مجلة الاربعين المحكمة
Dust storms are considered as one of the important weather phenomena that have harmful and negative effects on the environment in various aspects. They arise and occur frequently depending on multiple topographical and climatic factors. In this study, data from the Iraqi Meteorological organisation and Seismic Monitoring IMOS recorded at the Karbala metrological Station was used to test and examine the statistical behaviour of dust storms for the period from 1980-2022 by dividing those dust storms into severe, moderate, and light depending on the extent of visibility and the period the dust storm lasted. Studies compared the frequency of dust storms with the weather conditions, such as wind, rainfall and max and min. air temperature. The results showed that there was a decrease in the tendency for dust storms frequency by 9%, accompanied by a decrease in the recorded wind speeds to about 2% within the average speed of about 2.7m/s. As for rain alone, there was also a decrease in its trend’s quantities by about 0.28 within the annual average for four decades, which reached 94 millimetres. On the other hand, max. and min. temperature records increased about 1C0, but this increase is part of global warming and doesn’t affect dust storm frequency rate alone, but can be worked with other atmospheric elements. From the current results, we concluded that the frequency of dust storms in Karbala province is affected by the boundaries of the local governorate, and there are other factors which play a role in the statistical behaviour of the frequency in the