| Intensity and spectral characteristics of the fluorescence of water samples collected along the transect Cherbourg-Isle of Wight during four cruises for excitations at 370, 313 and 270 nm have been investigated within the framework of the FluxManche II program. Seasonal and spatial differences appeared to reflect on the one hand, variations in terrestrial inputs, and on the other hand, waters masses structuring. The observed linear variation of the fluorescence intensity with salinity indicates a gradual dilution of the continental humic material in going from the coasts to the central part of the English Channel. The largest signal was observed for the English coastal waters in agreement with important terrestrial inputs from the Solent river. While the... |
