Strait of Kerch water structure derived from the data of contact measurements and satellite imagery

Chepyzhenko, Anna A.; Чепыженко, А. И.; Kushnir, Vladimir

doi:10.1134/s0001437015010038

Cited by 6 publications

(3 citation statements)

References 2 publications

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“…In winter, the period of ice formation will lengthen and the thickness of ice will increase. As a result, the shortage of oxygen and subsequent death of fish will be a habitual phenomenon in the Taman Gulf [9].…”

Section: Discussionmentioning

confidence: 99%

About Some Environmental Consequences of Kerch Strait Bridge Construction

Ivanovych¹,

Vasylovych²,

Shevchuk³

et al. 2018

HYD

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After the annexation of the Crimean peninsula by the Russian Federation, the construction of the Kerch bridge crossing, which has not been coordinated with Ukraine, has been started, which in the near future may lead to the destruction of the unique flora and fauna of the Black and Azov Seas. The results of the Kerch Strait Bridge construction consequences for the environment are presented. The main sources of data were the materials of remote sensing (RS), National Aeronautics and Space Administration (NASA), European Space Agency (ESA), US Geological Survey (USGS), literary sources, as well as the results of Tuzla Island survey carried out before the beginning of construction. The data regarding ecologic and hydrologic situation caused by the Kerch Strait Bridge construction were processed for the period between 2014 and 2017. An expert evaluation was conducted to determine the damage caused to Ukraine as a result of the construction of the Kerch Bridge, as well as the gathering of evidences upon violations of Ukrainian and international legislation for further consideration in international courts. The conclusion about significant changes in the water regime of the Kerch Strait and the entire Sea of Azov was made.

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Section: Discussionmentioning

confidence: 99%

About Some Environmental Consequences of Kerch Strait Bridge Construction

Ivanovych¹,

Vasylovych²,

Shevchuk³

et al. 2018

HYD

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“…Circulation in the Sea of Azov is mainly wind-driven, while baroclinic forcing is weak (Cherkesov and Shul'ga, 2018). As a result, the sea current field and the level of the Sea of Azov are prone to large synoptic variability caused by intense wind surges in which amplitudes regularly exceed 2 m Fomin, 2015Fomin, , 2017.…”

Section: Study Areamentioning

confidence: 99%

Water exchange between the Sea of Azov and the Black Sea through the Kerch Strait

et al. 2020

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The Sea of Azov is a small, shallow, and freshened sea that receives a large freshwater discharge. Under certain external forcing conditions low-salinity waters from the Sea of Azov flow into the north-eastern part of the Black Sea through the narrow Kerch Strait and form a surface-advected buoyant plume. Water flow in the Kerch Strait also regularly occurs in the opposite direction, which results in the spreading of a bottom-advected plume of saline and dense waters from the Black Sea into the Sea of Azov. In this study we focus on the physical mechanisms that govern water exchange through the Kerch Strait and analyse the dependence of its direction and intensity on external forcing conditions. Analysis of satellite imagery, wind data, and numerical modelling shows that water exchange in the Kerch Strait is governed by a wind-induced barotropic pressure gradient. Water flow through the shallow and narrow Kerch Strait is a one-way process for the majority of the time. Outflow from the Sea of Azov to the Black Sea is induced by moderate and strong north-easterly winds, while flow into the Sea of Azov from the Black Sea occurs during wind relaxation periods. The direction and intensity of water exchange have wind-governed synoptic and seasonal variability, and they do not depend on the rate of river discharge to the Sea of Azov on an intraannual timescale. The analysed data reveal dependencies between wind forcing conditions and spatial characteristics of the buoyant plume formed by the outflow from the Sea of Azov.Published by Copernicus Publications on behalf of the European Geosciences Union.

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“…First, difference in SST between the southern part of the Sea of Azov and the northeastern part of the Black Sea varies from -4 °C in winter to 4 °C in summer (Aleskerovа et al, 2017). On the other hand, diurnal variability of SST in the coastal areas of the Sea of Azov and the Black Sea is also equal to several degrees (Ivanov & Belokopytov, 2011;Chepyzhenko, 2015). This fact prevents formation of distinctive frontal zones between AP and the adjacent sea, especially if AP is formed by inflow from the Sea of Azov during several days, i.e.…”

Section: Identification Of Ap and Bp By Satellite Imagerymentioning

confidence: 99%

Water exchange between the Sea of Azov and the Black Sea through the Kerch Strait

Zavialov¹,

Osadchiev²

2019

Preprint

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Abstract. The Sea of Azov is a small, shallow and freshened sea that receives a large freshwater discharge and, therefore, can be regarded as a large river estuary. Under certain external forcing conditions low-saline waters from the Sea of Azov inflow to the northeastern part of the Black Sea through the narrow Kerch Strait and form a surface-advected buoyant plume. Water flow in the Kerch Strait also regularly occurs in the opposite direction, which results in spreading of a bottom-advected plume of saline and dense waters from the Black Sea in the Sea of Azov. In this study we focus on physical mechanisms that govern water exchange through the Kerch Strait, analyse dependence of its direction and intensity on external forcing conditions. Based on ocean color satellite imagery and wind reanalysis data, we show that water transport from the Sea of Azov to the Black Sea is induced by moderate and strong northeastern winds, while water transport in the opposite direction occurs during wind relaxation periods. Thus, direction and intensity of water exchange through the Kerch Strait has wind-govern synoptic and seasonal variability, and do not show dependence on river discharge rate to the Sea of Azov on intra-annual time scale. Finally, we determined numerical dependencies between discharge rate from the Sea of Azov to the Black Sea and spatial characteristics of the related surface-advected plume in the Black Sea, on the one hand, and wind forcing conditions, on the other hand.

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Strait of Kerch water structure derived from the data of contact measurements and satellite imagery

Cited by 6 publications

References 2 publications

About Some Environmental Consequences of Kerch Strait Bridge Construction

About Some Environmental Consequences of Kerch Strait Bridge Construction

Water exchange between the Sea of Azov and the Black Sea through the Kerch Strait

Water exchange between the Sea of Azov and the Black Sea through the Kerch Strait

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