Using spatial interpolation to detect changes in temperature and precipitation ranges of the Jazira region in Iraq

Abstract

Through the research, it was found that the thermal ranges varied in their spatial coverage percentage. In the first thermal range (19.1-20 m), an area percentage of (14.4)% was recorded during the first period only, and this means that the temperature has started to rise, which led to the disappearance of this range during The second temperature range, which ranged between (20.1-21) m, recorded an area ratio of (56.2, 39.5, 3.8, 3.6)%, respectively. The third, which ranged between (21.1-22) m, with an area percentage of (29.4, 54.8, 67.5, and 36.6)%, respectively. The fourth temperature range was recorded, which ranged between (22.1-23), with an area percentage of (5.7, 26.6, 49.2). % for the second, third, and fourth periods, respectively, and this shows the increase in the area of this range and its expansion to the north. As for the fifth thermal range (23.1-24) m, the percentage of an area amounted to (2, 10.7)% during the third and fourth periods, and this range is the highest of the five temperature ranges, and its increase significantly During the fourth period means increased dryness.

As for the rainy bands, they also varied in their spatial coverage percentage. In the first rainy band (less than 100 mm), an area percentage of (1.3, 4.2, 0.9)% was recorded during the first, third, and fourth period, respectively, and its appearance disappeared in the second period. The second rainy season, which ranged between (101-200 mm), recorded an area percentage of (23.8, 23.7, 46.7, 45.7)%, respectively. 48.3, 37.8)%, respectively. As for the fourth rainy range, which ranged between (301-400 mm), its area was (40.6, 39.5, 0.8, 15.6)%, respectively. The fifth (more than 400 mm) area percentage amounted to (1, 4.1)% during the first and second periods, while it disappeared during the third and fourth periods, which indicates the dryness of the island region.