13 documents found, page 1 of 2
Suitability of wave energy converters in northwestern Spain under the near futu...
Arguilé-Pérez, B.; Ribeiro, A.S.; Costoya, X.; deCastro, M.; Gómez-Gesteira, M.Marine renewable energies can play a key role by reducing the dependency on fossil fuels and, therefore, mitigating climate change. Among them, it is expected that wave energy will experience rapid growth in the upcoming decades. Thus, it is important to know how wave climate will change and how suitable the wave energy converters (WECs) will be to the new wave conditions. This paper aims to evaluate the capabi...
How can ocean warming at the NW Iberian Peninsula affect mussel aquaculture?
Des, M.; Gómez-Gesteira, M.; deCastro, M.; Gómez-Gesteira, L.; Sousa, M. C.Understanding and forecasting future consequences of climate change in mussel aquaculture industry require the assessment of changes in physical parameters which may affect mussel growth. The FLOW module of Delft3D model forced with climatic data was validated and calibrated for the Rías Baixas (NW Iberian Peninsula), one of the areas with the highest mussel production in the world. This model was used to perfo...
The impact of climate change on the geographical distribution of habitat-formin...
Des, M.; Martínez, B.; deCastro, M.; Viejo, R. M.; Sousa, M. C.; Gómez-Gesteira, M.In the current scenario of climate change characterized by a generalized warming, many species are facing local extinctions in areas with conditions near their thermal tolerance threshold. At present, the southern limit of the geographical distribution of several habitat-forming algae of cold-temperate affinities is located in the Northwest Iberian Peninsula, and the Rías Baixas may be acting as contemporary re...
Projections of wind energy resources in the Caribbean for the 21st century
Costoya, X.; deCastro, M.; Santos, F.; Sousa, M.C.; Gómez-Gesteira, M.The Caribbean has suitable conditions for a significant wind energy development, which makes a good planning for the future renewable energy mix essential. The impact of climate change on Caribbean wind power has been analyzed by means of an ensemble of CORDEX regional climate models (RCMs) under the RCP8.5 warming scenario. The offshore wind energy resource was classified for the historical period and for the ...
Changes in sea surface temperature seasonality in the Bay of Biscay over the la...
Costoya, X.; deCastro, M.; Gómez-Gesteira, M.; Santos, F.Sea surface temperature (SST) variability was analyzed for the Bay of Biscay over the period 1982–2014 using data from NOAA 1/4 degree daily OI database. Trends were analyzed on a monthly scale since previous studies suggest that the rate of change was not homogeneous at annual and seasonal scales. The warming calculated for the whole area at the annual scale was 0.26 ± 0.03°C dec−1, although the intensity was ...
Has upwelling strengthened along worldwide coasts over 1982-2010?
Varela, R.; Álvarez, I.; Santos, F.; deCastro, M.; Gómez-Gesteira, M.Changes in coastal upwelling strength have been widely studied since 1990 when Bakun proposed that global warming can induce the intensification of upwelling in coastal areas. Whether present wind trends support this hypothesis remains controversial, as results of previous studies seem to depend on the study area, the length of the time series, the season, and even the database used. In this study, temporal and...
Analysis of the influence of river discharge and wind on the Ebro turbid plume ...
Fernández-Nóvoa, D.; Mendes, R.; deCastro, M.; Dias, J. M.; Sánchez-Arcilla, A.; Gómez-Gesteira, M.The turbid plume formed at many river mouths influences the adjacent coastal area because it transports sediments, nutrients, and pollutants. The effects of the main forcings affecting the Ebro turbid plume were analyzed using data obtained from the Moderate Resolution Imaging Spectroradiometer (MODIS) sensor onboard the Aqua and Terra satellites over the period 2003–2011. Composite images were obtained for day...
Differences in coastal and oceanic SST trends due to the strengthening of coast...
Santos, F.; Gomez-Gesteira, M.; deCastro, M.; Alvarez, I.Coastal and oceanic sea surface temperature (SST) trends were analyzed in the Benguela upwelling ecosystem from the seventies on. Monthly SST data were obtained from the UK Meteorological Office, Hadley Center at two transects in front of the Namibia coast and the western coast of South Africa. A positive SST trend (0.06 °C dec−1) is observed at open sea locations and a negative one (−0.13 °C dec−1) near shore....
Analysis of chlorophyll a concentration along the Galician coast: seasonal vari...
Alvarez, I.; Lorenzo, M. N.; deCastro, M.The spatial and temporal distribution of chlorophyll a (Chl a) concentration was analysed along the Galician coast from 1998 to 2007. Sea surface temperature and Ekman transport data were also used to investigate the relationship between the ocean–atmosphere conditions and Chl a formation and variability. The west coast showed the highest Chl a concentration, with three peaks of maximum values (February, April–...
Galicia upwelling revisited: out-of-season events in the rias (1967–2009)
Álvarez, I.; Prego, R.; deCastro, M.; Varela, M.Over the last decades several studies have been conducted on upwelling along the Galician coast that have significantly improved the knowledge of this process. These investigations showed that upwelling along this coast is a frequent phenomenon during the spring and summer months, pumping colder Eastern North Atlantic Central Water into the rias. Nevertheless, several upwelling events in autumn and winter have ...