|
|
|
|
|
| Broche, P; Devenon, Jean-luc; Forget, P; De Maistre, Jc; Naudin, Jj; Cauwet, G. |
| The complicated dynamic processes occurring when fluvial waters mix with marine waters control the nature and the fluxes of materials exported tay rivers to the sea. Understanding these processes is of primary importance in evaluating budgets. In wide-open estuarine situations these processes take place under the influence of an intense turbulence induced by tides. Conversely, the Rhone waters spread into the Mediterranean Sea in the form of an easily distinguishable buoyant plume often extending far offshore from the mouth of the river. The aim of this study is to describe the dynamic and hydrological fields on the basis of eulerian VHF radar mapping of surface currents coupled with lagrangian in situ physical or geochemical measurements. This paper... |
| Tipo: Text |
Palavras-chave: Panache fluvial; Radar VHF; Rhône; Dynamique; River plume; VHF radar; Rhone; Dynamics. |
| Ano: 1998 |
URL: http://archimer.ifremer.fr/doc/00325/43636/43229.pdf |
| |
|
|
| Younes, Wan; Bensoussan, N; Romano, Jc; Arlhac, D; Lafont, Maxime. |
| Between 1996 and 2000, 79 cruises have been achieved following always the same transect between Marseilles and the Rhone river's mouth. While cruising, salinity, temperature and fluorescence of surface waters (1.5 m) were recorded every minute, in association with precise GPS position. The whole set of data. (i.e. 128 measured points per cruise) constitutes the Sorcom series whose synthetic results ate presented here. Despite the high spatial and temporal. variability encountered between two successive cruises, the regularity and duration of the sampling strategy permitted to define coherent spatial zonation and temporal evolutions. In the Cape Couronne vicinity the dynamic of the eastern extension of the dilution plume clearly changes. Westward, waters... |
| Tipo: Text |
Palavras-chave: Rhône; Panache de dilution; Observation à long terme; Fluorescence; Salinité; Rhone river; Dilution plume; Long term observation; Fluorescence; Salinity. |
| Ano: 2003 |
URL: http://archimer.ifremer.fr/doc/00321/43260/42991.pdf |
| |
|
| |
|
|
| Charmasson, S. |
| The low tidal range of the Mediterranean Sea and the high sediment load of the Rhone induce the formation of an important submarine delta. The Cs-137 inventory in sediment on a 480 km(2) area near the Rhone mouth reached 19.6 TBq in 1990. The spatial distribution of both sediment accumulation rates and (CS)-C-137 concentrations in this area confirm the existence of a spatially well-delimited zone, i.e. the prodelta, where both parameters are the highest. Thus, 40% of the total amount of Cs-137 stored in this 480 km(2) area was found within the prodelta (30 km(2)) in the close vicinity of the river mouth. This attests to the efficiency of the (CS)-C-137 trapping by the prodelta sediments. A study on the part the different (CS)-C-137 sources in the... |
| Tipo: Text |
Palavras-chave: Rhône; Méditerranée; Radioéléments; Sédiment; Inventaire; Rhone; Mediterranean Sea; Radionuclides; Sediment; Inventory. |
| Ano: 2003 |
URL: http://archimer.ifremer.fr/doc/00321/43266/42997.pdf |
| |
|
|
|
