scholarly journals Long-term and seasonal anomalies of the Sea of the Azov thermohaline structure for 1913 – 2018

2021 ◽  
Vol 2057 (1) ◽  
pp. 012133
Author(s):  
D M Shukalo ◽  
T Ya Shul’ga
Keyword(s):  
Seasonal Variability ◽  
Hydrological Regime ◽  
Current Paper ◽  
Sea Of Azov ◽  
Thermohaline Structure ◽  
Global Trends ◽  
The Sea Of Azov ◽  
Earth’S Climate ◽  
Linear Trends

Abstract Variability of temperature and salinity as well as quantifying global trends are fundamental for understanding changes in the Earth's climate. In current paper, a long-term variability of the hydrological regime of the Sea of Azov for 1913–2018 is studied. On the basis of oceanographic information, the seasonal variability of temperature and salinity by the areas of the Sea of Azov is analysed. Temperature anomalies have been revealed, periods of salinization and desalination of the Sea of Azov have been noted and linear trends of the anomaly have been obtained.

Long-term changes in the benthic communities of the Sea of Azov related to the sedimentation and hydrological regime

Oceanology ◽  
2008 ◽  
Vol 48 (3) ◽  
pp. 390-400 ◽  
Author(s):  
G. G. Matishov ◽  
I. V. Shokhin ◽  
M. V. Nabozhenko ◽  
V. V. Pol’shin
Keyword(s):  
Benthic Communities ◽  
Hydrological Regime ◽  
Sea Of Azov ◽  
The Sea Of Azov ◽  
Long Term Changes

scholarly journals LONG-TERM TRENDS IN CHANGES IN METEOROLOGICAL PARAMETERS OF THE SEA OF AZOV REGION

2020 ◽  
Vol 1 (5) ◽  
pp. 130-137
Author(s):  
L.V. Dashkevich ◽  
Keyword(s):  
Air Temperature ◽  
Precipitation Amount ◽  
Winter Season ◽  
Atmospheric Precipitation ◽  
Sea Of Azov ◽  
Southern Coast ◽  
The Sea Of Azov ◽  
Wind Speeds ◽  
Seasonal Wind

The article discusses the long-term changes in air temperature, wind speed and precipitation amount according to observations at the Primorsko-Akhtarsk, Kerch, Genichesk hydrometeorological stations on the coast of the Sea of Azov Analysis of the data for the selected periods revealed an increase in the average values of air temperature from the beginning of the 20th to the beginning of the 21st centuries, both at annual values and for all seasons. The largest increase in average values was noted for the winter, slightly less for the spring-summer season. Warming affected the southern coast least of all. On the entire coast of the Sea of Azov, a decrease in the average annual and seasonal wind speeds is observed throughout the entire century under consideration. The value of the standard deviation of wind speeds has decreased significantly, especially in the winter season. The largest decrease in the average annual and seasonal wind speeds (more than 2 times) was noted at the Primorsko-Akhtarsk HMS. From the beginning of the 20th century to the beginning of the 21st century, there is an increase in the average annual amounts of atmospheric precipitation on the western and southern coast of the sea (by about 130 mm) with an increase in the variability of their amount from year to year. Seasonal changes in the distribution of precipitation were revealed: in the modern period, the proportion of winter and spring precipitation has increased, while the proportion of autumn and, especially, summer precipitation has decreased. The greatest changes in the precipitation regime were noted for the Primorsko-Akhtarsk HMS.

scholarly journals Dynamics of the ice regime of the Sea of Azov in the XX–XXI centuries

2018 ◽  
Vol 58 (3) ◽  
pp. 373-386 ◽  
Author(s):  
N. V. Yaitskaya ◽  
A. A. Magaeva
Keyword(s):  
Ice Cover ◽  
Sea Surface ◽  
Sea Of Azov ◽  
The Sea Of Azov ◽  
Azov Sea ◽  
Fast Ice ◽  
Ice Regime ◽  
Degree Of Severity ◽  
Ice Period

The ice regime of the Sea of Azov over the period of 20th and 21nd centuries was investigated using the author's GIS «The ice regime of the Southern Seas of the Russia». The long-term dynamics of the ice cover, duration of the ice stay as well as beginning and end of the ice period were considered. It has been found that for the period of 1950–2015 the average annual value of the Azov Sea ice cover area is 33%, while the average area of the fast ice is 6.3% of the total area of the sea. Value of duration of the ice cover stay on the sea surface has been refined, and this value is 115 days near the hydro-meteorological station (HMS) Taganrog and 63 days near the HMS Kerch. The typification of winters according to the degree of severity was performed on the basis of data from three coastal meteorological stations: Taganrog, Genichesk, and Kerch. Winters of moderate type were shown to be prevailing during the entire analyzed period. Totally, 15 severe, 70 moderate and 40 mild winters were isolated for the period 1883-2015, while for 1950–2015 the statistics was the following: 9 severe, 43 moderate, and 14 mild winters in Taganrog, and 10 severe, 40 moderate, and 16 mild winters in Kerch.

Long-term variability of the water transparency (Secchi Depth) in the Sea of Azov

Oceanology ◽  
2013 ◽  
Vol 53 (3) ◽  
pp. 287-293 ◽  
Author(s):  
V. V. Sorokina ◽  
V. V. Kulygin
Keyword(s):  
Secchi Depth ◽  
Water Transparency ◽  
Sea Of Azov ◽  
The Sea Of Azov

scholarly journals RESEARCH OF LONG-TERM SEASONAL VARIABILITY OF TEMPERATURE AND SALINITY IN THE SEA OF AZOV FOR THE PERIOD 1913–2018

2020 ◽  
Vol 1 (5) ◽  
pp. 220-223
Author(s):  
D.M. Shukalo ◽  
◽  
T.Y. Shul’ga ◽  
Keyword(s):  
Water Temperature ◽  
Cold Water ◽  
The Black Sea ◽  
Sea Of Azov ◽  
Summer Period ◽  
Marine Hydrophysical Institute ◽  
The Sea Of Azov ◽  
Azov Sea ◽  
Oceanographic Data

One of the most demanded directions of oceanographic problems is the study of long-term variability and modeling of future climatic changes and also the possibility of obtaining continuous information on the thermohaline structure of the sea based on the joint use of remote sensing data and the results of assimilation modeling. In current paper, research, of the Sea of Azov for the period 1913–2018 was carried out. We used the data of contact measurements from the oceanographic data base of the SSC RAS, Atlas of climate change in large marine ecosystems of the Northern Hemisphere, as well as data from the oceanographic data bank of the Marine Hydrophysical Institute RAS. Based on the analysis of the information, the calculation of the average monthly temperature and salinity was carried out, the periods of anomalous temperature were revealed, the periods of salinization and desalination of the Azov Sea also were noted. Data analysis made possibility to identify intrasecular climate fluctuations. Abnormally cold water temperature in winter was noted in the periods: 1926–1932, 1951– 1956, 2003–2012. In turn, the abnormally warm water temperature in winter, which was recorded in the periods: 1935–1939, 1958–1972, 1983–1992. by accompanied a cold spring-summer period. During the last five years the spring-summer period is characterized by an increased water temperature of the Azov Sea. The long-term variability of the salinity of the Sea of Azov significantly depends on the inflow of saltier waters of the Black Sea and river runoff. Due to these circumstances, the Sea of Azov is characterized by periods of salinization and desalination: the period of salinization was recorded from 1955 to 1973, a shorter period of desalination falls on 2003–2018. On average, the value of the ratio between the mean monthly salinity values during these periods is 2,2 times.

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