Specific phytoplankton absorption variability and implication for chlorophyll a retrieval in Belgian waters (Southern North Sea)
Astoreca, R.; Rousseau, V.; Lancelot, C. (2006). Specific phytoplankton absorption variability and implication for chlorophyll a retrieval in Belgian waters (Southern North Sea), in: Danesy, D. (Ed.) Proceedings of the Second Working Meeting on MERIS and AATSR Calibration and Geophysical Validation (MAVT-2006). 20-24 March 2006, ESRIN, Frascati (Italy). ESA Special Publications, 615: pp. 1-5
In: Danesy, D. (Ed.) (2006). Proceedings of the Second Working Meeting on MERIS and AATSR Calibration and Geophysical Validation (MAVT-2006). 20-24 March 2006, ESRIN, Frascati (Italy). ESA Special Publications, 615. ESA Publications Office: [s.l.]. ISBN 92-9092-926-X. , meer
In: ESA Special Publications. ESA Publications Office. ISSN 0379-6566; e-ISSN 1609-0438, meer
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| Beschikbaar in | Auteurs |
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Documenttype: Congresbijdrage
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| Trefwoorden |
Aquatic communities > Plankton > Phytoplankton
Organic compounds > Carbohydrates > Glycosides > Pigments > Photosynthetic pigments > Chlorophylls
Remote sensing
Spectra > Absorption spectra
ANE, België, Belgisch Continentaal Plat (BCP) [Marine Regions]; ANE, België, Belgische kust [Marine Regions]
Marien/Kust |
| Project | Top | Auteurs |
- BELCOLOUR - Optical remote sensing of coastal waters, meer
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| Abstract |
Chlorophyll a retrieval from satellite is based on algorithms that convert the phytoplankton absorption into chlorophyll a by means of the specific- phytoplankton absorption. This factor has been found to be highly variable, spatially and seasonally. The variability of the chlorophyll a-specific phytoplankton absorption in Belgian waters (Southern North Sea) was investigated to determine how it is affecting the chlorophyll a retrieval from satellite information. The Southern Bight of the North Sea is a very dynamic area influenced by river discharges and characterised by highly variable chlorophyll, suspended matter and coloured dissolved organic matter absorption. The impact of using a mean value of specific-phytoplankton absorption as usually done instead of the real one in chlorophyll a retrieval was estimated and found to be significant (underestimation up to 70% at 665 nm). |
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