Studying the morphology and spatial changes of Azerbaijan Ergs using satellite images and analysis of erosive winds( case study: Qomtape and Maghsudlu Ergs)

Abstract

Aim: Sand dunes are one of the most important landforms created by wind deposition. They are wide, flat desert areas with wind-swept sand and little or no vegetation. Material & Method: For this purpose, the statistics and meteorological data of 19 synoptic stations of the province were used to determine the prevailing wind and the origin of wind deposits, as well as the drift potential (DP), the resulting drift potential (RDP), and the resulting drift direction (RDD) caused by the sand from each sand obtained.Finding: According to the study, the rate of erosion and change in area in the erg of Qomtape was higher than in the erg of Maghsudlu, and the distance of 37 years was estimated at 72.41 percent for the erg of Qomtape and 26.95 percent for the erg of Maghsudlu. The potential/direction of sand Drift also showed that the origin of the sands of Maghsudlu reg is from the side of Mount Sahand, and the origin of the sands of the reg of Qomtape is from the side of Lake Urmia.Conclusion: The origin of the region's wind Sands due to the prevailing wind direction, which is predominantly northern, can also be expressed as the presence of fine sediment at the end of the region's cone deposits and the place where plate floods spread. The place where plate floods spread supplies most of the area's sands, and the end of the fine sediment deposits provide the fine sediment.Innovation: In this research, an analysis of the sand drift potential and its paths helps us interpret the formation of the ridges elsewhere.

Keywords

• wind
• drift potential
• sand dunes
• qom tepe
• maqsoodlu