干旱区生态环境知识资源中心(Arid): The relationship between surface spectral albedo and soil moisture in an arid Gobi area

Arid

DOI	10.1007/s00704-018-2577-3
	The relationship between surface spectral albedo and soil moisture in an arid Gobi area
	Li, Zhenchao 1,2; Yang, Jiaxi 1; Gao, Xiaoqing 1; Yu, Ye 1,2; Zheng, Zhiyuan 3; Liu, Rong 1; Wang, Chao 4; Hou, Xuhong 1; Wei, Zhigang 5
通讯作者	Wei, Zhigang
来源期刊	THEORETICAL AND APPLIED CLIMATOLOGY
ISSN	0177-798X
EISSN	1434-4483
出版年	2019
卷号	136 期号:3-4 页码:1475-1482
英文摘要	Surface albedo is one of the most important properties of underlying surface. However, errors still exist in the calculation of the surface albedo because of complex influencing factors. Understanding the relationship between the surface albedos in different wavebands, and soil moisture will provide theory basis for the parameterization of surface albedos. In this paper, using the data on the spectral radiation and soil moisture observation in Dunhuang, China, from August to October 2016, the spectral radiation characteristics of the underlying surface in this arid Gobi area, the variation characteristics of the surface spectral albedo and its relationship with 2-cm soil moisture were analyzed. The results show that the decrease of the angle of the sun due to seasonal change is the reason of the decrease of NIR, GR, VIS, and UV. The surface albedos in different wavebands are affected by the surface soil moisture, and they exhibit obvious anti-correlations. During the observation period, the average surface albedo of NIR, GR, VIS, and UV is 0.263, 0.230, 0.204, and 0.096, respectively, while the correlation coefficient with 2-cm soil moisture is -0.522, -0.678, -0.804, and-0.812, respectively. When solar altitude is larger than 40 degrees, the correlation coefficients between the NIR, GR, VIS, and UV surface albedos and 2-cm soil moisture are becoming larger. And the linear regression coefficients between the NIR, GR, VIS, and UV surface albedos and 2-cm soil moisture are becoming smaller. Shorter wavelengths correspond to stronger relationships between the surface albedo and soil moisture. At longer wavelengths, the decrease in the surface albedo due to the increase in soil moisture is sharper.
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000467151000050
WOS关键词	THERMAL PARAMETERS ; VARIABILITY
WOS类目	Meteorology & Atmospheric Sciences
WOS研究方向	Meteorology & Atmospheric Sciences
来源机构	中国科学院西北生态环境资源研究院 ; 北京师范大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/219077
作者单位	1.Chinese Acad Sci, Key Lab Land Surface Proc & Climate Change Cold &, Cold & Arid Regions Environm & Engn Res Inst, Lanzhou, Gansu, Peoples R China; 2.Chinese Acad Sci, Pingliang Land Surface Proc & Severe Weather Res, Pingliang, Gansu, Peoples R China; 3.Sun Yat Sen Univ, Sch Atmospher Sci, Zhuhai, Peoples R China; 4.Chengdu Univ Informat Technol, Coll Atmospher Sci, Plateau Atmosphere & Environm Key Lab Sichuan Pro, Chengdu, Sichuan, Peoples R China; 5.Beijing Normal Univ, State Key Lab Earth Surface Proc & Resource Ecol, Fac Geog Sci, XinjieKouWaidaJie 19, Beijing 100875, Peoples R China
推荐引用方式 GB/T 7714	Li, Zhenchao,Yang, Jiaxi,Gao, Xiaoqing,et al. The relationship between surface spectral albedo and soil moisture in an arid Gobi area[J]. 中国科学院西北生态环境资源研究院, 北京师范大学,2019,136(3-4):1475-1482.
APA	Li, Zhenchao.,Yang, Jiaxi.,Gao, Xiaoqing.,Yu, Ye.,Zheng, Zhiyuan.,...&Wei, Zhigang.(2019).The relationship between surface spectral albedo and soil moisture in an arid Gobi area.THEORETICAL AND APPLIED CLIMATOLOGY,136(3-4),1475-1482.
MLA	Li, Zhenchao,et al."The relationship between surface spectral albedo and soil moisture in an arid Gobi area".THEORETICAL AND APPLIED CLIMATOLOGY 136.3-4(2019):1475-1482.