| A new formula on the Fresnel reflectance and its application in microwave remote sensing |
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| 引用本文： | XU Qing & LIU Yuguang Key Laboratory of Physical Oceanography of the Ministry of Education,Ocean University of China,Qingdao 266003,China. A new formula on the Fresnel reflectance and its application in microwave remote sensing[J]. 中国科学D辑(英文版), 2004, 47(11): 1045-1052. DOI: 10.1360/03yd0055 |
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| 作者姓名： | XU Qing & LIU Yuguang Key Laboratory of Physical Oceanography of the Ministry of Education Ocean University of China Qingdao 266003 China |
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| 作者单位： | XU Qing & LIU Yuguang Key Laboratory of Physical Oceanography of the Ministry of Education，Ocean University of China，Qingdao 266003，China |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | As an important physical parameter in the elec-tromagnetic (E-M) theory, the Fresnel reflectance isabsolutely a necessary variable in oceanic remotesensing. For example, the thermal-infrared emissivityof sea surface temperature (SST), and the microwavetheory of passive remote sensing of SST and sea sur-face salinity (SSS) are both connected with it[1—7]. Themicrowave theory of active remote sensing of sea sur-face wind speed is also related to the Fresnel reflec-tance[8—15]. The Fresne…
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A new formula on the Fresnel reflectance and its application in microwave remote sensing |
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| Qing Xu,Yuguang Liu. A new formula on the Fresnel reflectance and its application in microwave remote sensing[J]. Science in China(Earth Sciences), 2004, 47(11): 1045-1052. DOI: 10.1360/03yd0055 |
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| Authors: | Qing Xu Yuguang Liu |
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| Affiliation: | Key Laboratory of Physical Oceanography of the Ministry of Education, Ocean University of China, Qingdao 266003, China |
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| Abstract: | A new formula on the Fresnel reflectance is derived based on our understanding of the complex index of refraction and continuity condition of the E-M waves across the interface between two media. The imaginary component of the complex index of refraction is related to the attenuation of the E-M waves propagating in a medium. It does not denote the phase of the E-M waves. The traditional derivation confuses the physical meaning of the imaginary component of the complex index of refraction. The derived formula on the Fresnel reflectance can be used to obtain the emissivity of sea surface, which is useful to retrieve sea surface temperature and sea surface salinity in the microwave remote sensing. |
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| Keywords: | reflectance refraction microwaves optics remote sensing. |
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