气候变化领域集成服务门户(CCPortal): EVALUATION OF SMAP AND SMOS SOIL MOISTURE PRODUCTS USING DISTRIBUTED GROUND OBSERVATION NETWORK IN COLD AND ARID REGIONS IN THE NORTHWEST OF CHINA

CCPortal

DOI	10.1109/IGARSS39084.2020.9323573
	EVALUATION OF SMAP AND SMOS SOIL MOISTURE PRODUCTS USING DISTRIBUTED GROUND OBSERVATION NETWORK IN COLD AND ARID REGIONS IN THE NORTHWEST OF CHINA
	Wang, Zengyan; Che, Tao; Dai, Liyun
发表日期	2020
起始页码	4731
结束页码	4734
英文摘要	Validation of existing satellite soil moisture (SM) products are critical for retrieval algorithms refinement and high-quality SM datasets achievement. Based on distributed ground observations, accuracy performance of two L-band (1.41GHz) passive microwave remotely sensed SM products of SMAP enhanced level 3 (L3) (SMAP-L3) and the newly published SMOS-INRA-CESBIO (SMOS-IC) are evaluated in Heihe River Basin (HRB) over various land surface types in Northwest China. Results reveals that: both two L-band SM products underestimate over grassland and cropland land cover types in HRB, and the underestimation obviously increases with the increasing vegetation effect. Totally, the SMAP L3 product behaves better in capturing the SM variation with the averaged ubRMSE values of 0.03m(3)/m(3) and high R values above 0.6 in ascending orbits for different land cover types in HRB, while the SMOS-IC retrievals are strongly affected by the severe RFI contamination and algorithm uncertainties which need to be handled before application, especially for the descending product.
英文关键词	soil moisture; validation; SMOS; SMAP
WOS研究方向	Computer Science ; Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Optics
WOS类目	Computer Science, Artificial Intelligence ; Environmental Sciences ; Geosciences, Multidisciplinary ; Remote Sensing ; Optics
WOS记录号	WOS:000664335304143
来源期刊	IGARSS 2020 - 2020 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/241035
作者单位	[Wang, Zengyan] Henan Univ, Collaborat Innovat Ctr Yellow River Civilizat, Minist Educ,Coll Environm & Planning, Key Lab Geospatial Technol Middle & Lower Yellow, Kaifeng 475004, Peoples R China; [Che, Tao; Dai, Liyun] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Wang, Zengyan,Che, Tao,Dai, Liyun. EVALUATION OF SMAP AND SMOS SOIL MOISTURE PRODUCTS USING DISTRIBUTED GROUND OBSERVATION NETWORK IN COLD AND ARID REGIONS IN THE NORTHWEST OF CHINA[J]. 中国科学院西北生态环境资源研究院,2020.
APA	Wang, Zengyan,Che, Tao,&Dai, Liyun.(2020).EVALUATION OF SMAP AND SMOS SOIL MOISTURE PRODUCTS USING DISTRIBUTED GROUND OBSERVATION NETWORK IN COLD AND ARID REGIONS IN THE NORTHWEST OF CHINA.IGARSS 2020 - 2020 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM.
MLA	Wang, Zengyan,et al."EVALUATION OF SMAP AND SMOS SOIL MOISTURE PRODUCTS USING DISTRIBUTED GROUND OBSERVATION NETWORK IN COLD AND ARID REGIONS IN THE NORTHWEST OF CHINA".IGARSS 2020 - 2020 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (2020).