气候变化领域集成服务门户(CCPortal): Evaluation of AMSR-E retrievals and GLDAS simulations against observations of a soil moisture network on the central Tibetan Plateau

CCPortal

DOI	10.1002/jgrd.50301
	Evaluation of AMSR-E retrievals and GLDAS simulations against observations of a soil moisture network on the central Tibetan Plateau
	Chen, Yingying; Yang, Kun; Qin, Jun; Zhao, Long; Tang, Wenjun; Han, Menglei
通讯作者	Chen, YY (通讯作者)
发表日期	2013
ISSN	2169-897X
EISSN	2169-8996
起始页码	4466
结束页码	4475
卷号	118 期号:10
英文摘要	A multi-scale soil moisture and temperature monitoring network, consisting of 55 soil moisture and temperature measurement stations, has been established in central Tibetan Plateau (TP). In this study, the station-averaged surface soil moisture data from the network are used to evaluate four soil moisture products retrieved from the Advanced Microwave Scanning Radiometer-Earth Observing System (AMSR-E) and four land surface modeling products from the Global Land Data Assimilation System (GLDAS). Major findings are (1) none of the four AMSR-E products provides reliable estimates in the unfrozen season, in terms of the mission requirement of the root mean square error (RMSE)<0.06m(3)m(-3). These algorithms either evidently overestimate soil moisture or obviously underestimate it, although some of them showed the soil moisture dynamic range, indicating that the retrieval algorithms have much space to be improved for the cold semi-arid regions. (2) The four GLDAS models tend to systematically underestimate the surface soil moisture (0-5cm) while well simulate the soil moisture for 20-40cm layer. In comparison with the satellite surface soil moisture products, three among the four models give low RMSE and BIAS values, but still falling out of the acceptable range. The causes for the modeling biases in this cold region were discussed.
关键词	IN-SITU APPROPRIATE PARAMETERIZATION VALIDATION MODEL REGIONS STATE
英文关键词	soil moisture; AMSR-E; GLDAS; Tibetan Plateau
语种	英语
WOS研究方向	Meteorology & Atmospheric Sciences
WOS类目	Meteorology & Atmospheric Sciences
WOS记录号	WOS:000325272000040
来源期刊	JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/258122
推荐引用方式 GB/T 7714	Chen, Yingying,Yang, Kun,Qin, Jun,et al. Evaluation of AMSR-E retrievals and GLDAS simulations against observations of a soil moisture network on the central Tibetan Plateau[J]. 中国科学院青藏高原研究所,2013,118(10).
APA	Chen, Yingying,Yang, Kun,Qin, Jun,Zhao, Long,Tang, Wenjun,&Han, Menglei.(2013).Evaluation of AMSR-E retrievals and GLDAS simulations against observations of a soil moisture network on the central Tibetan Plateau.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,118(10).
MLA	Chen, Yingying,et al."Evaluation of AMSR-E retrievals and GLDAS simulations against observations of a soil moisture network on the central Tibetan Plateau".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 118.10(2013).