scholarly journals Thermocline Formation in the Persian Gulf

2020 ◽  
Vol 1 (2) ◽  
Author(s):  
Seyed Majid Mosaddad
Keyword(s):  
Persian Gulf ◽  
Water Exchange ◽  
Theoretical Study ◽  
Ocean Model ◽  
Solar Heating ◽  
Surface Mixed Layer ◽  
Climatic Parameters ◽  
Gulf Of Oman ◽  
Strait Of Hormuz ◽  
The Persian Gulf

Persian Gulf (PG) is a semi-enclosed water basin that is connected to the Gulf of Oman through the Strait of Hormuz. There are different forcing and climatic parameters influencing the thermocline development in the PG from winter to summer. These factors include tide, river inflow, solar radiation, evaporation, northwestern wind, and water exchange with the Gulf of Oman. In fact, the thermocline, which is often observed in the oceans and open seas, can be considered as a seasonal phenomenon in the ocean.  In the present study, it is studied theoretically; and compared with the results of the Princeton Ocean Model (POM) in the PG. During winter to summer, solar heating created an intense thermocline that decoupled the surface mixed layer from the interior water. The data are reviewed as the measurements collected in 1992 and recent modeling results. Overall, through a theoretical study, it is concluded that thermocline formation is a seasonal phenomenon in the PG.

scholarly journals NUMERICAL SIMULATION OF TROPICAL CYCLONES AND STORM SURGES IN THE ARABIAN SEA

2018 ◽  
pp. 11
Author(s):  
Mohsen Soltanpour ◽  
Zahra Ranji ◽  
Tomoyo Shibayama ◽  
Sarmad Ghader ◽  
Shinsaku Nishizaki
Keyword(s):  
Tropical Cyclones ◽  
Persian Gulf ◽  
Arabian Sea ◽  
Storm Surges ◽  
Ocean Model ◽  
Gulf Of Oman ◽  
The Persian Gulf ◽  
The Impact ◽  
Landfall Location ◽  
Good Agreement

Winds, waves and storm surges of Gonu and Ashobaa, as two recent cyclones in the Arabian Sea and Gulf of Oman, are simulated by a system of WRF-FVCOM-SWAN. The employed models are separately calibrated using the available data. Surges are found to be highly dependent on coastal geometry and landfall location, rather than the storm intensity. Comparisons at different stations reveal that the results of models are in a good agreement with measured parameters. Negative surges are also observed in the enclosed basins of the Persian Gulf and Red Sea. The calibrated atmosphere-wave-ocean model can be utilized for the prediction of extreme events, expected to increase in future due to the impact of the climate change.

On a new species of the shrimp genus Athanas Leach, 1814 (Crustacea, Decapoda, Alpheidae) from Iran

Zootaxa ◽  
2010 ◽  
Vol 2372 (1) ◽  
pp. 53-60 ◽  
Author(s):  
ARTHUR ANKER ◽  
REZA NADERLOO ◽  
IVAN MARIN
Keyword(s):  
New Species ◽  
Persian Gulf ◽  
Gulf Of Oman ◽  
Strait Of Hormuz ◽  
The Persian Gulf ◽  
Major Cheliped ◽  
A New Species

A new species of Athanas is described from the Iranian side of the Strait of Hormuz connecting the Persian Gulf with the Gulf of Oman. Athanas iranicus n. sp. is the only species in the genus characterised by the presence of dense setal brushes on the dorsolateral margin of the carpus and on most of the palm of the major and minor chelipeds; the presence of an additional setal brush on the dactylus of the major cheliped; a frontal margin with an untypically short rostrum and short, triangular extra-corneal teeth; and mostly concealed eyestalks.

A Modeling Study of Circulation and Eddies in the Persian Gulf

2010 ◽  
Vol 40 (9) ◽  
pp. 2122-2134 ◽  
Author(s):  
Prasad G. Thoppil ◽  
Patrick J. Hogan
Keyword(s):  
Persian Gulf ◽  
Spatial Scales ◽  
Baroclinic Instability ◽  
Mesoscale Eddies ◽  
Ocean Model ◽  
Coastal Current ◽  
Basin Scale ◽  
Strait Of Hormuz ◽  
Moderate Resolution Imaging Spectroradiometer ◽  
The Persian Gulf

Abstract The circulation and mesoscale eddies in the Persian Gulf are investigated using results from a high-resolution (∼1 km) Hybrid Coordinate Ocean Model (HYCOM). The circulation in the Persian Gulf is composed of two spatial scales: basin scale and mesoscale. The progression of a cyclonic circulation cell dominates the basin-scale circulation in the eastern half of the gulf (52°–55°E) during March–July. This is primarily the consequence of density-driven outflow–inflow through the Strait of Hormuz and strong stratification. A northwestward-flowing Iranian Coastal Current (ICC; 30–40 cm s−1) between the Strait of Hormuz and north of Qatar (∼52°E) forms the northern flank of the cell. Between July and August the ICC becomes unstable because of the baroclinic instability mechanism by releasing the potential energy stored in the cross-shelf density gradient. As a result, the meanders in the ICC evolve into a series of mesoscale eddies, which is denoted as the Iranian coastal eddies (ICE). The ICE have a diameter of about 115–130 km and extend vertically over most of the water column. Three cyclonic eddies produced by the model during August–September 2005 compared quite well with the Moderate Resolution Imaging Spectroradiometer (MODIS) SST and chlorophyll-a observations. The remnants of ICE are seen until November, after which they dissipate as the winter cooling causes the thermocline to collapse.

On the Nature of the Seas

2020 ◽  
pp. 61-62
Author(s):  
Domenico Agostini ◽  
Samuel Thrope
Keyword(s):  
Black Sea ◽  
Persian Gulf ◽  
Caspian Sea ◽  
The Black Sea ◽  
The Caspian Sea ◽  
Gulf Of Oman ◽  
Strait Of Hormuz ◽  
The Persian Gulf ◽  
Bodies Of Water

Chapter 10 presents a list of seas. This list partly derives from the mythic geography of the Avesta and partly is based on historical bodies of water, including the Persian Gulf, the Caspian Sea, the Black Sea, and the Strait of Hormuz or Gulf of Oman.

Tide-surge interaction in the Persian Gulf, Strait of Hormuz and the Gulf of Oman

Weather ◽  
2016 ◽  
Vol 71 (10) ◽  
pp. 256-261 ◽  
Author(s):  
Mohammad Reza Khalilabadi
Keyword(s):  
Persian Gulf ◽  
Gulf Of Oman ◽  
Strait Of Hormuz ◽  
The Persian Gulf

scholarly journals Mesoscale eddies and submesoscale structures of Persian Gulf Water off the Omani coast in spring 2011

Ocean Science ◽  
2016 ◽  
Vol 12 (3) ◽  
pp. 687-701 ◽  
Author(s):  
Pierre L'Hégaret ◽  
Xavier Carton ◽  
Stephanie Louazel ◽  
Guillaume Boutin
Keyword(s):  
Persian Gulf ◽  
Arabian Sea ◽  
Cold Water ◽  
Mesoscale Eddies ◽  
High Salinity Water ◽  
Strait Of Hormuz ◽  
Persian Gulf Water ◽  
Salinity Water ◽  
The Persian Gulf ◽  
Sea Of Oman

Abstract. The Persian Gulf produces high-salinity water (Persian Gulf Water, PGW hereafter), which flows into the Sea of Oman via the Strait of Hormuz. Beyond the Strait of Hormuz, the PGW cascades down the continental slope and spreads in the Sea of Oman under the influence of the energetic mesoscale eddies. The PGW outflow has different thermohaline characteristics and pathways, depending on the season. In spring 2011, the Phys-Indien experiment was carried out in the Arabian Sea and in the Sea of Oman. The Phys-Indien 2011 measurements, as well as satellite observations, are used here to characterize the circulation induced by the eddy field and its impact on the PGW pathway and evolution. During the spring intermonsoon, an anticyclonic eddy is often observed at the mouth of the Sea of Oman. It creates a front between the eastern and western parts of the basin. This structure was observed in 2011 during the Phys-Indien experiment. Two energetic eddies were also present along the southern Omani coast in the Arabian Sea. At their peripheries, ribbons of freshwater and cold water were found due to the stirring created by the eddies. The PGW characteristics are strongly influenced by these eddies. In the western Sea of Oman, in 2011, the PGW was fragmented into filaments and submesoscale eddies. It also recirculated locally, thus creating salty layers with different densities. In the Arabian Sea, a highly saline submesoscale lens was recorded offshore. Its characteristics are analyzed here and possible origins are proposed. The recurrence of such lenses in the Arabian Sea is also briefly examined.

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