干旱区生态环境知识资源中心(Arid): Soil moisture experiment in the Luan River supporting new satellite mission opportunities

Arid

DOI	10.1016/j.rse.2020.111680
	Soil moisture experiment in the Luan River supporting new satellite mission opportunities
	Zhao, Tianjie 1; Shi, Jiancheng 1; Lv, Liqing 2; Xu, Hongxin 2; Chen, Deqing 3; Cui, Qian 3; Jackson, Thomas J.4; Yan, Guangjian 5; Jia, Li 1; Chen, Liangfu 1; Zhao, Kai 6; Zheng, Xingming 6; Zhao, Limin 1; Zheng, Chaolei 1; Ji, Dabin 1; Xiong, Chuan 7; Wang, Tianxing 1; Li, Rui 1; Pan, Jinmei 1; Wen, Jianguang 1; Yu, Chao 1; Zheng, Yaomin 1; Jiang, Lingmei 5; Chai, Linna 5; Lu, Hui 8; Yao, Panpan 8; Ma, Jianwei 9; Lv, Haishen 10; Wu, Jianjun 5; Zhao, Wei 11,12; Yang, Na 13; Guo, Peng 14; Li, Yuxia 15; Hu, Lu 1; Geng, Deyuan 1; Zhang, Ziqian 16
通讯作者	Shi, Jiancheng
来源期刊	REMOTE SENSING OF ENVIRONMENT
ISSN	0034-4257
EISSN	1879-0704
出版年	2020
卷号	240
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.
英文关键词	Terrestrial Water Resources Satellite Soil moisture Airborne experiment L-band active and passive Luan River
类型	Article
语种	英语
国家	Peoples R China ; USA
收录类别	SCI-E
WOS记录号	WOS:000523955300037
WOS关键词	SEMIARID ENVIRONMENT ; MICROWAVE RADIOMETER ; BAND ; SURFACE ; RETRIEVAL ; VALIDATION ; VEGETATION ; MODEL ; EMISSION ; WATER
WOS类目	Environmental Sciences ; Remote Sensing ; Imaging Science & Photographic Technology
WOS研究方向	Environmental Sciences & Ecology ; Remote Sensing ; Imaging Science & Photographic Technology
来源机构	北京师范大学 ; 清华大学 ; 河海大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/315443
作者单位	1.Chinese Acad Sci, Aerosp Informat Res Inst, State Key Lab Remote Sensing Sci, 20 Datun Rd, Beijing 100101, Peoples R China; 2.Shanghai Acad Spaceflight Technol, Shanghai, Peoples R China; 3.Minist Water Resources China, Informat Ctr, Beijing, Peoples R China; 4.USDA ARS, Hydrol & Remote Sensing Lab, Beltsville, MD USA; 5.Beijing Normal Univ, Fac Geog Sci, Beijing, Peoples R China; 6.Chinese Acad Sci, Northeast Inst Geog & Agroecol, Beijing, Peoples R China; 7.Southwest Jiaotong Univ, Fac Geosci & Environm Engn, Chengdu, Sichuan, Peoples R China; 8.Tsinghua Univ, Dept Earth Syst Sci, Beijing, Peoples R China; 9.China Inst Water Resources & Hydropower Res, Beijing, Peoples R China; 10.Hohai Univ, Coll Hydrol & Water Resources, Nanjing, Jiangsu, Peoples R China; 11.Chinese Acad Sci, Inst Mt Hazards & Environm, Beijing, Peoples R China; 12.Minist Water Conservancy & Power, Beijing, Peoples R China; 13.Henan Polytech Univ, Sch Surveying & Land Informat Engn, Jiaozuo, Henan, Peoples R China; 14.Shandong Agr Univ, Coll Informat Sci & Engn, Tai An, Shandong, Peoples R China; 15.Univ Elect Sci & Technol China, Sch Automat Engn, Chengdu, Sichuan, Peoples R China; 16.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Beijing, 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]. 北京师范大学, 清华大学, 河海大学,2020,240.
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.
MLA	Zhao, Tianjie,et al."Soil moisture experiment in the Luan River supporting new satellite mission opportunities".REMOTE SENSING OF ENVIRONMENT 240(2020).