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Registro de acceso abierto Seasonal-to-interannual variability of chlorophyll-a bloom timing associated with physical forcing in the Gulf of Cádiz

Autor :Navarro, Gabriel
Caballero, Isabel
Prieto, I.
Vázquez, A.
Flecha, Susana
Huertas, I. Emma
Ruiz, Javier
Palabras clave :Gulf of Cadiz, Timing of bloom, Physical-biological forcing
Fecha de publicación :15-oct-2012
Editor:Committee on Space Research (COSPAR)
Citación :Advances in Space Research 50(8): 1164-1172 (2012)
Resumen :Seasonal-to-interannual variability of the winter-spring bloom in the Gulf of Cádiz, eastern North Atlantic, has been investigated using chlorophyll-a remote sensing (CHL). These data have been obtained from the GlobColour project; the temporal coverage extends from September 1997 to December 2010. In this study we develop a generic quantitative approach for describing the temporal variability in the shape of the winter-spring bloom within a region. Variability in both the timing and magnitude of the bloom in the basin has been evaluated as a function of physical properties in the water column such as Mixed Layer Depth (MLD, GODAS model), sea surface temperature (SST, from AVHRR radiometers), photosynthetically-active radiation (PAR, from ocean color data) and euphotic depth (Zeu, from ocean color data). The analysis indicated that the timing, size and duration of the phytoplankton bloom in this area are largely controlled by both meteorological and oceanographic conditions at different scales; this means that it is likely to vary widely from one year to another.
Versión del editor:http://dx.doi.org/10.1016/j.asr.2011.11.034
URI :http://hdl.handle.net/10261/55630
ISSN:0273-1177
DOI:10.1016/j.asr.2011.11.034
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