spatio-temporal variations in hydro-physical and -chemical parameters during a major upwelling event off the southern coast of the gulf of finland in summer 2006

The objective of the paper is to document and examine the majorupwelling event that occurred along the northern coast of Estoniain August 2006. With a horizontal extension of 360 km, the eventwas caused by persistent easterlies and was noticed by a largenumber of holidaymakers, as it turned the temperature of thecoastal sea to a chilly 5-10°C for about a month. Insitu measurements from an RDCP current profiler revealed an along-windcoastal jet of up to 60 cm s^-1 and a weak near-bottom countercurrent.The depths of the pycnocline and nutricline rose. The maximumdrop in water temperature was 16°C, that of salinitywas 3.6 PSU. Analysis of satellite images confirmed the largeextension and the prominence of the event.