. Collected reprints / Atlantic Oceanographic and Meteorological Laboratories [and] Pacific Oceanographic Laboratories. Oceanography LANDSAT-1 AND OPTICAL OCEANOGRAPHY 103 resulting aw(k) values will represent an upper limit to the spectral absorption coefficient of clear natural waters. Be- cause of this the Kx(z,-) data of Tyler and Smith have been smoothed and used for aw (X) in this paper. Since ap is taken to be zero, only ay(\) remains to be considered. This is taken from Jerlov (1968) and is para- meterized by ay(\) = fl ;530-\); *y where X is in nm. Reasonably h
. Collected reprints / Atlantic Oceanographic and Meteorological Laboratories [and] Pacific Oceanographic Laboratories. Oceanography LANDSAT-1 AND OPTICAL OCEANOGRAPHY 103 resulting aw(k) values will represent an upper limit to the spectral absorption coefficient of clear natural waters. Be- cause of this the Kx(z,-) data of Tyler and Smith have been smoothed and used for aw (X) in this paper. Since ap is taken to be zero, only ay(\) remains to be considered. This is taken from Jerlov (1968) and is para- meterized by ay(\) = fl ;530-\); *y where X is in nm. Reasonably high concentrations of yellow substance in the open ocean have ay = 5 X 10~3 m_1 (, near Galapagos Islands), however, ay can be much larger in coastal regions. The reader should note that the above model differs significantly from those given in an earlier report (Maul and 10|_l I I I | I I I I II I I I | I I I I II I II | I I I I I I I I I. ERTS-i Ui O z < O Ui Ui V) 5 â » I I I I I I I I I I I I I I I I 400 500 600 700 WAVELENGTH (n m) FIG. 2. Log-lin plot of computed diffuse reflectance spectrum for the fraction of back scattered light = , the yellow substance absorption coefficient = 0, and for various values of the ratio of the particle scattering coefficient to the water scattering coefficient. Note that the spectrum changes shape in a wavelength dependent fashion; a similar result occurs if sea state changes are included in upwelling radiance spectrum (see Fig. 8). 497. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Atlantic Oceanographic and Meteorological Laboratories; Pacific Oceanographic Laboratories; United States. Environmental Science Services Administration. Research Laboratories; Environmental Research Laboratories (U. S. ). Washington, D. C. : U. S. Dept. of Commerce,
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