The dominant pressure systems affecting the weather of Saudi Arabia

الملخص EN

The synoptic circulation over the Kingdom of Saudi Arabia (KSA) is complicated and frequently is due to the effect of some pressure systems and variables.

In this work we will use the global data to illustrate the pattern and oscillation of the main pressure systems affecting the weather and climate of KSA.

The horizontal average distributions of some meteorological elements are presented in maps for the seasons of the year.

The winter is represented by January, spring by April, summer by July and finally autumn by October.

We found that the climatological pressure systems that dominated in our area in winter are the Siberian high, the red sea trough, the subtropical high and the westerly trough.

While the pressure systems that dominated on our area in summer are the Indian monsoon low, the thermal low, the Siberian high and the subtropical high.