In Situ Autonomous optical Radiometry Measurements for Satellite Ocean Color Validation in the Western Black Sea

The accuracy of primary satellite ocean color data products from the Moderate Resolution Imaging Spectroradiometer (MODIS-A) and the Visible/Infrared Imager/Radiometer Suite (VIIRS), is investigated in the Western Black Sea using in situ measurements from the Gloria site included in the Ocean Color component of the Aerosol Robotic Network (AERONET-OC). The analysis is also extended to an additional well-established AERONET-OC site in the northern Adriatic Sea characterized by optically complex coastal waters exhibiting similarities with those observed at the Gloria site. Results from the comparison of normalized-water leaving radiance Lwn indicate biases of a few percent between satellite derived and in situ data at the center-wavelengths relevant for the determination of chlorophyll-a concentration (443-547 nm, or equivalent). The differences are significantly more pronounced at the blue (i.e., at 412 nm) and red (i.e., 667 nm, or equivalent) center-wavelengths.

ZIBORDI Giuseppe;  MELIN Frederic;  BERTHON Jean-Francois;  TALONE Marco; 

2015-04-24

COPERNICUS GESELLSCHAFT MBH

JRC92373

1812-0784,   

www.ocean-sci.net/11/275/2015/,    https://publications.jrc.ec.europa.eu/repository/handle/JRC92373,   

10.5194/os-11-275-2015,