دراسات الخصائص المورفومترية لحوض وادي أم أرطى بمنطقة الجوف باستخدام نظم المعلومات الجغرافية

الملخص EN

The aim of this research was to study the Om Arty Valley basin, located between longitudes 370 5' 31" – 380 38' 9" east, and latitudes 270 59' 31" – 300 29' 45" north, which follows the administrative region of Al-Jawf in northwestern Saudi Arabia.

The basin is important because it passes through and impacts agricultural and urban projects in the area.

The basin area is 20,778 square kilometers, 283 kilometers long 151.52 kilometers wide, , and has a circumference of 1646 kilometers .

The main focus of this study was to use a GIS program to evaluate the morphometric characteristics, represented by the spatial, formal, and relief characteristics, as well as the drainage network characteristics.

Satellite images and topographic and geological maps were used to determine the nature of the basin and its characteristics.

Maps of the study area were obtained using the Arc GIS 10.3 program, followed by the analysis and extraction of morphometric measurements of the basin.

The study protocol was a quantitative and analytical method that was appropriate for the nature of the study.

The analysis generated a set of results showing that the different rock formations and lithological characteristics have a clear impact on the morphometric characteristics of the basin, including the spatial and formal characteristics.

A study of properties of the basin confirmed that the basin has not yet reached the stage of maturity.

Moreover, the current climate conditions in the study area are not the only factors that resulted in the current form of the basin.

Rather, it was produced by previous climatic conditions that differed from the current ones.

This study showed the importance of the use of GIS programs in morphometric studies because of their comprehensiveness and the benefits afforded in terms of time and effort and the accuracy of the results