Open AccessTHE COASTLAND CHANGES OF THE BLACK SEA WESTERN PART IN CONNECTION WITH THE CLIMATIC FACTORS
Author(s) -
О. Р. Андріанова,
A. A. Batyrev,
L. M. Roschin
Publication year - 2022
Publication title -
vìsnik odesʹkogo nacìonalʹnogo unìversitetu. geografìčnì ta geologìčnì nauki
Language(s) - English
Resource type - Journals
eISSN - 2415-315X
pISSN - 2303-9914
DOI - 10.18524/2303-9914.2021.2(39).246189
Subject(s) - hydrometeorology , climatology , environmental science , black sea , climate change , period (music) , precipitation , bay , sea level , air temperature , water level , physical geography , geography , oceanography , geology , meteorology , physics , cartography , acoustics
Global climate change and regional variability are the main impact factors on the coastal environment features. The purpose of the research was to study and evaluate the dynamics of land on the coast of the western part of the Black Sea against the backdrop of climate change and in connection with the influence of various hydrometeorological factors and assess their contribution to the optimization of life and comfortable living of people.The analysis was done on the basic of the hydrometeorological information on the Odesa port station for the whole observation period up to 2017: more than one hundred years series of average monthly values of air temperature, precipitation, sea level; more than half a century series of water temperature and salinity and the average annual (> 100 years) and average monthly (> 50 years) data on the rates of the rivers flowing (Danube and Dnepr). The series of sea level by stations were considered for estimating the intensity of fluctuations of the coastal land along the western part of the Black Sea: 6 Ukrainian – Vylkove, Chornomorsk, Odesa, Yuzhne, Ochakiv and Sevastopil; 2 Romanian – Constanta and Sulina; and 2 Bulgarian – Burgas and Varna.The climate norms have increased in all parameters over the past 70 years, relative to whole observation period, exclude the water salinity, that of the decreases accordingly. The air temperature in Odesa increased by 0,9 °C, the water temperature – by 0,5 °C for the period considered. A common feature of all parameters in the interannual variability, is the presence of well-defined wave fluctuations of different scales which occurs against the background of alternating trends. The connection with the El Niño phenomenon is one of the reasons for the observed surges in changes in the water and air environments in the Black Sea region. The level fluctuations in the Black Sea are synchronous on low-frequency scales (their period is more than 5 years) because they are under the influence of global climate processes on our planet. The shortterm changes in the Black Sea level are determined by regional characteristics and are created by local factors. The dynamics of the land motions are the result of the action of sea level fluctuations and tectonic processes.