Conjunction of 2D and 3D modified flow solvers for simulating spatio-temporal wind induced hydrodynamics in the Caspian Sea

Zounemat‐Kermani, Mohammad; Sabbagh-Yazdi, Saeed-Reza

doi:10.1007/s12601-010-0010-7

Cited by 5 publications

(2 citation statements)

References 31 publications

(31 reference statements)

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“…The results obtained in this research were agreed the results of other studies in different sea areas (Tuzhilkin and Kosarev, 2005;Zaker et al, 2007;Zavialov et al, 2022). Evaluations of salinity and temperature recorded data showed that the thermohaline structure has vertical and horizontal = ) (Kosarev, 1990;Kosarev and Yablonskaya, 1994;Tuzhilkin et al, 1997;Ibraev et al, 1998;Ibrayev, 2001;Ibrayev et al, 2001;Tuzhilkin and Kosarev, 2004;Nasimi and Ghiassi, 2006;Zounematkermani and Sabbaghyazdi, 2010;Kitazawa and Yang, 2012;Cutroneo et al, 2017;Jamshidi, 2017;Medvedev et al, 2020). The stability frequency is also called stratification frequency.…”

Section: Data Availability Statementsupporting

confidence: 90%

Flow measurement in the southern coast of the Caspian Sea

Jamshidi

2024

Front. Mar. Sci.

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Oceanographic monitoring was conducted in the southern basin of the Caspian Sea to evaluate the physical structure of seawater and sea currents. This monitoring aimed to gather data and analyze the characteristics of the seawater, including temperature, salinity, density, and other relevant parameters. Additionally, the monitoring also focused on studying the patterns and dynamics of sea currents in the region. The collected data and analysis from this monitoring period provided valuable insights into the oceanographic conditions of the southern basin of the Caspian Sea. During storm events, a high level of correlation between the current and wind data was observed in the southern basin of the Caspian Sea during the 2017-2018 monitoring period. The measured current data indicated that the predominant directions were north (N) and northwest (NW). It was observed that strong gusts predominantly originated from the north (N) and northwest (NW) directions. Additionally, a smaller portion of the strong gusts was observed to come from the South-Southeast (S-SE) direction. These findings indicate that the prevailing wind patterns during the monitoring period were primarily from the north and northwest, with a lesser contribution from the South-Southeast direction. The current profiles observed during the monitoring period in the southern basin of the Caspian Sea were primarily influenced by the general circulation pattern of the region. This circulation pattern played a significant role in shaping the current profiles observed during the measurements. In terms of the surface current speed, the maximum recorded value was approximately 200 cm/s, which occurred in January. This indicates that there were instances of relatively high-speed currents in the southern basin of the Caspian Sea during that time. The evaluation of inter-annual variability in vertical structure and seawater temperature profiles during the monitoring period confirmed the presence of seasonal stratification in the water column of the southern basin of the Caspian Sea. This stratification was observed to consist of different layers, including the surface mixed layer, thermocline, and deep-water layers. The formation of these layers is indicative of the seasonal variations in temperature and density within the water column. The vertical changes in the water’s physical parameters during the monitoring period revealed the formation of stratification in the southern basin of the Caspian Sea. In March, it was observed that the water temperature decreased from 11.5°C at the surface to 8.5°C at a depth of 100 m, indicating the presence of a temperature gradient. As the monitoring progressed into May, the stratification became stronger, with the surface water temperature reaching around 23°C. By August, the surface layer of the sea water experienced a significant increase in temperature, reaching 29°C. These observations highlight the development of stratification and the seasonal variations in water temperature during the monitoring period in spring and summer seasons. The water temperature beneath the thermocline layer, specifically at a depth of 100 meters, was recorded to be around 8-8.5 oC. Additionally, the water salinity in the water column exhibited fluctuations between 12-12.5 (psu). Monitoring and understanding physical properties variations are crucial for assessing the oceanographic conditions and their potential impact on marine ecosystems in the southern basin of the Caspian Sea.

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Section: Data Availability Statementsupporting

confidence: 90%

Flow measurement in the southern coast of the Caspian Sea

Jamshidi

2024

Front. Mar. Sci.

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“…Ibrayev [17] developed a three-dimensional primitive equation numerical model (MESH) in spherical coordinates system with vertical array Z for simulation of water circulation in the CS. A conjunctive numerical model consisting of a 2D depth average model and a 3D pseudo compressible model in the Cartesian coordinate system was developed by Zounemat Kermani and Sabbagh Yazdi to simulate wind driven current in the CS [18]. Kitazawa and Yang (2012) simulated water circulation in the CS by means of developmet of a three dimensional numerical simulation based on a hydrodynamic ocean model (MEC) in the Cartesian coordinate system [19].…”

Section: Introductionmentioning

confidence: 99%

Numerical Simulation of the Wind-Induced Current in the Caspian Sea

Mofidi

Hesari

2018

ijcoe

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A three-dimensional primitive equation model has been developed to study wind-driven currents in the Caspian Sea (CS). The equations were solved in the spherical coordinate system with a vertical array of pressure-sigma using a finite difference Method on a staggered modified Arakawa c grid. Simulations showed that there is an anticyclonic eddy over the deep water of South Caspian Basin (SCB), which extended from surface to subsurface and persist throughout the year. The model successfully produced the coastal current along the eastern coast of the Middle Caspian Basin (MCB) with a prevailing southward component, resulting in upwelling on these coasts to compensate the surface drift. The results indicate that the bottom topography has a key role in steering currents and generated a divergence in the surface Ekman layer which balanced by convergence in the frictional bottom Ekman layer in deepest areas of the CS.

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Numerical simulation of sedimentation process in reservoirs and development of a non-coupled algorithm to improve long-term modeling

Khorrami

Banihashemi

2019

International Journal of Sediment Research

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Conjunction of 2D and 3D modified flow solvers for simulating spatio-temporal wind induced hydrodynamics in the Caspian Sea

Cited by 5 publications

References 31 publications

Flow measurement in the southern coast of the Caspian Sea

Flow measurement in the southern coast of the Caspian Sea

Numerical Simulation of the Wind-Induced Current in the Caspian Sea

Numerical simulation of sedimentation process in reservoirs and development of a non-coupled algorithm to improve long-term modeling

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