Variability investigation of the major chemical and physical characteristics of sea water around zmiinyi island in 2004-2013
Journal Title: Вісник Одеського національного університету. Географічні та геологічні науки - Year 2016, Vol 21, Issue 2
Abstract
Purpose. Waters of the North-Western part of the Black Sea (NWBS) receiving the discharges from three large rivers (255,7 km3 per year) differ from the waters of the Black Sea in their unique physical and chemical characteristics. In this context one of the most important tasks is assessment of the large rivers’ discharge impacts on the estuarine areas of the Black Sea. The objective of the work has been to reveal the variability of physical and chemical characteristics of marine water near the Zmiinyi Island under impact of the Danube discharge and wind conditions in 2004-2013. Materials & Methods. Results of meteorological (wind speed and direction, air temperature), hydrological and hydrochemical observations and measurements (temperature, transparency, salinity, density and relative oxygen content, pH value) performed in the island coastal waters in 2004-2013 have been used as the source data. Statistical and correlation analysis performed for the three sectors of wind direction in the Zmiinyi Island area (“Danube”, “NWBS” (north-western Black Sea) and “Black Sea”) have been used as a basic research tools. Results. Many-years trends in the changes of the main physicochemical characteristics of marine waters near the Zmiinyi Island have been analysed. For the period MayDecember 2004-2013 the tendency of average monthly water temperature values decreasing has been identified, as well as the tendency of increasing of average monthly values of sea level, transparency, salinity, pH, concentration of and saturation with dissolved oxygen. Quantitative confirmation of significant influence of the Danube discharge on salinity, transparency and water level near the Zmiinyi Island has been received. For the period May-December 2004-2013, increasing repeatability of wind directions was revealed for the sector “Danube” and decreasing repeatability for the sector “NWBS”. No significant trends have been established for repeatability of the “Black Sea” sector. Division of datasets into wind sectors enabled us to establish certain regularities in the hydrological and hydrochemical regime of marine water in the Zmiinyi Island area. In particular, closer connections of salinity, transparency and relative oxygen content with wind speed were identified for the sectors “Danube and “NWBS” and insignificant connections for the “Black Sea” sector. Closer connections of pH, oxygen concentration and air temperature were revealed with the speed of wind from the sectors “Danube” and “Black Sea” and less significant connections for the “NWBS” sector.
Authors and Affiliations
Ye. І. Gazyetov, V. І. Medinets
Keywords
Related Articles
- EP ID EP272620
- DOI -
- Views 102
- Downloads 0
GEOGRAPHICAL COMPONENTS SUBJECT DOMAIN RECREATIONAL AND TOURIST ACTIVITIES
Purpose. The purpose of this work – to substantiate the geographical bases of recreation and tourism activities, to unlock the potential of social geography in shaping the theory and teaching methods of the study of recr...
PELOIDS OF THE DEEP BLACK SEA – MATERIAL COMPOSITION, PROPERTIES AND POTENTIAL RESOURCES
The main purpose of this study is to prove that certain types of genetic materials of the deepwater Black Sea sediments correspond to the notion of “deepwater peloids”, and that their stocks in the upper layers of the bo...
RENDZINAS OF THE NORTHERN MOLDOVA FOREST-STEPPE
Purpose. On the territory of Moldova the rendzina soils are developed on the toltrel ridges and on exposed limestone surfaces in valleys of the Dniester and Prut rivers and its numerous tributaries. The aim of the study...
SPATIAL DISTRIBUTION OF HYDROLOGICAL ELEMENTS CHARACTERISTIC IN THE MIDDLE PART OF SUKHOY LIMAN IN THE SUMMER TIME
Problem Statement and Purpose.The middle part of the Sukhoy Liman represents a perspective reservoir for development of the port of Ilyichevsk (Black Sea). Water- hydrology of a middle part Sukhoy Liman was not systemati...
MODERN LATEST TRENDS IN REGIONAL GEODEMOGRAPHIC PROCESS IN UKRAINE
The article examines the modern latest trends in regional geodemographic processes (GDP) in Ukraine. The dynamics of the population of Ukraine and its regions for the past twenty years are reviewed. Target position of an...