Deep water exchange in the Baltic Proper

Abstract

Deep-water exchange and mixing properties were analysed on the basis of temperature and salinity data measured during the period 1970-1990. The renewal of the deep water in the Baltic Proper consists of inflow from upstream basins. The inflowing dense water is diluted by surface water and on a 20-year average increased by a factor of 4, when entering from the Kattegat into the Landsort Deep. Three main mixing zones were localized. Applying the geostrophic flow model on salinity data, time series of deep current flow rates were calculated. -from Authors