Reflectance modelling in case II waters: Contamination of the elastic signal by CDOM fluorescence
A bio-optical model is presented which offers a framework for the application of satellite-derived ocean colour in case II waters. Emphasis is placed on describing the maximum variability of the non-phytoplankton pigment contributions. The model is developed following three steps: the parameterization of distribution functions describing the optically active components, the development of a forward model for simulating reflectance and an inversion procedure based on multivariate statistical techniques. The present work mainly focuses on describing the forward model which has been formulated for a specific region namely the Southern Baltic sea. After implementation of the parameters derived from an in situ database, the model has been shown to describe adequately the subsurface irradiance reflectance in this region. Further considerations were made on the contribution of yellow substance fluorescence which is of major importance in the Baltic and other coastal regions. It is shown for the Southern Baltic that reflectance due to yellow substance fluorescence systematically contributes as much as 50% of the total reflectance due to elastic processes. However initial computations of eigenvectors on the reflectance dataset show no evidence of a significant effect due to the fluorescence by yellow substance on the information content of the computed vectors.
Bibliographic Reference: Paper presented: Workshop on MOS-IRS and Ocean Colour, Berlin (DE)
Availability: Available from (1) as Paper EN 41114 ORA
Record Number: 199810210 / Last updated on: 1998-02-12
Original language: en
Available languages: en