气候变化领域集成服务门户(CCPortal): Development of a daily soil moisture product for the period of 2002-2011 in Mainland China

CCPortal

DOI	10.1007/s11430-019-9588-5
	Development of a daily soil moisture product for the period of 2002-2011 in Mainland China
	Yang, Kun; Chen, Yingying; He, Jie; Zhao, Long; Lu, Hui; Qin, Jun; Zheng, Donghai; Li, Xin
通讯作者	Yang, K (通讯作者)
发表日期	2020
ISSN	1674-7313
EISSN	1869-1897
起始页码	1113
结束页码	1125
卷号	63 期号:8
英文摘要	Soil moisture is an essential climate variable (ECV) concerned widely. Due to its high spatial variability, it is costly to measure soil moisture at tens of kilometers scale. In this study, a ten-year (2002-2011) daily soil moisture dataset at 0.25 degrees spatial resolution for Mainland China was produced through assimilating the Advanced Microwave Scanning Radiometer for Earth Observing System (AMSR-E) brightness temperature (TB) data into a land surface model (LSM). The obtained soil moisture data was evaluated against soil moisture-measuring networks deployed in two wet areas and one dry area of the Tibetan Plateau. The results show that for the wet areas the accuracy of the soil moisture product obtained from the assimilation is considerably higher than that of both AMSR-E official soil moisture products and land surface simulation results, and for the dry area their accuracy is comparable to each other. The spatial pattern of the soil moisture from the new product is consistent with that of soil porosity from an independent survey-based dataset, further confirming the credibility of the new product. According to this product, the transition regions in China show stronger seasonal variation of soil moisture than dry and wet regions, and drier regions have stronger inter-annual variability of soil moisture than wetter regions, particularly during transitional seasons (spring and autumn). The soil moisture product is accessible at the National Tibetan Plateau Data Center.
关键词	DATA ASSIMILATION SYSTEM LAND-SURFACE PARAMETERIZATION AMSR-E MICROWAVE EMISSION VEGETATION MODEL RETRIEVAL ROUGHNESS NETWORK DATASET
英文关键词	Soil moisture; Microwave signal; Data assimilation; Spatiotemporal variability; Tibetan Plateau
语种	英语
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:000526354200002
来源期刊	SCIENCE CHINA-EARTH SCIENCES
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/259791
推荐引用方式 GB/T 7714	Yang, Kun,Chen, Yingying,He, Jie,et al. Development of a daily soil moisture product for the period of 2002-2011 in Mainland China[J]. 中国科学院青藏高原研究所,2020,63(8).
APA	Yang, Kun.,Chen, Yingying.,He, Jie.,Zhao, Long.,Lu, Hui.,...&Li, Xin.(2020).Development of a daily soil moisture product for the period of 2002-2011 in Mainland China.SCIENCE CHINA-EARTH SCIENCES,63(8).
MLA	Yang, Kun,et al."Development of a daily soil moisture product for the period of 2002-2011 in Mainland China".SCIENCE CHINA-EARTH SCIENCES 63.8(2020).