| 泡沫覆盖的随机粗糙海面的双站散射和热辐射 |
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| 引用本文： | 黄兴忠,殷杰羿.泡沫覆盖的随机粗糙海面的双站散射和热辐射[J].地球物理学报,1995,38(2):163-173. |
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| 作者姓名： | 黄兴忠 殷杰羿 |
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| 作者单位： | 1. 上海复旦大学电子工程系, 上海 200433;
2. 上海华东师范大学电子科学技术系, 200062 |
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| 摘 要： | 从双尺度随机粗糙面的散射理论和矢量辐射传输理论出发，将具有白帽泡沫覆盖的风驱海面模拟成一层离散球形粒子下垫双尺度随机粗糙界面的复合模型．利用Ｐｉｅｒｓｏｎ的半经验海洋波高谱和修正的Ｃｏｘ和Ｍｕｎｋ的坡度分布函数，推导了强风驱使下白帽泡沫覆盖的随机起伏海面的双站散射系数和热发射率，得到了极化的双站散射和热发射与海面各物理参数之间定量的函数关系．数值计算的结果与已有的海洋遥感实验数据进行了比较和讨论．
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| 关 键 词： | 双尺度随机粗糙面 白帽泡沫 辐射传输 双站散射 热发射率 |
| 收稿时间： | 1994-05-16 |
BISTATIC SCATTERING AND THERMAL EMISSION FROM RANDOMLY ROUGH SEA SURFACE |
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| HUANG XING-ZHONG, JIN YA-QIU.BISTATIC SCATTERING AND THERMAL EMISSION FROM RANDOMLY ROUGH SEA SURFACE[J].Chinese Journal of Geophysics,1995,38(2):163-173. |
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| Authors: | HUANG XING-ZHONG JIN YA-QIU |
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| Affiliation: | 1. Department of Electronic Engineering, Fudan University , Shanghai 200433;
2. Department of Electronic Science, China East Normal University, Shanghai 200062 |
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| Abstract: | Employing scattering theory of two-scale randomly rough surface and vector radiative transfer theory,a model of a layer of discrete scatterers with underlying two-scale rough surface is developed and is applied to remote sensing of sea surface with foam scatterers.By using Person's semi-empirical sea spectrum and modified Cox and Munk's probability density function of surface slope, the bistatic scattering coefficients and thermal emissivity from randomly rough sea surface with foam scatterers driven by strong wind are obtained.The functional dependence on frequency, polarization, observation angle, and some other surface parameters such as wind speed and direction are discussed.Numerical results are well compared with experimental data of sea remote sensing. |
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| Keywords: | Two-scale randomly rough surface Foam scatterers Radiative transfer Bistatic scattering Thermal emissivity |
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