干旱区生态环境知识资源中心(Arid): Dedicated satellite remote sensing combined with global navigation satellite system data used to remotely measure the status of land desertification

Arid

DOI	10.1117/1.JRS.16.015501
	Dedicated satellite remote sensing combined with global navigation satellite system data used to remotely measure the status of land desertification
	Luo, Shouyu; Cao, Xinliang; Yang, Pengju; Zhao, Na
通讯作者	Cao, XL
来源期刊	JOURNAL OF APPLIED REMOTE SENSING
EISSN	1931-3195
出版年	2022
卷号	16 期号:1
英文摘要	Desert use and its management play a significant role in the conservation of land resources. The premise of developing and using deserts based on local conditions includes managing the physical characteristics of sandy desert land. We explore the various achievements of remote sensing of bare soil moisture and, specifically, employ two methods involving the remote sensing of surface physical characteristics, dynamic measurements, and Global Navigation Satellite System-Reflectometry (GNSS-R) sensing by satellite. Some observation parameters of the Earth's surface emissivity are summarized, which were attained through remote observations. In addition, the bright temperature inversion model on the soil temperature, moisture content, and texture, and the GNSS-R soil moisture sensor and inversion model were analyzed. The influence of horizontal polarization of the surface roughness on the results of dedicated satellite measurement of emissivity was also analyzed. Further, a sensing separation model of soil moisture particle size for GNSS-R was derived. Soil moisture is related to soil reflectivity. The soil particle size determines soil porosity, which is directly related to the evaporation rate of water and affects the surface temperature, thereby affecting soil emissivity. We determined that a level of complementarity exists between the enhancement of emissivity and attenuation of reflectivity by roughness as well as between the emissivity of dedicated satellite measurement line polarization and the reflectivity of GNSS-R measurement with circular polarization. Based on this complementarity, a method of GNSS-R and dedicated satellite collaborative measurement of soil texture using satellite data is proposed. The experimental results show that the two methods are sensitive to the soil moisture content, but the sensitivity to the mixed components of sandy soil is very poor. Both the sensitivity of GNSS-R sensing to sand particle size and sand surface temperature are better than those of dedicated satellite sensing. (C) 2022 Society of Photo-Optical Instrumentation Engineers (SPIE)
英文关键词	active microwave passive microwave remote sensing desertification land surface temp soil moisture
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000777198700046
WOS关键词	SURFACE SOIL-MOISTURE ; L-BAND ; MICROWAVE EMISSION ; MODEL
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
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/393287
推荐引用方式 GB/T 7714	Luo, Shouyu,Cao, Xinliang,Yang, Pengju,et al. Dedicated satellite remote sensing combined with global navigation satellite system data used to remotely measure the status of land desertification[J],2022,16(1).
APA	Luo, Shouyu,Cao, Xinliang,Yang, Pengju,&Zhao, Na.(2022).Dedicated satellite remote sensing combined with global navigation satellite system data used to remotely measure the status of land desertification.JOURNAL OF APPLIED REMOTE SENSING,16(1).
MLA	Luo, Shouyu,et al."Dedicated satellite remote sensing combined with global navigation satellite system data used to remotely measure the status of land desertification".JOURNAL OF APPLIED REMOTE SENSING 16.1(2022).