Space monitoring of pollution of the Russian sector of the Azov-Black Sea basin in 2008

Bedritskii, A. I.; Асмус, В. В.; Krovotyntsev, V. A.; Lavrova, Olga; Ostrovskii, Alexander

doi:10.3103/s1068373909030017

Cited by 9 publications

(2 citation statements)

References 2 publications

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“…Under conditions of a wide shelf, moving surface intrusion of desalinated coastal waters can generate intense internal waves [6]. The surface manifestations of internal waves in the Black Sea were studied in [7], which described a new revealed mechanism for the formation of internal waves in tideless seaswave generation by non-stationary front associated with the passage of a cold eddy. One of the causes for the occurrence of internal waves is the presence of vertical wake turbulence; the structure of waves generated under such conditions and their surface manifestations were studied in [8,9].…”

Section: Introductionmentioning

confidence: 99%

Internal Waves on the Black Sea Shelf near the Heracles Peninsula: Modeling and Observation

Ivanov¹,

Shul’ga²,

Bagaev³

et al. 2019

PhO

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The purpose consists in a combined analysis of satellite observations of surface manifestations of internal waves near the Crimean coast and the results of numerical simulation of influence of seasonal thermohaline conditions and the relief on their structure, dynamics and intensification. Methods and Results. Based on the analysis of remote sensing data using high-resolution sensors of the Landsat-8 and Sentinel-2 satellites and the theoretical estimates, the main spatial and temporal characteristics of the internal waves on the Black Sea shelf near the Heracles Peninsula were determined. According to the temperature and salinity data obtained from the satellite measurements and the research vessels measurements in 1951-2008 from the Oceanographic Data Bank of Marine Hydrophysical Institute, the structure of density stratification was investigated, and buoyancy frequency profiles in the shelf and slope area from Yevpatoria to Yalta were obtained. Vertical velocity profiles of internal waves of the first three modes on the shelf were constructed. It was revealed that phase velocity of the internal waves of the first mode in the deep-sea part varied within the range of 2.6-5 m/s, the waves of the second modewithin 1.1-2.3 m/s, and the waves of the third modewithin 0.7-1.4 m/s. The average length of the waves detected from the satellite data was 0.4 km; the longest waves, about 1.1 km, were observed most often between Yevpatoria and Sevastopol, propagating predominantly to the northeast. Within the same train, wave dispersion occurred resulting in the wavelength diminution to 0.1-0.3 km. Conclusions. The stated assumption on the cause of generation of intense internal waves conditioned by the interaction of the Rim Current jet with the shelf edge was confirmed by the results of numerical calculations. Spatial and temporal characteristics of the internal waves, the integrated data of remote sensing and the modeling results make it possible to estimate vertical exchange at the shelf and to determine the depth of the maximum Brunt-Väisälä frequency.

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Section: Introductionmentioning

confidence: 99%

Internal Waves on the Black Sea Shelf near the Heracles Peninsula: Modeling and Observation

Ivanov¹,

Shul’ga²,

Bagaev³

et al. 2019

PhO

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“…After the development of satellite systems with sufficiently high spatial resolution and possibility of providing daily data for any area of observation, it has become possible to develop technologies for a marine environment monitoring. Operational satellite monitoring makes it possible to map the dynamic characteristics and parameters of water pollution, to determine the types and scales of pollution, to track its migration routes, to observe the mechanisms of water self-purification (Bedritskii et al, 2009). Sometimes it is possible to obtain some quantitative characteristics of pollution (e.g., the area of pollution and its change rate).…”

Section: Introductionmentioning

confidence: 99%

Reconstruction of a passive tracer boundary source in an open water area

Sorokin

Sheloput

2019

Ecol. Mont

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Marine pollution is one of the most serious environmental problems nowadays. Identification of sources of contaminants is among the main objectives of environmental researchers. In such problems pollutants are sometimes considered as passive tracers. In this paper, a problem of detecting and localization of the passive tracer boundary sources in an open water area is considered. A mathematical model of the sea surface pollution spread based on the system of linear unsteady convection-diffusion-reaction equations is used. The inverse problem of restoring the pollution sources on the domain boundary is formulated under the consideration that the pollution concentration data are given. The method based on the theory of adjoint equations and optimal control is used. The iterative algorithm for the solution of the problem is proposed. The article presents the results of the numerical experiment on application of the proposed algorithm to the problem of recovering pollution sources on the Black Sea coastline.

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Satellite Instrumentation and Technique for Oil Pollution Monitoring of the Seas

Kostianoy

Lavrova

2022

Springer Water

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Space monitoring of pollution of the Russian sector of the Azov-Black Sea basin in 2008

Cited by 9 publications

References 2 publications

Internal Waves on the Black Sea Shelf near the Heracles Peninsula: Modeling and Observation

Internal Waves on the Black Sea Shelf near the Heracles Peninsula: Modeling and Observation

Reconstruction of a passive tracer boundary source in an open water area

Satellite Instrumentation and Technique for Oil Pollution Monitoring of the Seas

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