Journal
OPTICS EXPRESS
Volume 29, Issue 15, Pages 24010-24024Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.426246
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Funding
- National Aeronautics and Space Administration [NNH11ZDA001N, NNX14AI30A, NNX17AK89G]
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Modeling hyperspectral water-leaving radiance in coastal ecosystems using in situ inherent optical properties can reduce uncertainty and serve as an alternative or complementary method for validating satellite-derived hyperspectral data.
Next-generation satellite sensors such as the Ocean Color Instrument (OCI) aboard the NASA Plankton, Aerosols, Cloud and ocean Ecosystem (PACE) satellite and the proposed Surface Biology and Geology (SBG) sensor will provide hyperspectral measurements of water-leaving radiances. However, acquiring sufficiently accurate in situ validation data in coastal ecosystems remains challenging. Here we modeled hyperspectral normalized water-leaving radiance ([L-W (lambda)](N)) in a dynamic coastal ecosystem using in situ inherent optical properties (IOPs) as inputs to the Hydrolight radiative transfer model. By reducing uncertainty of modeled hyperspectral [L-W(lambda)](N) (%RMSE <= 21%) relative to [L-W(lambda)](N) derived from in situ radiometric measurements (%RMSE <= 33%), we introduce modeling as an alternative or complementary method to in-water radiometric profilers for validating satellite-derived hyperspectral data from coastal ecosystems. (C) 2021 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
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