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Título

Modeling the seasonal and interannual variability (2001-2010) of chlorophyll-a in the Iberian margin

Autor Reboreda, Rosa; Cordeiro, Nuno G. F.; Nolasco, Rita; Castro, Carmen G. ; Álvarez-Salgado, Xosé Antón ; Queiroga, Henrique; Bubert, Jesus
Palabras clave Chlorophyll
Upwelling
Spring Bloom
Modeling
North East Atlantic
Iberian margin
Fecha de publicación 2014
EditorElsevier
Citación Journal of Sea Research 93: 133–149 (2014)
ResumenA modeling study of the seasonal and interannual variability of chlorophyll-a has been carried out for the period 2001–2010 along the Iberian shelf and adjacent ocean. A high resolution regional configuration of the three-dimensional Regional Ocean Modeling System (ROMS) has been used, coupled to a N2PZD2-type biogeochemical model. Chlorophyll-a concentration ([Chl]) model outputs were compared to regional objective analysis of remotely sensed [Chl] data for the same period. The spatio-temporal variability of modeled and satellite derived [Chl] was analyzed applying an individual Empirical Orthogonal Function (EOF) analysis to monthly time series. Three main modes of sea surface [Chl] variability explained more than 90% of modeled variability and more than 85% of remotely sensed variability. The first EOF accounted for the spring phytoplankton bloom (March–April). The second EOF was related to the spring–summer coastal upwelling season (April–September). The third EOF showed a recurrent [Chl] minimum in winter coinciding with the maximum vertical mixing (February) for the northern part of the region. The influence of the hydrographic conditions on [Chl] variability was explored through a cross-correlation analysis of the three EOFs and an assortment of physical descriptors given by the model: namely the mixing/stratification cycles and the occurrence of coastal upwelling
Descripción 17 páginas, 4 tablas, 14 figuras
Versión del editorhttp://dx.doi.org/10.1016/j.seares.2014.04.003
URI http://hdl.handle.net/10261/97845
DOI10.1016/j.seares.2014.04.003
ISSN1385-1101
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