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| Registros recuperados: 10 | |
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| Morisset, S.; Reverdin, Gilles; Boutin, Jacqueline; Martin, N.; Yin, X.; Gaillard, Fabienne; Blouch, Pierre; Rolland, J.; Font, J; Salvador, J.. |
| Tipo: Text |
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| Ano: 2012 |
URL: http://archimer.ifremer.fr/doc/00114/22552/20240.pdf |
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| Zine, S; Boutin, J; Font, J; Reul, Nicolas; Waldteufel, P; Gabarro, C; Tenerelli, Joseph; Petitcolin, F; Vergely, J; Talone, M; Delwart, S. |
| The L-band interferometric radiometer onboard the Soil Moisture and Ocean Salinity mission will measure polarized brightness temperatures (Tb). The measurements are affected by strong radiometric noise. However, during a satellite overpass, numerous measurements are acquired at various incidence angles at the same location on the Earth's surface. The sea surface salinity (SSS) retrieval algorithm implemented in the Level 2 Salinity Prototype Processor (L2SPP) is based on an iterative inversion method that minimizes the differences between Tb measured at different incidence angles and Tb simulated by a full forward model. The iterative method is initialized with a first-guess surface salinity that is iteratively modified until an optimal fit between the... |
| Tipo: Text |
Palavras-chave: Salinity; Oceanography; Microwave radiometry. |
| Ano: 2008 |
URL: http://archimer.ifremer.fr/doc/2008/publication-3914.pdf |
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| Font, J; Salat, J; Tintore, J. |
| Through the analysis of hydrographic data collected during 16 cruises (1975-1985), we identify and describe the seasonal characteristics and the permanent features of the circulation in the Catalan Sea (north-western Mediterranean). Two fronts follow the continental shelf break on the peninsular and Balearic sides, separating the central dense waters from the surrounding lighter waters of Atlantic and continental origins. One is mainly produced by strong salinity gradients (Catalan front) and the other by temperature gradients (Balearic front). Two currents are associated with these fronts: the southwest Catalan current and the northeast Balearic current. Strong vertical mesoscale motions have been observed on several occasions in the weakly stratified... |
| Tipo: Text |
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| Ano: 1988 |
URL: http://archimer.ifremer.fr/doc/00267/37808/35889.pdf |
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| Alberola, C; Rousseau, S; Millot, C; Astraldi, M; Font, J; Garcialafuente, J; Gasparini, Gp; Send, U; Vangriesheim, Annick. |
| A large number of several-month current time series is now available in the western Mediterranean Sea, and harmonic and spectral analyses provide spatially coherent information about the major tidal (M2, S2, N2 and K1) currents in the region. When they are significant, these currents are generally barotropic, they mainly rotate clockwise and their ellipses have orientations that are strongly dependent on the local bathymetry. From the Alboran Sea to the Algerian Basin, the Ibiza Channel and as far as the Sardinian Channel, the velocities of the semidiurnal components continuously decrease from a few 10(-2) m/s in the west to 10(-3) m/s and even less in the east. The phases increase eastward from the Alboran Sea to 3-4 degrees E in the western Algerian... |
| Tipo: Text |
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| Ano: 1995 |
URL: http://archimer.ifremer.fr/doc/00097/20777/18518.pdf |
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| Lehucher, Pm; Beautier, L; Chartier, M; Martel, F; Mortier, L; Brehmer, P; Millot, C; Alberola, C; Benzhora, M; Taupierletage, I; Dhieres, Gc; Didelle, H; Gleizon, P; Obaton, D; Crepon, M; Herbaut, C; Madec, G; Speich, S; Nihoul, J; Beckers, Jm; Brasseur, P; Deleersnijder, E; Djenidi, S; Font, J; Castellon, A; Garcialadona, E; Lopezgarcia, Mj; Manriquez, M; Maso, M; Salat, J; Tintore, J; Alonso, S; Gomis, D; Viudez, A; Astraldi, M; Bacciola, D; Borghini, M; Dellamico, F; Galli, C; Lazzoni, E; Gasparini, Gp; Sparnocchia, S; Harzallah, A. |
| The present paper describes the major results obtained from 1989 to 1992 by the EUROMODEL group in studying the circulation in the Western Mediterranean Sea. Particular emphasis has been given to the physical processes responsible for seasonal and mesoscale variabilities. Observations (in situ and satellite), together with theoretical, physical and numerical models, have been widely used in the course of these studies. Attention has been focused on the dynamics of the northern basin (deep water formation, dynamics of the Northern Mediterranean Current, circulation and shelf/slope interaction in the Balearic Sea) and of the southern basin (Alboran Sea circulation, instabilities of the Algerian Current). The straits dynamics have been studied with particular... |
| Tipo: Text |
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| Ano: 1995 |
URL: http://archimer.ifremer.fr/doc/00097/20776/18519.pdf |
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| Isern-fontanet, Jordi; Turiel, A; Garcia Ladona, E; Font, J. |
| In this paper we investigate the validity of the multifractal formalism to study sea surface temperature ( SST). It is shown that SST patterns observed in moderate resolution SST images have anomalous scaling properties characteristic of a multifractal structure. The most probable origin of the observed structures is the turbulent character of the oceanic flow as they evolve slowly and are very persistent in times compatible with ocean mesoscale dynamics ( several days). The spectrum of singularity exponents indicates that the dynamics of the processes leading to the geometrical arrangement of the SST patterns is quite general over the available range of scales. As a consequence, multifractal techniques can be used to extract properties of the underlying... |
| Tipo: Text |
Palavras-chave: Operational oceanography; Remote sensing; MSS method. |
| Ano: 2007 |
URL: http://archimer.ifremer.fr/doc/2007/publication-2644.pdf |
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| Garcialadona, E; Castellon, A; Font, J; Tintore, J. |
| The Balearic basin is a semi-enclosed basin located in the western Mediterranean Sea, connecting the Gulf of Lions and the Alboran basin. While the characteristics and circulation of the water masses have been rather well established, the exchanges with adjacent basins, essential to our understanding of the circulation in the western Mediterranean and for validating outputs of general circulation models, have never been determined in detail. We present here the data from the FE-89 (June 1989) Spanish cruise, during which high-resolution CTD and ADCP measurements were performed on the open boundaries of the Balearic basin. The fluxes for all the boundaries were calculated in a quasi-synoptic fashion. The values found in the Ibiza and Mallorca channels... |
| Tipo: Text |
Palavras-chave: Circulation; Western Mediterranean; Balearic current; Hydrography; Volume transports. |
| Ano: 1996 |
URL: http://archimer.ifremer.fr/doc/00094/20507/18176.pdf |
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| Font, J; Garcialadona, E; Gorriz, Eg. |
| The Liguro-Provenco-Catalan or Northern Current, which contours the continental slope of the north-western Mediterranean Sea, has been described as a permanent flow affected by important variability at different scales. Many observations indicate a higher flux in winter than in summer, while the occurrence of mesoscale events appears to be a common characteristic. The opportunity of examining several years of current meter data at a location close to the inner border of the Northern Current has definitively demonstrated the existence of a seasonality in the mesoscale variability. Although the records do not concern the core of this current, the consistency of the several characteristics we have determined with results found by other authors in the Ligurian... |
| Tipo: Text |
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| Ano: 1995 |
URL: http://archimer.ifremer.fr/doc/00096/20772/18398.pdf |
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| Poulain, P; Barbanti, R; Font, J; Cruzado, A; Millot, C; Gertman, I; Griffa, A; Molcard, A; Rupolo, V; Le Bras, Sylvie; De La Villeon, L. |
| In the framework of the EU-funded MFSTEP project, autonomous drifting profilers were deployed throughout the Mediterranean Sea to collect temperature and salinity profile data and to measure subsurface currents. The realization of this profiler program in the Mediterranean, referred to as MedArgo, is described and assessed using data collected between June 2004 and December 2006 (including more than 2000 profiles). Recommendations are provided for the permanent future implementation of MedArgo in support of operational oceanography in the Mediterranean Sea. More than twenty drifting profilers were deployed from research vessels and ships-of-opportunity in most areas of the Mediterranean. They were all programmed to execute 5-day cycles with a drift at a... |
| Tipo: Text |
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| Ano: 2007 |
URL: http://archimer.ifremer.fr/doc/2007/publication-3529.pdf |
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| Alberola, C; Millot, Claude; Font, J. |
| In the western Mediterranean Sea, the Northern Current is one of the major veins and is formed by the junction, in the Ligurian Sea, of the currents flowing northward along each side of Corsica; it is recognized as an entity along the continental slope as far as the Catalan Sea; surrounding the central zone where dense water formation occurs in winter. The seasonal and mesoscale variabilities of the Northern Current are analysed from a fortnightly hydrological survey carried out off Nice to a distance of similar to 55 km, from October 1990 to July 1991, and from similar to 30 current time series collected as deep as 2000 m, on four moorings set within a similar to 30 km coastal band from December 1990 to May 1991, in the framework of the PRIMO-O... |
| Tipo: Text |
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| Ano: 1995 |
URL: http://archimer.ifremer.fr/doc/00096/20770/18396.pdf |
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| Registros recuperados: 10 | |
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