MAIN RESULTS OF SUMMER OCEANOGRAPHIC SURVEYS IN THE EASTERN GULF OF FINLAND IN THE FRAMEWORK OF THE TOPCONS PROJECT.

Fieldwork was conducted in two stages: 23-27.06.2013 and 17-22.07.2013, in the Eastern Gulf of Finland by sailing-motor catamaran «Centaurus II» in the framework of the TopCons Project. Main scientific direction of the summer oceanographic surveys was conduction of experimental research for environmental monitoring of marine ecosystem in the Eastern Gulf of Finland. Full complex of hydrological and hydrochemical observations has included measurement of salinity and water temperature, flow parameters in the bottom layer at four stations within the specified polygon, sampling and their quantitative chemical analysis. Authors present the main analysis results of hydrophysical and hydrochemical fields for the period of observations. The fieldwork is done in the framework of the SOUTH-EAST FINLAND - RUSSIA ENPI CBC PROGRAMME 2007-2013 Project "TOPCONS - Transboundary tool for spatial planning and conservation of the Gulf of Finland", Grant Contract 2011-022-SE511. The advanced analyzing made with financial support of the Ministry of education and science of within the state order 2014/166 and state contract 14.515.11.0002. [ABSTRACT FROM AUTHOR]