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Influence of Raman scattering on ocean color inversion models

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https://ir.library.oregonstate.edu/concern/articles/n009w292h

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  • Raman scattering can be a significant contributor to the emergent radiance spectrum from the surface ocean. Here, we present an analytical approach to directly estimate the Raman contribution to remote sensing reflectance, and evaluate its effects on optical properties estimated from two common semi analytical inversion models. For application of the method to ocean color remote sensing, spectral irradiance products in the ultraviolet from the OMI instrument are merged with MODerate-resolution Imaging Spectroradiometer (MODIS) data in the visible. The resulting global fields of Raman-corrected optical properties show significant differences from standard retrievals, particularly for the particulate backscattering coefficient, b(bp), where average errors in clear ocean waters are similar to 50%. Given the interest in transforming b(bp) into biogeochemical quantities, Raman scattering must be accounted for in semi analytical inversion schemes. (C) 2013 Optical Society of America
  • Keywords: Natural waters, Diffuse attenuation coefficient, Light fields, Irradiance, Inherent optical properties, Water leaving radiance, Pure water, Reflectance, Inelastic scattering, In-situ measurements
  • This paper was published in Applied Optics and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://www.opticsinfobase.org/ao/search2.cfm?reissue=J&journalList=9&fullrecord=influence+of+raman&basicsearch=Go. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.
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  • Westberry, T., Boss, E., & Lee, Z. (2013). Influence of raman scattering on ocean color inversion models. Applied Optics, 52(22), 5552-5561. doi:10.1364/AO.52.005552
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  • 52
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  • 22
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  • Funding for this work was provided by NASA grant NNX12AJ13G to EB and TKW
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