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Titre : Morphometric analysis of the al-Auqood, al-Shakrea, and al-Samtheai stream basins in Iraq using geomatics technology

Irak’taki al-Auqood, al-Shakrea ve al-Samtheai akarsu havzalarının geomatik teknolojisi kullanılarak morfometrik analizi

Auteur : AHMED AHMED Taha Saadi

Université de soutenance : Karabük Üniversitesi

Grade : Master Thesis Geography 2022

Résumé partiel
This study was prepared to determine geomorphological features by using morphometric analysis methods. The selected study area is considered one of the dry areas in the western plateau of Iraq. There are valleys that represent water basins that supply the Euphrates River, in which these basins are poured, with water coming from rainfall. The region’s area reaches 303.38 km2, and it consists of three basins located in Anbar Governorate (Al-Jazirah Desert), such as Al-Shakrea stream basin, the largest in area, with an area of 132.88 km2, Al-Auqood Stream basin, which has less area of 124.13 km2, and Al-Samtheai which is the smallest, with an area of 46.37 km2. All of the basins are poured into the Euphrates River. Mathematically, the study area is between two latitudes 34o 29’ 42" N and 34o 45’ 01" N and between longitudes of 41o 31’ 18" E and 41o 46’ 29" E. The surface of the region consists of low terrain land, where the percentage of terrain in the basins of the study area is as follows : 43.79% in the Al-Shakrea Stream basin which is the biggest, 40.91% in the Al-Auqood stream basin, which is the medium size, and 15.28% in Al-Samtheai Stream basin which is the smallest. The region has between 120-360 meters above sea level elevations and gradually descends from northwest to southeast towards the Euphrates River. The ages of the rocks that make up the geological formations outcropping in the region range from Oligocene to Pliocene. In the study, due to the lack of meteorology stations, the data of the closest Al-Qaim and Anah meteorological stations to the region were adopted to clarify the prevailing climate for the region. The climate of the study area is characterized by cold winters and low precipitation, hot and dry summers. The region is affected by the Mediterranean climate and has a dry character. The soils of the region have salinity ranging from slight to medium, moderate base, and low values of organic matter fertility in them, as in the flooded soils. Their textures are between medium to moderately coarse, and the proportions of sand, clay, and silt vary horizontally and vertically, while desert soils (gypsum desert soil) are of average permeability. Vegetation, which is very scarce in the region, is highly insufficient. The number of species varies depending on the location and altitude.

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