Intergrated Water Resourcses system
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This document discusses integrated water resource management (IWRM) and quantitative methods for assessing groundwater resources using remote sensing and GIS. IWRM is defined as a systematic process for sustainably developing, allocating, and monitoring water resources considering social, economic and environmental objectives. Key aspects of IWRM planning include addressing water scarcity, degradation, policy frameworks, long-term planning, sector coordination, supply and demand assessments, and information systems. Quantitative groundwater assessment methods consider parameters like lithology, aquifer geometry, climate, and remote sensing can provide regional data to complement traditional point-based methods. Modeling involves formulating models, computations, applications and evaluation.
Intergrated Water Resourcses system
- 1. Integrated Water Resources Management (IWRM) PARITOSH SINGH CHAUHAN Expert-Hydrogeology & Remote Sensing/ GIS
- 2. Water development and management should be based on a participatory approach, involving users, planners and policymakers at all levels What is Integrated Water Resources Management ? A systematic process for the sustainable development, allocation and monitoring of water resource use in the context of social, economic and environmental objectives
- 3. An IWRM Plan should:
- 4. Problems to be Addressed Water resources scarcity Environmental Degradation Water Policy framework Long term planning Sector Coordination Supply and demand assessments Water resources information system
- 5. Parametersto beconsidered forassessinggroundwaterresources usingquantitativemethods Lithology Structural features Aquifer geometry Hydrological characters of formation Bore hole litho logs Weather cycle Climate Rain fall Evapo-transpiration Humidity Soil moisture Wind velocity * Geology & Soils * Hydrometeorology
- 6. Parameterstobeconsidered forassessinggroundwaterresources usingquantitativemethods Aquifer type, Flow pattern Water level fluctuation Specific capacity of wells Topography Drainage Slope , aspect & gradient *Hydro geomorphology* Hydrogeology
- 7. Aspects of Ground water * Ground water Potential - Recharge characteristics * Ground water Quality - Geogenic & Anthropogenic pollutants Important components to be considered for modeling ground water - Estimation of recharge from canals, tanks, reservoirs, field ponds etc. - Monitoring the aquifer conditions for different rates of pumping - Assessing the interaction between inter watersheds boundary and their aquifer & flow conditions
- 8. Steps involved in Ground water Modeling - Formulation - Approximation / transformation - Computation - Applications - Evaluation
- 9. “on point” information but regionalization is a ?? Temporal and spatial analysis High resolution potential Vegetation-Soil-Topography interface Traditional methods Remote sensing and GIS
- 10. Methods for Inputting the Information Identification and delineation - Overlay analysis Parameterizing - Based on end user requirements Validation - Acceptability of the model and accuracy Remote sensing techniques can not serve as “Stand Alone” method but it is definitely a powerful complimentary tool set and integrated to those already existing in WR modeling
- 11. OBJECTIVES • Assessing the availability and requirement of ground water in the study area • Quantifying the surface and sub surface water availability through development of models
- 12. METHODOLOGY Various resource maps preparation (As of IMSD) Remote Sensing & GIS. Surface water estimation by SCS curve method (Verified with strange curve method) Sub surface water estimation by Lumped Surface cum sub surface model and a distribution parameter (Mathematical model) for the aquifer system Assessing the Water balance.
- 13. Computation of Available Water Resources: • Surface run off using land use,land cover and hydrological soil group. • Various in flow components like rainfall recharge, river bed recharge, return flow irrigation, sub surface in flow. • Various out flow components like extraction for human, animal, agricultural consumption,sub surface out flow, loss due to evapo transpiration through natural vegetation. For every 1km * 1km grid area.
- 14. Simulation of Model by • Net Storage(NQ) with time interval of 15 days(T). • The boundary condition • Available pizometric heads • Aquifer parameter