Effects of the 2003 European heatwave on the Central Mediterranean Sea: surface fluxes and the dynamical response (Articolo in rivista)

Type

• Prodotto della ricerca (Classe)
• Articolo in rivista (Classe)

Label

• Effects of the 2003 European heatwave on the Central Mediterranean Sea: surface fluxes and the dynamical response (Articolo in rivista) (literal)

Anno

• 2007-01-01T00:00:00+01:00 (literal)

Alternative label

• Olita A., Sorgente R., Natale S., Gabersek S., Ribotti A., Bonanno A., and Patti B.. (2007)
  Effects of the 2003 European heatwave on the Central Mediterranean Sea: surface fluxes and the dynamical response
  in Ocean science (Print)
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• Olita A., Sorgente R., Natale S., Gabersek S., Ribotti A., Bonanno A., and Patti B.. (literal)

Pagina inizio

• 273 (literal)

Pagina fine

• 289 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 3 (literal)

Rivista

• Ocean science (Rivista)

Note

• ISI Web of Science (WOS) (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• IAMC (literal)

Titolo

• Effects of the 2003 European heatwave on the Central Mediterranean Sea: surface fluxes and the dynamical response (literal)

Abstract

• The effects of the 2003 European heatwave on the sea surface layer of the Central Mediterranean were studied using a regional 3-D ocean model. The model was used to simulate the period 2000 to 2004 and its performance was validated using remotely-sensed and in situ data. Analysis of the results focused on changes in the Sea Surface Temperature (SST) and on changes to the surface and sub-surface current field. This permitted us to identify and quantify the anomalies of atmospheric and sea surface parameters that accompanied the heatwave. The dominant annual cycle in each variable was first removed and a wavelet analysis then used to locate anomalies in the time-frequency domain. We found that the excess heating affecting the sea surface in the summer of 2003 was related to a significant increase in air temperature, a decrease in wind stress and reduction of all components of the upward heat flux. The monthly averages of the model SST were found to be in good agreement with remotely-sensed data during the period studied, although the ocean model tended to underestimate extreme events. The spatial distribution of SST anomalies as well as their timefrequency location was similar for both the remotely-sensed and model temperatures. We also found, on the basis of the period of the observed anomaly, that the event was not limited to the few summer months of 2003 but was part of a longer phenomenon. Both the model results and experimental data suggest the anomalous heating mainly affected the top 15m of ocean and was associated with strong surface stratification and low mixing. The skill of the model to reproduce the sub-surface hydrographic features during the heatwave was checked by comparison with temperature and salinity measurements. This showed that the model was generally in good agreement with observations. The model and observations showed that the anomalous warming also modified the currents in the region, most noticeably the Atlantic Ionian Stream (AIS) and the Atlantic Tunisian Current (ATC). The AIS was reduced in intensity and showed less meandering, mainly due to the reduced density gradient and low winds, while the ATC was enhanced in strength, the two currents appearing to modulate each other in order to conserve the total transport of Modi- fied Atlantic Water. (literal)

Prodotto di

• Processi di accoppiamento fisico-chimico-biologici in ambienti marini pelagici e costieri (TA.P04.001.001) (Modulo)
• Ecologia delle aree marino costiere e di transizione: processi e funzioni (TA.P05.017.002) (Modulo)
• Institute for coastal marine environment (IAMC) (Istituto)
• Modelli numerici per lo studio degli ecosistemi marini planctonici pelagici e costieri (TA.P04.017.001) (Modulo)
• Sviluppo di tecnologie e metodologie per l'acquisizione e l'interpretazione e la diffusione di dati di geologia marina e ambientale per la gestione sostenibile (TA.P07.016.001) (Modulo)
• Processi innovativi per il monitoraggio e la valorizzazione delle produzioni ittiche pelagiche (AG.P04.016.001) (Modulo)

Autore CNR

• ROBERTO SORGENTE (Persona)
• BERNARDO PATTI (Unità di personale interno)
• ANGELO BONANNO (Unità di personale interno)
• ALBERTO RIBOTTI (Unità di personale interno)

Incoming links:

Autore CNR di

• BERNARDO PATTI (Unità di personale interno)
• ROBERTO SORGENTE (Persona)
• ALBERTO RIBOTTI (Unità di personale interno)
• ANGELO BONANNO (Unità di personale interno)

Prodotto

• Institute for coastal marine environment (IAMC) (Istituto)
• Processi innovativi per il monitoraggio e la valorizzazione delle produzioni ittiche pelagiche (AG.P04.016.001) (Modulo)
• Ecologia delle aree marino costiere e di transizione: processi e funzioni (TA.P05.017.002) (Modulo)
• Modelli numerici per lo studio degli ecosistemi marini planctonici pelagici e costieri (TA.P04.017.001) (Modulo)
• Processi di accoppiamento fisico-chimico-biologici in ambienti marini pelagici e costieri (TA.P04.001.001) (Modulo)
• Sviluppo di tecnologie e metodologie per l'acquisizione e l'interpretazione e la diffusione di dati di geologia marina e ambientale per la gestione sostenibile (TA.P07.016.001) (Modulo)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• Ocean science (Rivista)