Soil moisture experiment in the Luan River supporting new satellite mission opportunities

doi:10.1016/j.rse.2020.111680

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所 > 数字山地与遥感应用中心

	Soil moisture experiment in the Luan River supporting new satellite mission opportunities
	Zhao Tianjie 16; Shi Jiancheng 16; Lv Liqing 15; Xu Hongxin 15; Chen Deqing 14; Cui Qian 14; Jackson Thomas J.13; Yan Guangjian 12; Jia Li 16; Chen Liangfu 16
刊名	REMOTE SENSING OF ENVIRONMENT
	2020-04-01
卷号	240 页码:111680
关键词	High-speed railway Expansive andesite Heave deformation Lateral swelling pressure Inclination angle Deformation attenuation
ISSN号	0034-4257
DOI	10.1016/j.rse.2020.111680
通讯作者	Shi, Jiancheng(shijc@radi.ac.cn)
文献子类	Article
英文摘要	The Soil Moisture Experiment in the Luan River (SMELR) was conducted from 2017 to 2018 in the semi-arid Luan River watershed located in the North of China. One of the objectives of SMELR is to serve as an assessment tool and demonstration for a new Terrestrial Water Resources Satellite (TWRS) concept with one-dimensional synthetic aperture microwave techniques, for which soil moisture retrieval under variable satellite observing configurations (mainly in terms of incidence angels) is the greatest challenge. This proposed mission is targeted to provide continuity for the current satellite L-band microwave observations, and further improve the accuracy and spatial resolution of soil moisture mapping through the synergistic use of active, passive and optical remote sensing data. Multi-resolution, multi-angle and multi-spectral airborne data were obtained four times over a 70 km by 12 km area in the Shandian River basin, and one time over a 165 km by 5 km area that includes the Xiaoluan River basin. The near surface soil moisture (0 cm-5 cm) was measured extensively on the ground in fifty 1 km by 2 km quadrats (targeted to compare with the airborne radiometer), and two hundred and fifty 200 m by 200 m quadrats corresponding to radar observations. Two networks were established for continuous measurement of the soil moisture and temperature profile (3 cm, 5 cm, 10 cm, 20 cm, 50 cm) and precipitation in the Shandian and Xiaoluan River basin, respectively. Supporting ground measurements also included ground temperature, vegetation water content, surface roughness, continuous measurement of microwave emission and backscatter at a pasture site, reflectance of various land cover types, evapotranspiration and aerosol observations. Preliminary results within the experimental area indicate that (1) the near surface soil moisture spatial variability at a 200 m scale was up to similar to 0.1 cm(3)/cm(3) at an intermediate value of similar to 0.35 cm(3)/cm(3). (2) The difference of soil and vegetation temperature in grass and croplands reach its maximum of 11 K around solar noon time, and the soil temperature gradient is largest at around 15 P.M. (3) Both the airborne and ground measurements cover a wide range of conditions. The L-band active and passive observations exhibit a large variation of similar to 30 dB and similar to 80 K, respectively, corresponding to soil moisture range from 0.1 cm(3)/cm(3) to 0.5 cm(3)/cm(3). The sensitivity of both active and passive data to soil moisture is compared at corresponding spatial resolutions and show high information complementarity for better accuracy and resolution soil moisture retrieval.
电子版国际标准刊号	1879-0704
资助项目	National Basic Research Program of China[2015CB953701] ; National Key Research and Development Program of China[2016YFE0117300] ; 13th Five-Year Plan of Civil Aerospace Technology Advanced Research Projects[Y7D0070038] ; National Natural Science Foundation of China[41671355] ; Youth Innovation Promotion Association[2016061]
WOS关键词	SEMIARID ENVIRONMENT ; MICROWAVE RADIOMETER ; BAND ; RETRIEVAL ; SURFACE ; VALIDATION ; VEGETATION ; MODEL ; EMISSION ; WATER
WOS研究方向	Environmental Sciences & Ecology ; Remote Sensing ; Imaging Science & Photographic Technology
语种	英语
出版者	ELSEVIER SCIENCE INC
WOS记录号	WOS:000523955300037
资助机构	National Basic Research Program of China ; National Key Research and Development Program of China ; 13th Five-Year Plan of Civil Aerospace Technology Advanced Research Projects ; National Natural Science Foundation of China ; Youth Innovation Promotion Association
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/34286]
专题	成都山地灾害与环境研究所_数字山地与遥感应用中心
通讯作者	Shi Jiancheng
作者单位	1.Tsinghua Univ, Dept Earth Syst Sci, Beijing, Peoples R China; 2.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Beijing, Peoples R China 3.Univ Elect Sci & Technol China, Sch Automat Engn, Chengdu, Sichuan, Peoples R China; 4.Shandong Agr Univ, Coll Informat Sci & Engn, Tai An, Shandong, Peoples R China; 5.Henan Polytech Univ, Sch Surveying & Land Informat Engn, Jiaozuo, Henan, Peoples R China; 6.Minist Water Conservancy & Power, Beijing, Peoples R China; 7.Chinese Acad Sci, Inst Mt Hazards & Environm, Beijing, Peoples R China; 8.Hohai Univ, Coll Hydrol & Water Resources, Nanjing, Jiangsu, Peoples R China; 9.China Inst Water Resources & Hydropower Res, Beijing, Peoples R China; 10.Southwest Jiaotong Univ, Fac Geosci & Environm Engn, Chengdu, Sichuan, Peoples R China;
推荐引用方式 GB/T 7714	Zhao Tianjie,Shi Jiancheng,Lv Liqing,et al. Soil moisture experiment in the Luan River supporting new satellite mission opportunities[J]. REMOTE SENSING OF ENVIRONMENT,2020,240:111680.
APA	Zhao Tianjie.,Shi Jiancheng.,Lv Liqing.,Xu Hongxin.,Chen Deqing.,...&Zhang Ziqian.(2020).Soil moisture experiment in the Luan River supporting new satellite mission opportunities.REMOTE SENSING OF ENVIRONMENT,240,111680.
MLA	Zhao Tianjie,et al."Soil moisture experiment in the Luan River supporting new satellite mission opportunities".REMOTE SENSING OF ENVIRONMENT 240(2020):111680.