Effect Of Instrument Tilts On In-Water Radiometric Profile Measurements And Data Analysis

Using the coupled ocean and atmosphere radiative transfer code (COART), the downward radiance distributions above the sea surface and at 1 m depth in the water are calculated. Combined with the discrete angle numerical model, the investigation of effect of instrument tilts on E-d, E-s and L-u is provided. It is found that the average of the time series E-s data will be to eliminate the effect of the tilt of surface incident irradiance instrument caused by the rocked boat. And different high tilt thresholds should be set respectively for E-d and L-u to flag invalid data records.