Snow and Glacier Melt Runoff

Objective

To design and develop a stream flow simulation model using remote sensing and GIS based inputs. Information generated through remote sensing techniques as glacier, permanent snow cover, seasonal snow cover, accumulation and ablation areas, altitude of snow and glaciers will be used in conjunction with daily maximum and minimum temperature, rainfall and discharge. A combination of digital analysis and GIS technique needs to be used, to package a comprehensive Snow and Glacier Melt Runoff estimation module.

The Himalayas [a north-east Indian region] has one of the largest concentrations of mountain glaciers and seasonal snow cover. These glaciers and snowfields are distributed throughout the Himalayas and numerous streams are originating from these glaciers. During summer & spring snow melting causes the access flow in the streams originated from the Himalaya. Due to snow melting and steep slopes these streams are potential sites of hydropower generation. Hence based on GIS analytical and visualization tools the estimation of snow melting required to discover the hydropower potential of these streams during different seasons and areas. SGMR application is a customized application for calculating Runoff coefficient and calculation of power (kw). Data of different basins and their map values, base stations, seasons, melt factor are entered to calculate Snow and Glacier Melt Run Off based on Temperature degree method.

Application Customization Approach

The application uses stream flow simulation model using remote sensing and GIS based inputs. Information generated through remote sensing techniques as glacier, permanent snow cover, seasonal snow cover, accumulation and ablation areas, altitude of snow and glaciers is used in conjunction with daily maximum and minimum temperature, rainfall and discharge. The module uses stream flow simulation model using remote sensing and GIS based inputs.

Key Features

Data Management

  • Season data
  • Melt factor data
  • Runoff coefficient data
  • Basin Data
  • Base Station data
  • Metrological data

Computation

  • Calculation of Runoff based on Temperature degree day method.
  • Calculation of power(KW) corresponding to Run off value.

Reports

  • Basin, Base station & season wise yearly report for estimation of Snow and Glacier Melt Runoff.
  • Comparison report of Runoff Coefficients of base stations for all seasons.

User’s Information

Space Applications Center(SAC),ISRO, Govt. of India
Ambavadi Vistar P.O.,Ahmedabad