Microwave vector radiative transfer equation of a sea foam layer by the second-order Rayleigh approximation

doi:10.1029/2011RS004668

IOCAS-IR > 海洋环流与波动重点实验室

	Microwave vector radiative transfer equation of a sea foam layer by the second-order Rayleigh approximation
	Wei, En-Bo
	2011-09-30
发表期刊	RADIO SCIENCE
卷号	46 期号:0 页码:RS5012
文章类型	Article
摘要	The microwave vector radiative transfer (VRT) equation of a coated spherical bubble layer is derived by means of the second-order Rayleigh approximation field when the microwave wavelength is larger than the coated spherical particle diameter. Meanwhile, the perturbation method is developed to solve the second-order Rayleigh VRT equation for the small ratio of the volume scattering coefficient to the extinction coefficient. As an example, the emissive properties of a sea surface foam layer, which consists of seawater coated bubbles, are investigated. The extinction, absorption, and scattering coefficients of sea foam are obtained by the second-order Rayleigh approximation fields and discussed for the different microwave frequencies and the ratio of inner radius to outer radius of a coated bubble. Our results show that in the dilute limit, the volume scattering coefficient decreases with increasing the ratio of inner radius to outer radius and decreasing the frequencies. It is also found that the microwave emissivity and the extinction coefficient have a peak at very thin seawater coating and its peak value decreases with frequency decrease. Furthermore, with the VRT equation and effective medium approximation of densely coated bubbles, the mechanism of sea foam enhancing the emissivity of a sea surface is disclosed. In addition, excellent agreement is obtained by comparing our VRT results with the experimental data of microwave emissivities of sea surface covered by a sea foam layer at L-band (1.4 GHz) and the Camps' model.
DOI	10.1029/2011RS004668
收录类别	SCI
语种	英语
WOS记录号	WOS:000295609800003
引用统计	被引频次：7[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/25503
专题	海洋环流与波动重点实验室
作者单位	Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China
推荐引用方式 GB/T 7714	Wei, En-Bo. Microwave vector radiative transfer equation of a sea foam layer by the second-order Rayleigh approximation[J]. RADIO SCIENCE,2011,46(0):RS5012.
APA	Wei, En-Bo.(2011).Microwave vector radiative transfer equation of a sea foam layer by the second-order Rayleigh approximation.RADIO SCIENCE,46(0),RS5012.
MLA	Wei, En-Bo."Microwave vector radiative transfer equation of a sea foam layer by the second-order Rayleigh approximation".RADIO SCIENCE 46.0(2011):RS5012.

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文件名称/大小	文献类型	版本类型	开放类型	使用许可
Microwave vector rad（1463KB）	期刊论文	出版稿	限制开放	ODC PDDL	浏览