Effects of slightly rough surfaces on the brightness temperature of the lunar regolith

	Effects of slightly rough surfaces on the brightness temperature of the lunar regolith
	Chen, Ping 1; Huang, Ping 1; He, Yanchun 1; Wang, Congcong 1; Li, Qingxia 1; Gui, Liangqi 1; Huang, Quanliang 1; Lang, Liang 1; Zheng, Yongchun2 ; Li, Xiongyao 3
刊名	RADIO SCIENCE
	2013-05-01
卷号	48 期号:3 页码:265-273
关键词	slightly rough surface second-order SPM brightness temperature rough stratified medium radiative transfer
英文摘要	Keihm [1984] made a study on the effects of the rough lunar surface on microwave brightness temperature using geometric optics (GO), which is valid only when the microwave wavelength is much smaller than the radius of curvature of the rough surface. This approach is deficient because it has no explicit wavelength dependence. The Chang'E-1 Lunar Orbiter carried out lunar microwave remote sensing of maria where the surface can be regarded as slightly rough, and this has motivated our study. We model the mare regolith as a multilayer planar layered media with a slightly rough top surface, and the temperature profile is retrieved by solving the heat conduction equation. The noncoherent method is utilized to calculate the emission of the multilayer media. To calculate the effect of the rough top surface on brightness temperatures, we use the bistatic transmission coefficients by applying the second-order small perturbation method. Using this model, the microwave brightness temperatures of the Apollo 12 area under different roughness conditions are calculated. It is shown that a slightly rough surface will increase or decrease the microwave radiative brightness temperature of the lunar regolith and that the change is related to the roughness, incidence angle, frequency, and polarization. In the case of measurements made by the Chang'E-1 microwave radiometer, where the incidence angle is 0 degrees, the small-scale roughness will increase the brightness temperature of the lunar regolith.
收录类别	SCI
语种	英语
WOS记录号	WOS:000321823700006
内容类型	期刊论文
源URL	[http://ir.bao.ac.cn/handle/114a11/5871]
专题	国家天文台_月球与深空探测研究部
作者单位	1.Huazhong Univ Sci & Technol, Dept Elect & Informat Engn, Sci & Technol Multispectral Informat Proc Lab, Wuhan 430074, Peoples R China 2.Chinese Acad Sci, Natl Astron Observ, Beijing, Peoples R China 3.Chinese Acad Sci, Inst Geochem, Guiyang, Peoples R China
推荐引用方式 GB/T 7714	Chen, Ping,Huang, Ping,He, Yanchun,et al. Effects of slightly rough surfaces on the brightness temperature of the lunar regolith[J]. RADIO SCIENCE,2013,48(3):265-273.
APA	Chen, Ping.,Huang, Ping.,He, Yanchun.,Wang, Congcong.,Li, Qingxia.,...&Hua, Lei.(2013).Effects of slightly rough surfaces on the brightness temperature of the lunar regolith.RADIO SCIENCE,48(3),265-273.
MLA	Chen, Ping,et al."Effects of slightly rough surfaces on the brightness temperature of the lunar regolith".RADIO SCIENCE 48.3(2013):265-273.