عنوان مقاله [English]
نویسنده [English]چکیده [English]
The slope of vertical temperature changes rise in height. This state of temperature
rise with height is called temperature inversion.
Ahvaz is considered as one of the 7 major polluted cities in Iran.
Intensification of the phenomenon of inversion leads to atmosphere stability and
congestion of pollutants in the lower layers of the earth’s surface. High density and
compression of cold heavy weather, just under warm weather with lower density,
hinder vertical movements in the atmosphere. Surrounding heights and high rises in
big cities decrease horizontal wind movements and lead to concomitant intensification
of the temperature inversion layer and further pollutant compression inside the lower
layers of the atmosphere.
In this study we considered climate element data for 55 years ago and analysis earth
surface plans and 500 milibar surface in order to evaluation of temperature inversion
effect on Ahvaz pollution processing.
The results of this study in indicate the maximum of intensity of temperature
inversion, weather stability in low pressure areas and high pressure upper air levels
during the hot seasons. This thesis studies the parameters, regional factors and
pollution processes in Ahvaz and attempts to find ways to control and reduce
pollutions. To this aim, it offers solutions and argues that observation and control of
the gases and industry chimneys as well as planning the land use can play crucial roles
in decreasing pollution and moving in the direction of appropriate development.