Science and Technology Development[2019GDASYL-0502001] ; Guangdong Innovative and Entrepreneurial Research Team Program[2016ZT06D336] ; National Natural Science Foundation of China[41801362] ; Geographic Resources and Ecology Knowledge Service System of China Knowledge Center for Engineering Sciences and Technology[CKCEST-2015-1-4] ; National Data Sharing Infrastructure of Earth System Science ; 13th Five-year Informatization Plan of Chinese Academy of Sciences, Construction of Scientific Data Center System[XXH-13514]
WOS关键词	SMOS ; PRODUCTS ; VALIDATION ; RETRIEVAL ; TEMPERATURE ; NETWORKS
WOS研究方向	Computer Science ; Engineering ; Telecommunications
语种	英语
出版者	IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
WOS记录号	WOS:000554367200001
资助机构	Strategic Priority Research Program of the Chinese Academy of Sciences (A class) ; National Postdoctoral Program for Innovative Talents, China ; GDAS' Project of Science and Technology Development ; Guangdong Innovative and Entrepreneurial Research Team Program ; National Natural Science Foundation of China ; Geographic Resources and Ecology Knowledge Service System of China Knowledge Center for Engineering Sciences and Technology ; National Data Sharing Infrastructure of Earth System Science ; 13th Five-year Informatization Plan of Chinese Academy of Sciences, Construction of Scientific Data Center System
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/158220]
专题	中国科学院地理科学与资源研究所
通讯作者	Yang, Yaping
作者单位	1.Nanjing Normal Univ, Jiangsu Ctr Collaborat Innovat Geog Informat Res, Nanjing 210023, Peoples R China 2.Southern Marine Sci & Engn Guangdong Lab, Guangzhou 511458, Peoples R China 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, Beijing 100101, Peoples R China 4.Guangzhou Inst Geog, Guangdong Open Lab Geospatial Informat Technol &, Key Lab Guangdong Utilizat Remote Sensing & Geog, Engn Technol Ctr Remote Sensing Big Data Applicat, Guangzhou 510070, Peoples R China
推荐引用方式 GB/T 7714	Liu, Yangxiaoyue,Yang, Yaping,Jing, Wenlong. Potential Applicability of SMAP in ECV Soil Moisture Gap-Filling: A Case Study in Europe[J]. IEEE ACCESS,2020,8:133114-133127.
APA	Liu, Yangxiaoyue,Yang, Yaping,&Jing, Wenlong.(2020).Potential Applicability of SMAP in ECV Soil Moisture Gap-Filling: A Case Study in Europe.IEEE ACCESS,8,133114-133127.
MLA	Liu, Yangxiaoyue,et al."Potential Applicability of SMAP in ECV Soil Moisture Gap-Filling: A Case Study in Europe".IEEE ACCESS 8(2020):133114-133127.