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INDIA: HYDROLOGY PROJECT-II
Decision 
A reasoned choice among alternatives 
Definition of a DSS 
Computer based systems integrating tools and databases that assist a decision-maker in making informed decisions and analyze consequences.
Misconception: A DSS takes decisions 
oUsing a DSS, a project manager is able to make rational use of resources without an in-depth knowledge of modeling techniques 
oProvides timely information 
oCommunicate result to a larger audience 
oOpen and unbiased working 
oScenario analysis
•A river basin is divided into a number of sub- basins based on the location of hydraulic structures and hydrological network 
•A hydrological model (NAM) is calibrated for each sub-basin to estimate the hydrological components (evaporation, rainfall recharge, overland flow, interflow and base flow) ~ Soul 
•An allocation model (MIKE Basin) in conjunction with hydrological inputs is used to allocate the available SW and GW ~ Heart 
•DSS is used to analyze scenarios ~ Brain
Objective 
•NAM model provides a conceptual representation of land phase of hydrological cycle and simulates rainfall-runoff processes at the catchment scale. Basic data requirements 
•Precipitation time series 
•Temperature time series (for snow melt modeling) 
•Evapo-transpiration time series 
•Observed discharge time series Basic model outputs 
•Catchment runoff 
•Subsurface contributions (base flow, interflow) 
•Actual evapo-transpiration 
•Groundwater recharge and levels 
•Soil moisture storage content
•Process and analyse GIS and time series information 
•Publish selected information (general, drought, flood..) 
•Model applications for long-term/short-term planning
Model explorer 
Model structure 
Properties 
Tools
Specific runoff in the basin 
Rain fall distribution
For given scenarios of planned water allocation: 
What is the risk of reaching critically low levels in coming dry season? 
What is the likelihood of filling the reservoir in the coming wet season?
Combined use of SW & GW in Sri Ram Sagar Project 
Scenario I: no restriction on SW use 
Scenario II: limited SW abstraction by head and middle section users permitted
To study viability of inter sub-basin water transfer during monsoon to rain shadow regions to augment ground resource.
Drought Indicators 
Assessing the impact of check dams and artificial recharge measures
THANKS

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18 - DSS_NIH_Presentation-Sep-17

  • 1.
  • 3.
  • 4.
  • 5. Decision A reasoned choice among alternatives Definition of a DSS Computer based systems integrating tools and databases that assist a decision-maker in making informed decisions and analyze consequences.
  • 6. Misconception: A DSS takes decisions oUsing a DSS, a project manager is able to make rational use of resources without an in-depth knowledge of modeling techniques oProvides timely information oCommunicate result to a larger audience oOpen and unbiased working oScenario analysis
  • 7. •A river basin is divided into a number of sub- basins based on the location of hydraulic structures and hydrological network •A hydrological model (NAM) is calibrated for each sub-basin to estimate the hydrological components (evaporation, rainfall recharge, overland flow, interflow and base flow) ~ Soul •An allocation model (MIKE Basin) in conjunction with hydrological inputs is used to allocate the available SW and GW ~ Heart •DSS is used to analyze scenarios ~ Brain
  • 8.
  • 9. Objective •NAM model provides a conceptual representation of land phase of hydrological cycle and simulates rainfall-runoff processes at the catchment scale. Basic data requirements •Precipitation time series •Temperature time series (for snow melt modeling) •Evapo-transpiration time series •Observed discharge time series Basic model outputs •Catchment runoff •Subsurface contributions (base flow, interflow) •Actual evapo-transpiration •Groundwater recharge and levels •Soil moisture storage content
  • 10.
  • 11.
  • 12.
  • 13.
  • 14.
  • 15.
  • 16. •Process and analyse GIS and time series information •Publish selected information (general, drought, flood..) •Model applications for long-term/short-term planning
  • 17. Model explorer Model structure Properties Tools
  • 18.
  • 19.
  • 20.
  • 21. Specific runoff in the basin Rain fall distribution
  • 22. For given scenarios of planned water allocation: What is the risk of reaching critically low levels in coming dry season? What is the likelihood of filling the reservoir in the coming wet season?
  • 23.
  • 24. Combined use of SW & GW in Sri Ram Sagar Project Scenario I: no restriction on SW use Scenario II: limited SW abstraction by head and middle section users permitted
  • 25. To study viability of inter sub-basin water transfer during monsoon to rain shadow regions to augment ground resource.
  • 26. Drought Indicators Assessing the impact of check dams and artificial recharge measures
  • 27.