The Effect of Climatic change on Even Relative Humidity Lines in Iraq

Abstract

Relative humidity is one of the most important elements of the climatic system . It has important effects on different weather activities especially condensation on phenomena on and its relation to water circle nature ,in addition on to its effect on different human activities –so this study cams to show the role of climate change s in change the geographical distribution of relative humidity in fray. Two climatic periods had been Examined on the map , this are : the periods 1941-1971 and 1977-2007. After the conclusions appeared:1-there had been a clear reaction in even relative humidity lines tow ards the northern part of Iraq and the disappearance of many high value even lines from the maps of the months January, April ,July and October. This refers to the clear decrease in relative humidity in Iraq because of climatic change. 2-July Witnessed the highest change in relative humidity in Iraq. This shows the high increase of air dryness during this month which coincided with the increase of temperature degrees'.3-There is an apparent climatic change towards dryness increase in Iraq as a result for the decrease in relative humidity rates which there atens of a dangerous environment al disaster.