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Stray Light Correction of the Marine Optical System

Published

Author(s)

M Feinholz, S Flora, M Yarbrough, Keith R. Lykke, Steven W. Brown, Bettye C. Johnson, Dennis Clark

Abstract

The Marine Optical System is a spectrograph-based sensor used in the Marine Optical Buoy for the vicarious calibration of ocean color satellite sensors. It is also deployed from ships in instruments used to develop bio-optical algorithms that relate the optical properties of the ocean to its biological content. In this work, an algorithm is developed to correct the response of the Marine Optical System for scattered, or improperly imaged, light in the system. The algorithm, based on the measured response of the system to a series of monochromatic excitation sources, reduces the effects of scattered light on the measured source by one to two orders of magnitude. Implications for the vicarious calibration of satellite ocean color sensors and the development of bio-optical algorithms are described. The algorithm is a one-dimensional point spread correction algorithm, generally applicable to non-imaging sensors, but can in principle be extended to higher dimensions for imaging systems.
Citation
Journal of Atmospheric and Oceanic Technology

Keywords

calibration, hyperspectral imaging, ocean color, point-spread response, radiometry, spectrograph, stray light
Created January 1, 2009, Updated February 17, 2017