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| Essen, Hh; Gurgel, Kw; Schirmer, F; Sirkes, Z. |
| Surface currents in the Dead Sea, as measured by two land-based HF (high frequency) radar stations in autumn 1984, are analysed. High horizontal variability is observed, which may partly be explained by the inhomogeneous wind field. Decomposition into empirical orthogonal eigenfunctions (EOF) shows that the currents may not be represented by a small number of patterns. The forcing of currents by wind is proved through significant correlation between both. Spatially-averaged rotary spectra provide evidence of the presence of inertial oscillations. The data set allows the calculation of horizontal derivatives. Time series of divergence and curl are presented. By estimating the advective terms of the Navier-Stokes equation it is shown that nonlinear effects... |
| Tipo: Text |
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| Ano: 1995 |
URL: http://archimer.ifremer.fr/doc/00097/20872/18489.pdf |
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| Simpson, Jh; Bos, Wg; Schirmer, F; Souza, Aj; Rippeth, Tp; Jones, Se; Hydes, D. |
| The nature of the physical regime in the vicinity of the Rhine ROFI (Region Of Freshwater Influence) has been determined in a series of collaborative observations. Extensive surveys with shipboard CTD/rosette systems have been used to complement time series observations by an array of moorings instrumented with currentmeters, transmissometers and fluorimeters. The observations reveal a highly variable system in which the influence of the freshwater input from the Rhine extends northeastwards from the source and out to 30 km from the coast. The mean flow within this region is generally parallel to the coast (northeastwards) and with surface speeds, determined by the HF radar, of 15-20 cm.s-1. The residual current at sub-tidal frequencies was strongly... |
| Tipo: Text |
Palavras-chave: FRESH-WATER INFLUENCE; TIDAL MIXING; PERIODIC STRATIFICATION; COASTAL REGION. |
| Ano: 1993 |
URL: http://archimer.ifremer.fr/doc/00099/21050/18676.pdf |
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