Simulation of snowmelt runoff in Armand basin using SRM model and satellite images

Subject Areas : hydrology

Matin Sheini Jabari ¹ , hossein ghorbanizadeh kharazi ²

1 - MSc. student, Department of Water Engineering, Islamic Azad University, Shoshtar Branch, Shoushtar, Iran
2 - Assistant professor

Received: 2022-12-06 Accepted : 2023-10-06 Published : 2023-05-22

Keywords: "Snowmelt", "SRM model", "MODIS sensor", "Armand basin",

Abstract :

Snow in mountainous areas is one of the main components of the hydrological cycle, however, there are many changes in its temporal and spatial distribution. In this study, the SRM model and remote sensing data were used in order to monitor the time and space of the snow cover level and simulate the runoff caused by snowmelt in Armand Basin. The hydrological data of the basin and the raster data of the MODIS sensor were collected and used for a period of 2 years (water years 2005-06 to 2006-07). After processing MODIS sensor images in ENVI software, the snow cover level was determined. The simulation with the SRM model showed successful and acceptable results. So that the results of the evaluation of the model using two indicators, the Coefficient of determination and the volume difference, showed the high accuracy of the model in estimating the runoff resulting from snowmelt in the Armand Basin. The R2 obtained for Armand Basin is about 0.90.