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| Esnaola, G.; Saenz, J.; Zorita, E.; Fontan, A.; Valencia, V.; Lazure, Pascal. |
| The combination of remotely sensed gappy Sea surface temperature (SST) images with the missing data filling DINEOF (data interpolating empirical orthogonal functions) technique, followed by a principal component analysis of the reconstructed data, has been used to identify the time evolution and the daily scale variability of the wintertime surface signal of the Iberian Poleward Current (IPC), or Navidad, during the 1981-2010 period. An exhaustive comparison with the existing bibliography, and the vertical temperature and salinity profiles related to its extremes over the Bay of Biscay area, show that the obtained time series accurately reflect the IPC-Navidad variability. Once a time series for the evolution of the SST signal of the current over the last... |
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| Ano: 2013 |
URL: http://archimer.ifremer.fr/doc/00156/26738/24815.pdf |
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| Esnaola, Ganix; Saenz, J.; Zorita, E.; Lazure, Pascal; Ganzedo, U.; Fontan, A.; Ibarra-berastegi, G.; Ezcurra, A.. |
| The coupled variability of the Sea Surface Temperature (SST) and atmosphere-ocean surface heat fluxes over the Bay of Biscay (Eastern North Atlantic) has been analyzed. Daily surface heat fluxes from different meteorological reanalyses are combined with a high resolution reconstructed satellite SST data set by means of Lagged Maximum Covariance Analysis (MCA). Lagged MCA is applied at different spatial scales. Its results are interpreted within the framework of Hasselmann's stochastic climate model. The surface heat-flux feedback on SST is confirmed to be generally negative. No clear relation is found between the first MCA expansion series and the leading Sea Level Pressure (SLP) patterns. However, a clear relation is found between the second expansion... |
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| Ano: 2012 |
URL: http://archimer.ifremer.fr/doc/00088/19937/17605.pdf |
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