Hoge F E, Swift R, Yungel J
Appl Opt. 1995 Jun 20;34(18):3468-76. doi: 10.1364/AO.34.003468.
It is shown that airborne active-passive (laser-solar) ocean color data can be used to develop and validate oceanic radiance models. The two principal inputs to the oceanic radiance model, chlorophyll pigment and incident solar irradiance, are obtained from a nadir-viewing laser-induced fluorescence spectrometer and a zenith-viewing radiometer, respectively. The computed water-leaving radiances are validated by comparison with the calibrated output of a separate nadir-viewing radiometer subsystem. In the North Atlantic Ocean, the calculated and the observed airborne radiances are found to compare very favorably for the 443-, 520-, and 550-nm wavelengths over an ∼ 170-km flight track east of St. John's, Newfoundland. The results further suggest that the semianalytical radiance model of ocean color, the airborne active (laser) fluorescence spectrometer, and the passive (solar) radiometric instrumentation are all remarkably precise.
结果表明，机载主动-被动（激光-太阳）海洋颜色数据可用于开发和验证海洋辐射模型。海洋辐射模型的两个主要输入参数，叶绿素色素和入射太阳辐照度，分别由一台天底观测激光诱导荧光光谱仪和一台天顶观测辐射计获取。通过与单独的天底观测辐射计子系统的校准输出进行比较，对计算得到的离水辐射率进行验证。在北大西洋，在纽芬兰圣约翰斯以东约170公里的飞行轨迹上，计算得到的和观测到的机载辐射率在443、520和550纳米波长处的比较结果非常理想。结果进一步表明，海洋颜色的半分析辐射模型、机载主动（激光）荧光光谱仪和被动（太阳）辐射测量仪器都非常精确。
