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Updated: Jun 6, 2026

Measuring the Structure, Composition, and Change of Underwater Environments with Large-area Imaging
Published on: April 18, 2025
Point-spread function of the ocean color bands of the Moderate Resolution Imaging Spectroradiometer on Aqua
Gerhard Meister1, Charles R McClain
1NASA Goddard Space Flight Center, Code 614.2, Greenbelt, Maryland 20771, USA. Gerhard.Meister@nasa.gov
Abstract:
The Moderate Resolution Imaging Spectroradiometer (MODIS) on the Aqua platform has nine spectral bands with center wavelengths from 412 to 870 nm that are used to produce the standard ocean color data products. Ocean scenes usually contain high contrast due to the presence of bright clouds over dark water. About half of the MODIS Aqua ocean pixels are flagged as spatial stray light contaminated. The MODIS has been characterized for stray light effects prelaunch. In this paper, we derive point-spread functions for the MODIS Aqua ocean bands based on prelaunch line-spread function measurements. The stray light contamination of ocean scenes is evaluated based on artificial test scenes and on-orbit data.
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