Estimating errors in satellite retrievals of bio-optical properties due to incorrect aerosol model selection

Sean C. McCarthy; Richard W. Gould Jr.; James Richman; Courtney Kearney; Adam Lawson

doi:10.1117/12.897546

7 October 2011 Estimating errors in satellite retrievals of bio-optical properties due to incorrect aerosol model selection

Sean C. McCarthy, Richard W. Gould Jr., James Richman, Courtney Kearney, Adam Lawson

Author Affiliations +

Proceedings Volume 8175, Remote Sensing of the Ocean, Sea Ice, Coastal Waters, and Large Water Regions 2011; 817507 (2011) https://doi.org/10.1117/12.897546
Event: SPIE Remote Sensing, 2011, Prague, Czech Republic

Abstract

We examine the impact of incorrect atmospheric correction, specifically incorrect aerosol model selection, on retrieval of bio-optical properties from satellite ocean color imagery. Uncertainties in retrievals of bio-optical properties (such as chlorophyll, absorption and backscattering coefficients) from satellite ocean color imagery are related to a variety of factors, including errors associated with sensor calibration, atmospheric correction, and the bio-optical inversion algorithms. In many cases, selection of an inappropriate or erroneous aerosol model during atmospheric correction can dominate the errors in the satellite estimation of the normalized water-leaving radiances (_nL_w), especially over turbid, coastal waters. These errors affect the downstream bio-optical properties. Here, we focus on only the impact of incorrect aerosol model selection on the _nL_w radiance estimates, through comparisons between Moderate- Resolution Imaging Spectroradiometer (MODIS) satellite data and in situ measurements from AERONET-OC (Aerosol Robotic NETwork - Ocean Color) sampling platforms.

Citation Download Citation

Sean C. McCarthy, Richard W. Gould Jr., James Richman, Courtney Kearney, and Adam Lawson "Estimating errors in satellite retrievals of bio-optical properties due to incorrect aerosol model selection", Proc. SPIE 8175, Remote Sensing of the Ocean, Sea Ice, Coastal Waters, and Large Water Regions 2011, 817507 (7 October 2011); https://doi.org/10.1117/12.897546

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