أثر التذبذب المناخي على تباين المناطق الجافة في العراق

الملخص EN

This study is concerned with both total or macroclimate and applied or micro climate to identify the various distances of the dry areas in Iraq, relying on three climatic cycles, the first (1970-1980), the second (1990-2000) and the third (2008-2018) for nine climate monitoring stations and to explain the cause of this phenomenon, Determining how many days the phenomenon has taken is based on the analysis of surface maps for monitoring (0, 12, 0, 00) available on the website https: //www, ers, noaa, gon' It was found from the application of the equation that the climate of Iraq was characterized as a semi-arid climate for three climatic cycles, However, the fluctuation in the amounts of rain and temperature is based on the variation in the nature of the climate of the different Iraqi areas, The central and southern climates were semi-arid during the first and second climatic cycle, and dry in the third cycle, The equation application in the stations under study results in more clearly identifiable varieties in the climate fluctuations in the dry areas; the analysis of surface monitoring maps revealed less days witnessed rising air in the third cycle by (14, 52% ) than the total number of days of the rainy season, while the percentage of the other several days was (40, 60% ) at the second session; this was the reason behind the shallowness of the depressions, which resulted in decreasing rain and rainy days.