SENSITIVITY ANALYSIS OF SEMI-ANALYTICAL MODELS OF DIFFUSE ATTENTUATION OF DOWNWELLING IRRADIANCE IN LAKE BALATON

摘要

A quantification of the available light in the water column is key to evaluate the water quality in lakes as it is one of the major factors determining primary production. The light environment in water is generally described in terms of the vertical attenuation coefficient (Kd) and euphotic depth (Ze) where the light is reduced to 1% of its (just below) surface value. Reliable models to estimate KdPAR (and Ze) from remote sensing measurements have been successfully demonstrated in marine applications using typical ocean colour missions such as MERIS-envisat (300m) and MODIS-AQUA (250-1000m). In this study, we present the adaptation of a semi-analytical model for Kd and Ze, developed for MERIS/MODIS, to the new and upcoming sensors bands for inland water cases.