Simultaneous retrieval of aerosols and in-water constituents in turbid coastal waters using multi-and hyperspectral data

H. Eide, Wei Li, Knut Stamnes, Robert Spurr, Jakob J. Stamnes

Research output: Contribution to journalConference articlepeer-review

3 Scopus citations

Abstract

A new method for simultaneous retrieval of aerosol properties and marine constituents in turbid waters is described. This method is an extension to turbid waters of an approach developed previously for simultaneous retrieval of aerosol properties and chlorophyll concentrations in clear waters. This extension is accomplished by employing near-infrared (NIR) channels not available on the SeaWiFS and MERIS instruments to help retrieve aerosol parameters over turbid waters. Optimal estimation theory is used to retrieve in-water parameters from multi- and hyperspectral information. Both forward and inverse modeling strategies will be discussed, as well as the uniqueness of the solutions, the information content available in multi- and hyperspectral data, and the error analysis approach. Our results indicate that it is important to use forward models that accurately treat the radiative transfer in the coupled (combined) atmosphere-ocean system, and to carefully select the most suitable bio-optical models for the in-water inherent optical properties (IOPs). Synthetic data, as well as multi- and hyperspectral images of data obtained over clear as well as turbid waters, are used to test the validity of the new retrieval approach.

Original languageEnglish
Article number05
Pages (from-to)44-55
Number of pages12
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume5569
DOIs
StatePublished - 2004
EventRemote Sensing of the Ocean and Sea Ice 2004 - Maspalomas, Spain
Duration: 13 Sep 200414 Sep 2004

Keywords

  • Aerosol retrievals
  • Atmospheric correction
  • Coastal marine parameters
  • Hyperspectral
  • Remote sensing

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