Content of Organic Compounds and Trace Metals in Bottom Se-Diments of the Balaklava Bay (The Black Sea)

Tikhonova, E. A.; Kotelyanets, E. A.; Gurov, K. I.

doi:10.22449/2413-5577-2019-3-82-88

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“…For the second series of numerical experiments, a combination of three fractions, the spatial distribution of which is based on the results of the Marine Hydrophysical Institute monitoring observations carried out in 2005, 2015, 2018 [4][5][6][7]22] was used. The granulometric composition of bottom sediments was specified as a mixture of three components (fine gravel and coarse-grained sand, medium-grained sand, finegrained sand) distributed with different ratios of volumetric concentrations in different parts of the studied water area.…”

Section: F I G 1 Location Of the Research Area And The Bottom Topography Of The Balaklava Baymentioning

confidence: 99%

“…The first modern information related to the physical and chemical properties of bottom sediments, composition and quantitative characteristics of macrozoobenthos [3]. At present, much attention is paid to the pollution of the bay bottom sediments with organic substances [4,5] and heavy metals [6,7]. In works [5,7] it is noted that the fractional composition in the surface layer of bottom sediments has changed, primarily due to an increase in the proportion of fine-grained material.…”

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Mathematical Modeling the Dynamics of the Bottom Sediments Granulometric Composition in the Balaklava Bay Affected by the Wind Waves

Gurov¹,

Fomin²

2021

PhO

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Purpose. Based on the mathematical modeling methods, influence of the wind waves on redistribution of the sand fractions in the semi-closed estuary-type water area is estimated using the Balaklava Bay as an example. Methods and Results. A two-dimensional version of the XBeach model with a constant grid spacing 10 m was used. The characteristics of wind waves were preset using the JONSWAP spectrum. The calculations were carried out for a storm event lasting about 12 hours once a year. The in-situ data on the particle size distribution in the bottom sediments resulted from the monitoring observations in the Balaklava Bay region was used in the numerical experiments. Conclusions. The results of modeling showed that the basic determining factors regulating the sediments movement were the depth and the bottom slope. It is noted that changing of the bottom inclination angle between the isobaths 6–7 and 7–8 m leads to deposition of the large and medium fractions, and in the area between the isobaths 9–10 and 10–12 m – to accumulation of fine sand. It was revealed that in the Balaklava Bay water area, the main redistribution of sand material caused by the storm waves took place within the southern basin, as well as at the bay exit in the coastal zone of the Megalo-Yalo Gulf. This is primarily determined by the features of the Balaklava Bay coast orography, namely, the knee-shaped narrowness separating the northern and southern basins. Nevertheless, in the isolated northern part of the Balaklava Bay being affected by the storm waves, insignificant dynamics of sand material was observed. The fractions of bottom sediments are redistributed from the western coast to the central part of the basin and to the eastern coast of the bay.

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Section: F I G 1 Location Of the Research Area And The Bottom Topography Of The Balaklava Baymentioning

confidence: 99%

mentioning

confidence: 99%

Mathematical Modeling the Dynamics of the Bottom Sediments Granulometric Composition in the Balaklava Bay Affected by the Wind Waves

Gurov¹,

Fomin²

2021

PhO

View full text Add to dashboard Cite

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Content of Organic Compounds and Trace Metals in Bottom Se-Diments of the Balaklava Bay (The Black Sea)

Cited by 1 publication

References 0 publications

Mathematical Modeling the Dynamics of the Bottom Sediments Granulometric Composition in the Balaklava Bay Affected by the Wind Waves

Mathematical Modeling the Dynamics of the Bottom Sediments Granulometric Composition in the Balaklava Bay Affected by the Wind Waves

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