Monitoring of Debris-glacial floods by radar interferometry (case study: Debris-glacial flood of 2022 in Oshtorankuh East Lorestan)

Monitoring the performance and environmental changes caused by deposited floods play an important role in land planning and management. Monson's rains in summer 1401 occurred in large areas of Iran, which in the Astran Mountain created a flood of deposits. It also had significant morphological changes to the most important river in the area  and damaged the water transfer facilities of the cities of Azna and Aligudarz . Nowadays, radar methods are effective in studying qualitative and quantitative dimensions of deposited flows, with high accuracy and low cost, and this study is also for tracking the origin of deposits-ally from radar and Sentinel-1 and index data (NDSI) to evaluate the impact of sudden snow melting. Used in snowmelts in the area. The results indicated the sudden melting of snowmelts in the area due to Monson's rainfall, which played an important role in the creation of a deposited-water flood. The flow through the glacier valleys of the area, the plant's sediments and remnants of the area were transferred to water transfer facilities and caused a lot of damage to them. Radar analysis of water zones also showed that the Kamandan Dam before the flooding phase has prevented more serious damage to the downstream.