The Structure of Fields of Oceanological Quantities in the Upwelling Zone at the Herakleian Peninsula (Crimea) in August 2019

Abstract

Based on the data obtained during an expedition of Marine Hydrophysical Institute in August 2019, the paper considers the morphology of the fields of temperature, salinity, content of total suspended matter and coloured dissolved organic matter in two adjacent areas located along the north-west (area 1 ) and south-west (area 2 ) coasts of the Herakleian Peninsula. The authors used methods and approaches based on classical oceanographic analysis of the field structure of quantities under study. It is shown that in area 1 with the coastline oriented at an acute angle to the wind arrow, advective processes pre-vailed, and the structure of the fields of oceanological elements contained no anthropogenic features. In area 2 , the coastline of which is located along the normal to the wind arrow, the surge effect and the rise of water from deep horizons to the sea surface were noted. Here, in the water column, lenses with low salinity, increased content of total suspended and dissolved organic matter were found. These lenses arose under the influence of wastewater distributed in the upwelling ascensional circulation system from a nearby wastewater collector.