About DSS - Hydrology

Decision Support Systems (DSS) and Data Bases for Hydrology and Watershed Management is one of the most important component of Neeranchal Project. As per the World Bank, NIH would be an implementing partner to develop new technologies and models for hydrological assessment and monitoring and support participating states to integrate the systems into IWMP operations. Under the guidance of the broader National Informatics Data Center (NIDC) partners. the sub-component would also help establish Information Technology (IT) and Geographical Information System (GIS)-enabled land resource inventory and data bases in participating states. The work would entail developing an overall framework, assessing data needs, common deļ¬nitions and data sharing protocols. It would also provide technical assistance to states as they develop their own data bases. The technical assistance would include developing the framework for a national watershed data base in DoLR (linked to state data bases), housed under the NIDC. The project would engage a suitable agency to procure and guide the development remote sensing data and analysis. DSS-H has been grouped in four major components viz., Planning, Site and Structures, Impact Assessment and Detailed Project Report (DPR) Generation.

DSS-H will provide:
  • Suitable sites for water harvesting structures
  • Estimation of number of structures feasible
  • Water availability from different sources
  • Water demand for different uses
  • Water balance
  • Measures for addressing gap in water demand
  • Impact assessment throught various indices





User friendly

Web Based


Open Source

Core Element of DSS

Data Visualization

Various GIS and remote sensing data has been setup in the DSS-Hydrology. These dataset will be used for visualization and overlaying of different layers. Different thematic layers have been grouped together as per avaialability and maps are created. These maps can be directly exported as pdf or an image file.


Planning is most important component in any project. Various hydrological components of watershed are being analysed in this step. These components are Evapotranspiration, Runoff, Ground water recharge, Water demand, water use efficiency, soil health, crop production and other such components. These factors are critical for every watershed. Planning stage gives an overview of these important components and helps us in taking adequate measures to improve them individually. This step helps in taking decision about which structures can be built in a particualar region, based on these factors along with additional data. The impact of these structures can also be analysed once the implementation is completed.

Sites & Structures

Water harvesting structure is one of the key components of watershed development. Appropriate sites and structures are needed to harvest excessive surface runoff, help in flood control in lower catchment, improving soil moisture availability and to facilitate the ground water recharge in the watershed.Depending on the local hydro-geomorphological settings, construction of check dams, gully plugging structures, percolation tanks and farm ponds, etc., are to be planned.The DSS - H will help in selection of suitable sites for construction of different water harvesting structures.

Impact Assessment

Impact Assessment is an approach which has a potential to promote sustainable development. Basically, it is designed as an activity to predict the short-term and long-term impacts of a proposed project intervention on human well-being including the well being of ecosystems on which survival of various life forms depends upon. Thus Impact Assessment is a predictive exercise aimed at foreseeing the environmental and related socio economic impacts of developmental activity. It is also a decision making tool that helps in designing environment management plan.

Input to Detailed Project Report (DPR)

Scientific outputs generated from the DSS-Hydrology will be used directly in the DPR generation. This will help the authorities to embed authentic data from the DSS-H in the forms of Tables, Maps, Graphs and Images. DSS-H Tools are being designed so that the outputs are readily usable to the authorities. Mapping of the existing DPR topics with the DSS-H output is currently in progress.