Please use this identifier to cite or link to this item:
http://hdl.handle.net/10773/23062
Title: | Modeling the seasonal and interannual variability (2001-2010) of chlorophyll-a in the Iberian margin |
Author: | Reboreda, Rosa Cordeiro, Nuno G. F. Nolasco, Rita Castro, Carmen G. Álvarez-Salgado, Xosé A. Queiroga, Henrique Dubert, Jesus |
Keywords: | Chlorophyll Iberian Margin Modeling North East Atlantic Spring Bloom Upwelling |
Issue Date: | 2014 |
Publisher: | Elsevier |
Abstract: | A 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. |
Peer review: | yes |
URI: | http://hdl.handle.net/10773/23062 |
DOI: | 10.1016/j.seares.2014.04.003 |
ISSN: | 1385-1101 |
Appears in Collections: | CESAM - Artigos DBio - Artigos DFis - Artigos |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Reboreda et al. - 2014 - Modeling the seasonal and interannual variability .pdf | 4.33 MB | Adobe PDF |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.