علوم غیرزیستی دریا
Iman Khademi; Mohammad Akbarinasab; Abbas Ali Bidokhti; Mohammad reza Khalilabadi
Abstract
Turbulence is a form of movement characterized by an irregular or agitated motion. Turbulent motions are very common in nature. Most flows in the lower atmosphere and in the upper ocean are turbulent. The Turbulence has long had a special attraction for physicists and mathematicians; it has been called ...
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Turbulence is a form of movement characterized by an irregular or agitated motion. Turbulent motions are very common in nature. Most flows in the lower atmosphere and in the upper ocean are turbulent. The Turbulence has long had a special attraction for physicists and mathematicians; it has been called “the last great unsolved problem of classical physics”.In this study, hydrphysical measured data in the southern part of the Strait of Hormuz and with time step of half an hour during the period December 1996 to March 1998, by the University of Miami, and the meteorological station in island of Gheshm are used , then turbulence was simulated by General Ocean Turbulence Model (GOTM( . The results showed that, turbulent kinetic energy (TKE) in different seasons, with different penetration depths were appeared at during the year. In the cold season, the kinetic energy of the turbulent expands from surface to bottom and in the warm seasons because of existing the seasonal thermocline, depth penetration of TKE are limited, and only expands from surface to top of thermocline layer. In this study, investigation of the turbulent Prandtl number (Pr) shows that, effect turbulent viscosity Preference to the production buoyancy in the middle depth.
Maryam Soyuf Jahromi
Abstract
In this current study, it is used an Estuary Lake and Coastal Ocean Model of Centre for water research of University of Western Australia, here after ELCOM, to employ a 3D hydrostatic non-uniform simulation of measured data of in late wintertime, 2005 in Oman sea area. The data was achieved by Global ...
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In this current study, it is used an Estuary Lake and Coastal Ocean Model of Centre for water research of University of Western Australia, here after ELCOM, to employ a 3D hydrostatic non-uniform simulation of measured data of in late wintertime, 2005 in Oman sea area. The data was achieved by Global Temperature and Salinity Profile Programme, GTSPP. In order to that, simulation covers the whole basin of Persian Gulf, Oman Sea and north of Arabian Sea, to make the simulated profiles independent of Persian Gulf outflows and Indian Ocean Inflows. The simulation was run by temperature and salinity differences of Persian Gulf and Oman Sea, river discharges at the end of Persian Gulf, meteorological data of Qeshm Island for 4 months. Temperature results are in good agreements with measured data, while although salinity trend results are acceptable, the simulation is not capable to generate the low salinity water intrusion between 100 to 400 m.