Executive Summary : | The project aims to understand the interdependency between surface water and groundwater components of the hydrological continuum, promoting sustainable water use and protecting existing water reserves from contamination and over-abstraction. The Dehradun district is experiencing massive population growth, and understanding the mechanisms controlling river flow and groundwater recharge is crucial. The project will evaluate aspects such as physical and temporal contact, stability, flux, and water quality in the exchange between a groundwater body and a surface water body. Recharge is not the only concern; the exchange and movement of contaminants and groundwater pollution arising from groundwater-surface water interactions are also important. Data will be collected and used, including rainfall data, hydrogeological and hydraulic characteristics of aquifers, hydro-geophysics, hydro-morphological, lithological, and groundwater quality data. Groundwater potentiality mapping reliability will be controlled using drilling data.
The proposed area has not well documented groundwater movement and interaction with surface water. Concepts related to groundwater movement along flow paths of varying lengths from recharge to discharge areas will be more precise. Data and software will be used for implementation, including geological maps, Landsat satellite images, ASTER satellite's Digital Elevation Model/DEM, ArcGIS GIS software, meteorological, climatological, surface water resource and well inventory data, hydrogeological data, groundwater level measurements, streamflow data collection, chemical analyses of groundwater and surface water samples, geophysical investigation, and groundwater and surface water modeling using MODFLOW and COMSOL software. |