Maryam Khoshkhou - Department of Physics, Research center Razi Rey (Tehran),Iran
Afsaneh Karamipoor - Master of Science, Teacher, Shiraz,Iran

Persian Gulf is one of the most important bodies of water which has a very difficult and overwhelming dominant ecosystem due to severe environmental conditions such as temperature and salinity.Gheshm island has a fundamental role in the diversity of biological behavior as well as available dispersion.The equation of condition of sea , the key gnomon of Air and Water and Quantity are the observation in International charts, and the coefficient of equation of sea is the important parameter that limit the circulation of the ocean.At the beginning of hot days , the weather change in column of water, Thermocline layer has appeared. The existence of Thermocline layer in Summer in effect of hot water capacity and penetration hot water in Winter into the lower layers.Ocean areas are bynatuie have a Double-diffusion converction, because of the existing salinity and temperature differences in variaus depths. As part of the ocean has a temperature inversion (temperature increasing with depth). In the Island, there are two procedures of dual diffiusion convection; including finger and diffusive regime, which have a conventional role in creating temperature inversion. Effects of bottom topography and coastline drastic changes influence the double diffusive convection.Environment's action like Mangro Jungle (Hara) and the result of tide near the Hormoz Strait the flow of sweet waters from the Ocean due to Salinity and rich materials have been analyzed.The time series of Air and Water could be analyzed by the relation of each other. And the spread of the time series and Richardson Numbers in layers of water and the result of Regrasion .At the beginning of hot days, due to the temperature change in column of water, Thermocline layer appears. The existence of Thermocline layer in summer is the result of hot water capacity and lock of penetration of hot water in winter into the lower layers.

Gheshm island, Double-diffusion convection, thermocline, Relaibility