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SeaWIFS vicarious calibration exercises have been carried out by applying a simple atmospheric model to images taken over the North Adriatic Sea in the period January-July 1998. The images were characterized by different atmospheric and marine conditions, and different sun-sensor geometry. In situ measurements collected contemporaneously with SeaWIFS over-flight at a validation site in the study area, have been used as truth data for satellite data inversion. Derived SeaWIFS vicarious correction factors for pre-launch calibration coefficients, show values of about +3% at 412 nm and between -3% and -5% at 443, 490, 510, 555 and 670 nm. The application of the derived correction factors in the processing of the sample SeaWIFS images, has shown agreement within 20% between insitu and satellite derived normalized water leaving radiance's at 490 and 510 nm

Additional information

Authors: STURM B, SAI, JRC-Ispra (IT);ZIBORDI G, SAI, JRC-Ispra (IT)
Bibliographic Reference: Paper presented: Ocean Optics XIV, Kailua Kona (US), 10-13th November, 1998
Availability: Available from Public Relations and Publications Unit, JRC-Ispra (IT)
Record Number: 199911105 / Last updated on: 1999-08-06
Original language: en
Available languages: en