Knestrick G L, Curcio J A
The Naval Research Laboratory, Washington, DC 20390, USA.
Appl Opt. 1967 Dec 1;6(12):2105-9. doi: 10.1364/AO.6.002105.
Typical spectral radiance data are presented for a rectangular portion of the horizon sky under various weather conditions and at different solar positions. Representative curves were selected from a total of seventy-nine spectral radiance measurements which covered meteorological ranges (at 665 mmu) from 10 km to 106 km and solar altitudes from -6 degrees to 74 degrees . The north horizon at noon with a 30-km or greater meteorological range typically produced a peak spectral radiance of 5 microW cm(-2)sr(-1)mmu(-1). The maximum spectral radiance value obtained in the study was 38 microW cm(-2)sr(-1)mmu (-1) for the south horizon in winter. The reciprocal dispersion varied from 1.8 mmu/mm at 400 mmu to approximately 8 mmu/mm at 1000 mmu. A mixture of fog and haze produced a spectral radiance curve with two maxima.
给出了典型光谱辐射率数据，这些数据是关于不同天气条件下和不同太阳位置时地平线天空的一个矩形区域的。代表性曲线是从总共七十九次光谱辐射率测量中选取的，这些测量涵盖了从10千米到106千米的气象范围（在665纳米处）以及从-6度到74度的太阳高度。中午时气象范围为30千米或更大的北地平线通常产生的峰值光谱辐射率为5微瓦·厘米⁻²·球面度⁻¹·纳米⁻¹。该研究中获得的最大光谱辐射率值是冬季南地平线的38微瓦·厘米⁻²·球面度⁻¹·纳米⁻¹。倒数色散从400纳米处的1.8纳米/纳米变化到1000纳米处的约8纳米/纳米。雾和霾的混合产生了一条有两个最大值的光谱辐射率曲线。
