التحليل الشمولي للمنظومات الضغطية المرافقة لموجات الحر في العراق

الملخص EN

The study aims to reveal the severe thermal properties of Iraq that lies between latitudes (20 - 5 29- 50-22 37) north and the longitudes (42 38- 45 48) east and (59 3 1 ) north.

This location makes most of the areas in Iraq within the thermal excessiveness in the world which lies between the tropical latitude and latitude north and south.

Moreover, there are many geographical factors that make Iraq one of the areas that suffers severe ecological conditions represented by the hot and cold waves.

The geographical and astronomical location have the greatest effect in that.

Also, the nature of the surface and the height decide the pressure systems, their period and intensity.

The study adopted daily and hourly data collection recorded in the Iraqi metrology for a number of climatic elements for the period 1 94 1 -20 1 3 in eight stations (Musol, Karkok, Baghdad, Rutba, Hay, Diwaniyah, Nasriyah and Basrah which covers almost most of the areas of Iraq.

Our study even tackled the daily climatic maps for the pressure level ( - ) mb to reveal the type of the pressure systems affecting hot and cold waves in Iraq through visiting: http: //vortex.plymoyth.edu, http//www.esrl.noaa.

The study concluded that the sum of hot waves during the study period reached wave within 2644 day.

While the sum of low temperature wave reached 659 wave within 2485 day.

Through the comprehensive analysis of the climatic maps of the pressure level mb, it has been revealed that the Indian seasonal low heat represents the first pressure system that affect the occurrence of the hot waves by 46 .

4% of the Hot waves frequency in Iraq.

The combined low heat, the Indian and the Sudanese, comes next by 25 .

9 %>.

It was revealed through analyzing the maps of the pressure level mb for the days during the days of high temperatures.