Impact of spectral band differences in matchups analysis of satellite and in situ ocean color radiometric data.
Giuseppe Zibordi, Marko Talone, Kenneth Voss, B. Carol Johnson
Spectral resolution for in situ remote sensing reflectance (RRS) measurements supporting satellite ocean color validation and system vicarious calibration (SVC) are investigated to detail minimum requirements. The study, which is conducted using hyperspectral RRS from different water types, focuses on the visible spectral bands of the Ocean Land Color Imager (OLCI) and of the Plankton, Aerosol, Cloud, ocean Ecosystem (PACE) satellite sensors. Results indicate the need for a spectral resolution of 1 nm for SVC of PACE in oligotrophic waters. Spectral resolution requirements decrease to 3 nm for SVC of OLCI. Validation activities, which exhibit lower requirements with respect to SVC, are satisfied in oligotrophic waters by a spectral resolution of 3 nm for both OLCI and PACE. Validation activities in optically complex waters appear otherwise satisfied by spectral resolutions of 6 nm for PACE and of 9 nm for OLCI.
, Talone, M.
, Voss, K.
and Johnson, B.
Impact of spectral band differences in matchups analysis of satellite and in situ ocean color radiometric data., Optics Express, [online], https://doi.org/10.1364/OE.25.00A798
(Accessed September 30, 2023)