光学学报, 2020, 40 (6): 0601001, 网络出版: 2020-03-06
海洋水色卫星紫外波段的偏振特性分析 
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Polarization Characteristics of Ultraviolet Bands Observed by Ocean Color Satellites
图 & 表
图 3. 计算VIIRS 410 nm波段瑞利散射的相对误差。(a)太阳天顶角为0°;(b)太阳天顶角为30°;(c)太阳天顶角为60°
Fig. 3. Relative errors of Rayleigh scattering calculations for VIIRS 410 nm band with different solar zenith angles. (a) 0°; (b) 30°; (c) 60°
图 4. OSOAA与VIIRS瑞利查找表计算410 nm波段瑞利散射辐射Stokes矢量LQ分量比较。(a)太阳天顶角为0°;(b)太阳天顶角为30°;(c)太阳天顶角为60°
Fig. 4. Comparisons of LQ component of Stokes vector between the Rayleigh look-up-table for VIIRS 410 nm band with OSOAA calculations with different solar zenith angles. (a) 0°; (b) 30°; (c) 60°
图 5. OSOAA与VIIRS瑞利查找表计算410 nm波段瑞利散射辐射Stokes矢量LU分量比较。(a)太阳天顶角为0°;(b)太阳天顶角为30°;(c)太阳天顶角为60°
Fig. 5. Comparisons of LU component of Stokes vector between the Rayleigh look-up-table for VIIRS 410 nm band with OSOAA calculations with different solar zenith angles. (a) 0°; (b) 30°; (c) 60°
图 6. 仅考虑大气分子散射时不同几何条件下的卫星入瞳处光的偏振度分布情况。(a)(c)(e) 355 nm波段;(b)(d)(f) 385 nm波段
Fig. 6. Geometry dependent distribution of satellite sensed DOP of atmospheric molecular scattering radiation. (a)(c)(e) Simulated light wavelength is 355 nm; (b)(d)(f) simulated light wavelength is 385 nm* denotes the sun, polar radius denotes viewing zenith angle θ, and polar angle denotes relative angle Δφ
图 7. 卫星入瞳处不同波长的大气分子散射光。(a)总反射率和偏振度;(b)总辐亮度和线偏振辐亮度(太阳天顶角θ0=30°,观测天顶角θ=30°,相对方位角Δφ=135°)
Fig. 7. Wavelength dependent of satellite sensed atmospheric molecular scattering radiation. (a) Total reflectance and DOP; (b) total radiance and LPR (the solar zenith angle θ0=30°, viewing zenith angle θ=30°, relative azimuth angle Δφ=135°)
图 8. 卫星入瞳处不同波长的散射光参数随气溶胶相对湿度的变化曲线。(a)总反射率;(b)偏振度(M30、 M70和M95分别代表相对湿度为30%、70%和95%的海洋性气溶胶,模拟时气溶胶光学厚度τ550=0.2,方位条件同图7 )
Fig. 8. Wavelength dependent of satellite sensed scattering radiation varied by aerosol relative humidity. (a) Total reflectance; (b) DOP (M30, M70 and M95 respectively denote the maritime aerosol with a relative humidity of 30%, 70% and 95%,the aerosol optical depth τ550=0.2 and the geometry conditions are the same as in Fig. 7 )
图 9. 卫星入瞳处不同波长的散射光随气溶胶光学厚度的变化曲线。(a)总反射率;(b)偏振度 (气溶胶的相对湿度为70%,方位条件同图7 )
Fig. 9. Wavelength dependent of satellite sensed scattering radiation varied by aerosol optical depth. (a) Total reflectance; (b) DOP (the aerosol relative humidity is 70%, and the geometry conditions are the same as in Fig. 7 )
图 10. 水-气界面层对卫星入瞳处不同波长的散射光的影响。(a)反射率;(b)偏振度(方位条件同图7 )
Fig. 10. Influence of air-sea interface on the satellite sensed scattering radiation at different wavelengths. (a) Total reflectance; (b) DOP (the geometry conditions are the same as in Fig. 7 )
图 11. 典型水体对卫星入瞳处不同波长的散射光的影响。(a)总反射率;(b)偏振度(各个几何角度同图5 )
Fig. 11. Influence of classical water on the satellite sensed scattering radiation at different wavelengths. (a) Total reflectance; (b) DOP(the geometry conditions are the same as in Fig. 5 )
图 12. 偏振效应对模型模拟仿真的影响。(a)选取的VIIRS和OMPS影像覆盖区域;(b)选取的S区域在VIIRS影像上的位置;(c)对S区域的各个波段总反射率的模拟仿真对比
Fig. 12. Influence of polarization feature on the model simulation. (a) Covered area of selected VIIRS and OMPS image; (b) selected S region located in the VIIRS image; (c) comparison of simulated total reflectance of S region at different wavelengths
张艺蔚, 陶邦一, 毛志华, 黄海清, 朱乾坤, 龚芳. 海洋水色卫星紫外波段的偏振特性分析[J]. 光学学报, 2020, 40(6): 0601001. Yiwei Zhang, Bangyi Tao, Zhihua Mao, Haiqing Huang, Qiankun Zhu, Fang Gong. Polarization Characteristics of Ultraviolet Bands Observed by Ocean Color Satellites[J]. Acta Optica Sinica, 2020, 40(6): 0601001.
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