Three-Dimensional Numerical Modelling Study of Sound Speed in the Persian Gulf

2009 ◽  
Vol 2 (3) ◽  
pp. 232-239 ◽  
Author(s):  
M. Sadrinasab ◽  
K. Kenarkohi
Keyword(s):  
Numerical Modelling ◽  
Persian Gulf ◽  
Sound Speed ◽  
Three Dimensional ◽  
The Persian Gulf ◽  
Modelling Study

scholarly journals The circulation of the Persian Gulf: a numerical study

2005 ◽  
Vol 2 (3) ◽  
pp. 129-164 ◽  
Author(s):  
J. Kämpf ◽  
M. Sadrinasab
Keyword(s):  
United Arab Emirates ◽  
Persian Gulf ◽  
Thermal Stratification ◽  
Numerical Study ◽  
Three Dimensional ◽  
Detailed Comparison ◽  
Mass Properties ◽  
Inverse Estuary ◽  
The Persian Gulf ◽  
Autumn And Winter

Abstract. We employ a three-dimensional hydrodynamic model (COHERENS) to study the circulation and water mass properties of the Persian Gulf, which is a large inverse estuary. Our findings suggest that the Persian Gulf experiences a distinct seasonal cycle in which a Gulf-wide cyclonic overturning circulation establishes in spring and summer, but this disintegrates into mesoscale eddies in autumn and winter. Establishment of the Gulf-wide circulation coincides with establishment of thermal stratification and strengthening of the baroclinic exchange circulation through the Strait of Hormuz. The latter is associated with winter cooling of extreme saline (>45 psu) water in shallow regions along the coast of United Arab Emirates. To validate the model results, we present a detailed comparison with observational evidence.

scholarly journals The circulation of the Persian Gulf: a numerical study

Ocean Science ◽  
2006 ◽  
Vol 2 (1) ◽  
pp. 27-41 ◽  
Author(s):  
J. Kämpf ◽  
M. Sadrinasab
Keyword(s):  
United Arab Emirates ◽  
Persian Gulf ◽  
Thermal Stratification ◽  
Numerical Study ◽  
Three Dimensional ◽  
Mass Properties ◽  
Inverse Estuary ◽  
The Persian Gulf ◽  
Autumn And Winter ◽  
Good Agreement

Abstract. We employ a three-dimensional hydrodynamic model (COHERENS) in a fully prognostic mode to study the circulation and water mass properties of the Persian Gulf – a large inverse estuary. Our findings, which are in good agreement with observational evidence, suggest that the Persian Gulf experiences a distinct seasonal cycle in which a gulf-wide cyclonic overturning circulation establishes in spring and summer, but this disintegrates into mesoscale eddies in autumn and winter. Establishment of the gulf-wide circulation coincides with establishment of thermal stratification and strengthening of the baroclinic exchange circulation through the Strait of Hormuz. Winter cooling of extreme saline (>45) water in shallow regions along the coast of United Arab Emirates is a major driver of this baroclinic circulation.

Three-dimensional numerical modeling of the water exchange between the Persian Gulf and the Gulf of Oman through the Strait of Hormuz

2012 ◽  
Vol 41 (1) ◽  
Author(s):  
Smaeyl Hassanzadeh ◽  
Fahimeh Hosseinibalam ◽  
Ali Rezaei-Latifi
Keyword(s):  
Persian Gulf ◽  
Stokes Equations ◽  
Finite Difference Methods ◽  
Three Dimensional ◽  
Bottom Layer ◽  
Volume Transport ◽  
Navier Stokes ◽  
Near Surface ◽  
Gulf Of Oman ◽  
The Persian Gulf

AbstractIn this study, the Navier-Stokes equations that embrace conservation equations of momentum, volume, heat and salt are solved by using a 3-D numerical model. Then, based on the values obtained, the structure and variability of the outflow/inflow between the Persian Gulf and the Gulf of Oman is investigated. The basic equations are cast in a bottom-following, sigma coordinate system which greatly simplifies the numerical solution. Conservative finite difference methods are used to discretise the mathematical model in space. The model results, which are in agreement with limited direct measurements in the Strait, show a volume transport of deep outflow and a near-surface outflow from the Persian Gulf to the Gulf of Oman through the southern part of the Strait. About 65% of total outflow occurs in the bottom layer (40 m to the bottom) and 35% in the upper layer (from the surface to 40 m deep) during the year. The annual mean of surface inflow from the Gulf of Oman to the Persian Gulf, which occurs within the northern part of the Strait is about 0.2 Sv. The net volume transport annual mean through the Strait into the Persian Gulf is about 0.03 Sv. Strong temperature and density contrasts between bottom and surface layer waters are established in spring and summer. These are more pronounced in the southern part of the Strait. In the northern part of the Strait, the salinity contrast is nearly constant, but in the southern half it varies significantly during the year.

scholarly journals Study and three-dimensional modeling of the Dariyan Formation Electrofacies by using Geostatistics, in one of the Persian Gulf Oilfields

2017 ◽  
Vol 3 (1) ◽  
pp. 25-44
Author(s):  
Elham Asadi Mehmandosti ◽  
Saeed Mirzaee ◽  
Seyed Ali Moallemi ◽  
Bita Arbab ◽  
◽  
...  
Keyword(s):  
Persian Gulf ◽  
Three Dimensional ◽  
Three Dimensional Modeling ◽  
Dimensional Modeling ◽  
The Persian Gulf

A Three-Dimensional Numerical Modelling Study of the Sound Velocity Profiles in the Persian Gulf

2008 ◽  
Author(s):  
Masoud Sadrinasab ◽  
Karim Kenarkoohi
Keyword(s):  
Sound Velocity ◽  
Persian Gulf ◽  
Three Dimensional ◽  
Bottom Layer ◽  
Velocity Profiles ◽  
The North ◽  
Strait Of Hormuz ◽  
Inverse Estuary ◽  
The Persian Gulf ◽  
Autumn And Winter

The Persian Gulf connects to the Indian Ocean via the Strait of Hormuz. In this study, a three-dimensional hydrodynamic model (COHERENS) is employed in a fully prognostic mode to derive sound velocity profiles in the Persian Gulf, an evaporation-driven inverse estuary that is governed by import of surface water from the adjacent ocean and export of saline bottom gulf water through the Strait of Hormuz. During spring and summer, a cyclonic overturning circulation establishes along the full length of the Gulf. During autumn and winter, this circulation breaks up into mesoscale eddies, laterally stirring most of the Gulf’s surface waters. Output of the model shows that sound velocity in the Persian Gulf depends mainly on the temperature in the surface layer whereas the bottom layer as well as the southern part of the Gulf depends on temperature and salinity. Maximum sound velocity occurs during summer in the Persian Gulf which decreases gradually moving from Strait of Hormuz to the north western part of the Gulf. A gradual decrease in sound velocity profiles with depth was commonly observed almost at all stations in the Gulf. However, an exception occurred in Strait of Hormuz during winter. The results of the model are very close to previous observations.

scholarly journals EFFECTS OF DESALINATION ON HYDRODYNAMIC PROCESS IN PERSIAN GULF

2018 ◽  
pp. 3 ◽  
Author(s):  
Wonhyun Lee ◽  
James M. Kaihatu
Keyword(s):  
Persian Gulf ◽  
Three Dimensional ◽  
Field Measurements ◽  
Water Desalination ◽  
Hydrodynamic Process ◽  
Adjacent Area ◽  
Mena Region ◽  
Gulf Region ◽  
The Persian Gulf ◽  
Desalination Plants

Desalination is a significant source of potable water to the Persian Gulf (simply, the Gulf) region. At present, the Gulf countries are the biggest users of seawater desalination with over 50% of the world’s installed capacity. While, as ground- and surface water sources may become scarce or endangered in the Middle East and North Africa (MENA) region, water desalination activities are expected to continue growing in quantity and capacity, particularly in the Gulf region. However, it is not yet clear what the environmental effects are of increased brine discharge to the nearshore and offshore environments, as reliance on mass exchange through the Strait of Hormuz may be insufficient for necessary levels of flushing. To study this, a three-dimensional characterization of the Gulf has been developed using the Delft3D-FLOW hydrodynamic model. This model was used to obtain the hydrodynamics and flow transporting characteristics in the Gulf. In addition to meteorological and oceanographic forcing, the seasonal discharges of four major rivers and numerous desalination plants in the Gulf region were considered to the modeling system. Field measurements from Texas A&M University at Galveston (TAMUG) Microstructure Group in 2013 provided the validation for the model. The maximum 4.21 ppt and 4.32℃ increases in salinity and temperature, respectively, due to the brine discharge of desalination were obtained at the adjacent area to six desalination plants in the Gulf.

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