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Bidirectional reflectance function for oceanic waters with varying chlorophyllconcentrations: Measurements versus predictions
Author(s) -
Voss Kenneth J.,
Morel André
Publication year - 2005
Publication title -
limnology and oceanography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.7
H-Index - 197
eISSN - 1939-5590
pISSN - 0024-3590
DOI - 10.4319/lo.2005.50.2.0698
Subject(s) - radiance , upwelling , nadir , chlorophyll a , environmental science , remote sensing , chlorophyll , zenith , range (aeronautics) , ocean color , solar zenith angle , reflectivity , atmospheric sciences , geology , oceanography , physics , chemistry , optics , materials science , satellite , biochemistry , organic chemistry , astronomy , composite material
The bidirectional reflectance of the ocean is an important parameter in ocean color remote sensing. Model predictions for case‐1 waters were compared with measurements over a large range of chlorophyll concentrations (0.1–10 mg m −3 Chl, where Chl represents the sum of chlorophyll a and phaeophytin a ), but with restricted solar zenith angles. We used the measured chlorophyll concentration and a model to predict the shape of the upwelling spectral radiance distribution. We found that the model predicted the radiance in the view direction, normalized by the nadir radiance, to within 7%. We also found that Q(E u /L u ) was predicted within 7%.