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A new ε function for atmospheric correction algorithm
Author(s) -
Su Wenying
Publication year - 2000
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/1999gl007005
Subject(s) - seawifs , atmospheric correction , function (biology) , environmental science , aerosol , remote sensing , algorithm , ocean color , meteorology , computer science , geology , physics , optics , satellite , reflectivity , chemistry , organic chemistry , phytoplankton , astronomy , evolutionary biology , nutrient , biology
In this paper the atmospheric correction algorithms for two ocean color sensors, CZCS and SeaWiFS, were analyzed. Based upon the analysis, the 6S model was used to study the relationship between ρ as ( λ ) and ρ a ( λ )+ ρ ra ( λ ) and to develop a new ε function. The new ε 3 ( λ , 865) function considered the aerosol scattering effect and the interaction between aerosols and atmospheric molecules as a whole. Using the ε 3 ( λ 865) instead of the original SeaWiFS defined ε (λ, 865) could avoid the converting between ρ as ( λ ) and ρ a ( λ )+ ρ ra ( λ ) and help to simplify the atmospheric correction algorithm to a great extent.