An approach to determining shelf seawater composition by inversion of in situ inherent optical property measurements

Brown, IC. and Cunningham, Alexander and McKee, D. (2007) An approach to determining shelf seawater composition by inversion of in situ inherent optical property measurements. In: Oceans 2007 Europe International Conference, 2007-06-18 - 2007-06-21. (https://doi.org/10.1109/OCEANSE.2007.4302313)

Abstract

Measurement of inherent optical properties (IOPs) of seawater using an AC-9 dual-beam spectrophotometer has become routine on many oceanographic cruises. AC-9 data (a(AC9)(lambda), b(AC9)(lambda) and c(AC9)(lambda)) are frequently used in radiance transfer calculations of water leaving radiances, for use in remote sensing applications. There are at present, however, no generally accepted protocols for the inversion of in situ IOP spectra to obtain estimates of water composition. A model is presented to partition in situ IOP spectra between particulate and dissolved shelf seawater constituents using constituent-specific optical cross-sections. These partitioned IOP spectra are subsequently inverted, yielding estimates of optically significant constituent concentrations. The inversion of IOPs measured in situ enables the calculation of spatial and temporal variability in shelf seawater composition at greatly increased resolution when compared with traditional sample collection and analysis. On moorings, towed bodies and ferry-box systems, this data is greatly needed for validating remote sensing products and to provide information on shelf sea processes.

ORCID iDs

McKee, D. ORCID: https://orcid.org/0000-0001-8023-5923

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  Item type:	Conference or Workshop Item(Paper)
  ID code:	26623
  Dates:	Date Event 18 June 2007 Published
  Subjects:	Science > Physics
  Department:	Faculty of Science > Physics
  Depositing user:	Users 1261 not found.
  Date deposited:	09 Aug 2010 10:52
  Last modified:	11 Nov 2024 16:26
  Related URLs:	Event
  URI:	https://strathprints.strath.ac.uk/id/eprint/26623