Parameterization of light absorption by components of seawater in optically complex coastal waters of the Crimea Peninsula (Black Sea).
The absorption of sunlight by oceanic constituents significantly contributes to the spectral distribution of the water-leaving radiance. Here it is shown that current parameterizations of absorption coefficients do not apply to the optically complex waters of the Crimea Peninsula. Based on in situ measurements, parameterizations of phytoplankton, nonalgal, and total particulate absorption coefficients are proposed. Their performance is evaluated using a log-log regression combined with a low-pass filter and the nonlinear least-square method. Statistical significance of the estimated parameters is verified using the bootstrap method. The parameterizations are relevant for chlorophyll a concentrations ranging from 0.45 up to 2 mg/m(3).
Dmitriev
Egor V
EV
Laboratoire de Physico-Chimie de l'Atmosphère, UMR CNRS 8101, Maison de la Recherche en Environnement Industrielde Dunkerque, Université du Littoral Côte d'Opale, Dunkerque, France. yegor@mail.ru
Khomenko
Georges
G
Chami
Malik
M
Sokolov
Anton A
AA
Churilova
Tatyana Y
TY
Korotaev
Gennady K
GK
D000042:Absorption; D002734:Chlorophyll / Q000378:metabolism / Q000528:radiation effects; D000077194:Chlorophyll A; D016018:Least-Squares Analysis; D008027:Light; D017711:Nonlinear Dynamics; D009994:Osmolar Concentration; D010839:Phytoplankton / Q000378:metabolism / Q000528:radiation effects; D012623:Seawater; D014455:Ukraine
D002734:Chlorophyll; D000077194:Chlorophyll A