مدل ساز ي اثرهاي آب و هوايي كم فشارهاي حرارتي در منطقه جنب حاره

Simulating the Climatic Effects of Heat Low in Subtropical Region A Case Study: Pakistan Heat Low and its Effects on Iran

During summer in south Asia a heat low which is inclined to the west is formed . This heat low has a curved axis in its vertical axis in normal condition. This curved axis is towards southeast and the rainfalls resulting from it are inclined more to the east toward Indian peninsula. But when (at the time) the curve is reduced , its effect in the southeast part of Iran is appeared in the shape of convection shower. This sever convection in warm season has more effects upon the region and when draught is dominant throughout the area causes filling the ponds and rivers, and provides water for irrigating farms. For this reason , these rains are vital for the southeast area of Iran. In this article the attempt is made to simulate the penetration of Pakistan heat low through the region and its influence on producing convection.