Inherent Optical Properties of the Irish Sea Determined from Underwater Irradiance Measurements

Inherent Optical Properties of the Irish Sea Determined from Underwater Irradiance Measurements

The results of four-channel irradiance meter measurements at 41 stations in the Irish Sea are presented. Diffuse attenuation ( K) is least and reflection ( R) is greatest in the green channel (550 nm). A very good relationship exists between the attenuation coefficient at this wavelength and the est...

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Veröffentlicht in:Estuarine, coastal and shelf science coastal and shelf science, 1996, Vol.43 (4), p.433-447
Hauptverfasser: Bowers, D.G., Mitchelson-Jacob, E.G.
Format: Artikel
Sprache:eng
Schlagworte:
absorption
Earth sciences
Earth, ocean, space
Exact sciences and technology
Geochemistry
Irish Sea
light attenuation
Marine
Marine and continental quaternary
Mineralogy
optical measurements
scattering
Silicates
Surficial geology
Water geochemistry
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Zusammenfassung:The results of four-channel irradiance meter measurements at 41 stations in the Irish Sea are presented. Diffuse attenuation ( K) is least and reflection ( R) is greatest in the green channel (550 nm). A very good relationship exists between the attenuation coefficient at this wavelength and the estimated photosynthetically active radiation (PAR) attenuation using all four channels: K(PAR)=0·01+1·11 K(550) Absorption and scattering coefficients ( aand b, respectively) have been derived from the observations using the results of a Monte Carlo model. Scattering coefficients are generally (but not invariably) larger than absorption coefficients in these waters (0·5 < b/ a
ISSN:0272-7714
1096-0015
DOI:10.1006/ecss.1996.0080