Articles

Title:	Water optical properties during upwelling events along the Hel Peninsula (the Baltic Sea)
Authors:	Matciak Maciej Gromisz Sławomira Szymelfenig Maria Kaluźny Marcin Kozłowski Łukasz
Abstract:	Standard seawater optical properties (Secchi depth, PAR irradiance profiles, light-beam attenuation coefficient and fluorescence of chlorophyll a) have been measured in the years of 2000-2002 during seven upwelling events that took place along the northern seaside of the Hel Peninsula (the southern Baltic Sea). In the case of strong upwelling all optical parameters showed significant differences between the transparent waters from the upwelling plume and the turbid coastal ones. Comparison of spatial distributions of yellow-green (560 nm) and red (660 nm) light-beam attenuation coefficients in the water body revealed an upward movement of the bottom water. It seems that in some cases it was not only caused by the upwelling forcing but was also connected with the hydrostatic instability of locally less saline waters discovered at greater depths. Such an observation does not correspond to the typical picture of hydrological regime generated by the upwelling. The relation between red light attenuation and temperature revealed possibly important role of gradual water warming in primary production what could be observed inside cold, surface upwelling waters.
DOI:
Type of paper:	Original research paper
Pages:	35 to 51
Cytation:	Matciak M., Kaluźny M., Gromisz S., Szymelfenig M., 2005, Water optical properties during upwelling events along the Hel Peninsula (the Baltic Sea), Ocean. Hydrob. Studies, 34(Supl. 2): 35-51
Keywords:	coastal upwelling, Baltic Sea, Hel Peninsula, seawater optical properties
Year:	2005
Category:
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