Hydrophysical and hydrochemical characteristics of the sea areas adjacent to the estuaries of small rivers of the Russian coast of the Black Sea

Zavialov, Peter; Makkaveev, P. N.; Коновалов, Б. В.; Osadchiev, Alexander; Khlebopashev, P. V.; Pelevin, Vadim; Grabovskiy, A. B.; Izhitskiy, Alexander; Goncharenko, I. V.; Soloviev, Dmitry M.; Polukhin, A. A.

doi:10.1134/s0001437014030151

Cited by 44 publications

(28 citation statements)

References 2 publications

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“…Second, circulation of adjacent sea limitedly affects spreading dynamics of a small plume, because density gradient hinders upward momentum flux from subjacent sea to a small plume [44]. It results in wind-driven dynamics of small plumes, which is characterized by very energetic temporal variability of their positions, shapes, and areas [45][46][47]. Spreading pattern of a small plume can dramatically change during several hours that is regularly registered by in situ and satellite data.…”

Section: Structure Of Small River Plumesmentioning

confidence: 99%

“…We developed a Lagrangian model called Surface-Trapped River Plume Evolution (STRiPE) for simulating the spreading of small river plumes and the associated transport of river-borne suspended sediments [45,48]. STRiPE represents a river plume as a set of Lagrangian parcels or homogeneous water columns extending from the surface down to the boundary between the plume and the subjacent sea, while their horizontal sizes are presumed to be relatively small.…”

Section: Lagrangian Modeling Of Small River Plumesmentioning

confidence: 99%

“…As a result, surface salinity and turbidity show good correlation within the river plumes. Thus, optical satellite imagery can be effectively used to detect river plumes of RCBS [45,46]. Both in situ and satellite measurements revealed high spatial and temporal variability of the river plumes of RCBS.…”

Section: Dynamics Of Small River Plumesmentioning

confidence: 99%

“…Both in situ and satellite measurements revealed high spatial and temporal variability of the river plumes of RCBS. Their areas, positions, and shapes can significantly change during several hours in response to variations of river discharge and local wind forcing [42,43,45].…”

Section: Dynamics Of Small River Plumesmentioning

confidence: 99%

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Structure and Dynamics of Plumes Generated by Small Rivers

Osadchiev¹,

Zavialov²

2020

Estuaries and Coastal Zones - Dynamics and Response to Environmental Changes

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The total share of small rivers in the influxes of fluvial water and suspended matter to the world ocean is estimated at between 25 and 40%. On a regional scale, this contribution can be even more significant for many coastal regions. In this chapter, we show that dynamics of small river plumes is significantly different from that of plumes generated by large rivers. Spatial structure of small plumes is generally characterized by sharper horizontal and vertical gradients. As a result, small plumes exhibit more energetic temporal variability in response to external forcing. In this chapter, we address several dynamical features typical for small plumes. We describe and discuss the response of small plumes to wind forcing and river discharge variability, the interaction between neighboring small plumes, and the generation of high-frequency internal waves in coastal ocean by small rivers. We also substantiate the Lagrangian approach to numerical modeling of small river plumes.

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Section: Structure Of Small River Plumesmentioning

confidence: 99%

Section: Lagrangian Modeling Of Small River Plumesmentioning

confidence: 99%

Section: Dynamics Of Small River Plumesmentioning

confidence: 99%

Section: Dynamics Of Small River Plumesmentioning

confidence: 99%

See 2 more Smart Citations

Structure and Dynamics of Plumes Generated by Small Rivers

Osadchiev¹,

Zavialov²

2020

Estuaries and Coastal Zones - Dynamics and Response to Environmental Changes

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“…Apparently, the latter is due to the Kudepsta water catch peculiarity, its smaller runoff compared with the Mzymta, as well as to the isolated location from the construction of Olympic facilities. The highest concentrations of AHC in this area are found in the Bikhta River waters (32-675 μg/L, 127 μg/L on average, n = 7), flowing through the waste landfill, which caused its severe pollution by organic (15 times higher than the background) and biogenic substances (by silicates -18 times, by ammonia nitrogen -40 times higher than the background) [17]. When the river waters were diluted by the sea ones, the AHC content gradually decreased.…”

Section: Content Of Organic Compounds In the Surface Layer Of The Botmentioning

confidence: 99%

Hydrocarbons in the Suspended Matter and the Bottom Sediments in Different Regions of the Black Sea Russian Sector

Nemirovskaya¹,

Onegina²,

Коновалов³

2017

PhO

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Content and composition of hydrocarbons (mainly the aliphatic ones) in the suspended matter and the bottom sediments in the Gelendzhik Bay, the Big Sochi water area, the Feodosiya Bay and the Black Sea central part are defined and compared with the total organic carbon and chlorophyll a contents. It is shown that the aliphatic hydrocarbon concentrations exceeding the background ones are found only in the coastal zone. Advancing to the pelagic zone is accompanied by sharp decrease of their concentrations.Petroleum and pyrogenic hydrocarbons are mainly manifested in the polycyclic aromatic hydrocarbons composition. Influence of construction of the Olympic facilities upon distribution of hydrocarbons in the Big Sochi water area was of short duration, and already by 2015 the aliphatic hydrocarbons concentration decreased, on the average, up to 24 µg/l in the surface waters, and up to 18 µg/g -in the bottom sediments.Accumulation of hydrocarbons took place in bottom sediments, where their concentrations exceeded the background ones in terms of dry weight. In the Gelendzhik Bay, their content reached 252 μg/g, and in the composition of organic carbon (Corg) > 1 %, which may indicate the contamination of sediments with oil products. In the Feodosiya Bay their part in the composition of Corg did not exceed 0.73 % and was 0.35 % on average.Natural alkanes dominated in the composition of aliphatic hydrocarbons. The bottom sediments are characterized by the predominance of odd high-molecular terrigenous alkanes.The content of polycyclic aromatic hydrocarbons in the studied sediments was rather low: up to 31 ng/g in the Gelendzhik Bay, up to 348 ng/g in the Feodosiya Bay. These concentrations according to the EPA classification are considered background, or minor petroleum hydrocarbons increase the level of aliphatic hydrocarbons in water and sediments, thus creating a modern hydrocarbon background.

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Natural and Anthropogenic Hydrocarbons in Seawater and Bottom Sediments of the Black Sea

Nemirovskaya

2020

The Handbook of Environmental Chemistry

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Hydrophysical and hydrochemical characteristics of the sea areas adjacent to the estuaries of small rivers of the Russian coast of the Black Sea

Cited by 44 publications

References 2 publications

Structure and Dynamics of Plumes Generated by Small Rivers

Structure and Dynamics of Plumes Generated by Small Rivers

Hydrocarbons in the Suspended Matter and the Bottom Sediments in Different Regions of the Black Sea Russian Sector

Natural and Anthropogenic Hydrocarbons in Seawater and Bottom Sediments of the Black Sea

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