Hydrology Project is one of the major undertakings of the Indian Government. Below is the sumarry of the Hydrology Project.
Hydrology Project | Basic Facts
- World Bank aided Hydrology Project – implemented in two phases including Hydrology Project (1995-2003) and Hydrology Project II (2004-2014).
- Central to improve planning, development, and management of water resources, as well as flood forecasting and reservoir operations in real-time.
- Led to a significant change in availability and reliability of hydro-meteorological data in India.
- Now water resources development projects (such as hydraulic structure construction, irrigation development through surface water and/or groundwater) and other infrastructure developments are based on accurate information, and thus designed appropriately and economically.
- Reservoir operation is based on real time hydrological information in catchment and is integrated with climate forecast which would minimize likelihood of floods and ensure availability of water for various uses.
- Hydrology Project has benefitted nine States (Andhra Pradesh, Chhattisgarh, Gujarat, Karnataka, Kerala, Maharashtra, Madhya Pradesh, Orissa and Tamil Nadu) and 6 central agencies (Ministry of Water Resources-MoWR, Central Water Commission-CWC, Central Ground Water Board-CGWB, Central Water and Power Research Station-CWPRS, National Institute of Hydrology-NIH, India Meteorological Department-IMD) during Phase I while four new states (Goa, Himachal Pradesh, Pondicherry and Punjab) and two central agencies (Bhakra Beas Management Board (BBMB) and Central Pollution Control Board (CPCB) joined during Phase II.
- Offered a platform for water agencies all over India to learn from each other, which motivated them to modernize existing hydro-meteorological monitoring systems from manual to Real Time Data Acquisition Systems (RTDAS) as well as develop tools for Integrated Water Resources Planning and Management for enhancing productivity and cost effectiveness of water related investments.
HYDROLOGY PROJECT | KEY ACHIEVEMENT
Development of Hydrological Information System (HIS)
- HIS includes development of networks of hydro-meteorological stations and data management systems for surface water, groundwater and water quality.
- Networks of Hydro-meteorological Stations Extended observation networks (for measuring hydro-meteorological parameters) with improved technology for reliable and accurate measurement – including automation with RTDAS, which transmit data directly to data processing centres were developed in various parts of country.
- RTDAS for hydrological monitoring includes radar type water level recorders for rivers and reservoirs, snow gauges, Acoustic Doppler Current Profilers (ADCP), and additional Digital Water Level Recorders (DWLR) for groundwater well.
Web-based Data Management System
- Web-based software have been developed to modernize desktop based data entry, processing, storage and dissemination systems into a centralized database management system to ensure uniformity in HIS procedures across states and regions.
- Users in state and central agencies are enabled to enter and process data on-line, within their own virtual data repository.
- Systems are aimed to centralize operation and maintenance cost of system while states would require only computer and internet to upload and access data.
Surface Water Information System (e-SWIS)
- Under coordination of CWC, e-SWIS has been developed with an objective to enable easily access to hydro-meteorological database by multiple agencies through internet.
- System replicates functionalities of previous Surface Water Date Entry System (SWDES), Hydrological Modelling System (HYMOS) and WISDOM systems.
Groundwater Estimation and Management System (e-GEMS)
- eGEMS system is an internet based central repository and data processing tool for groundwater related data (such as water level, water quality, exploration, geophysics and GIS data).
- It replicates functionalities of previous Ground Water Data Entry System (GWDES and) GEMS systems.
- CGWB is coordinating agency to maintain centralized server system.
GIS based web-Portal for Water Quality Data (e-WQIS)
- eWQIS is an internet based web portal for publishing real-time water quality data from automated water quality stations.
- Portal enhances accessibility of data by end users – CPCB, PCBs and general public, and enables users to receive data summaries and review historical data.
River Basin Planning and Management Tools
- Decision support system for water resources planning, reservoir operation system for flood management and hydrologic design aids have been developed under project.
- These tools enable decision makers and water resources management agencies in integrated planning and management of river basins and enhance productivity and cost effectiveness of water related investments.
- Decision Support System (DSS) for Water Resources Planning and Management Under aegis of NIH and assisted by consultants, extensive software aimed at providing DSS for integrated water resources planning, development and management was developed.
- Modules in DSS (P) includes surface water planning, groundwater use planning, integrated reservoir operation, irrigation management, drought monitoring, assessment and management, planning of conjunctive use of surface and groundwater, and water quality management.
Hydrological Design Aids (HDA)
- Under aegis of CWC and assisted by consultants, HDA software has been developed for surface water.
- Software facilitates and expedites hydrological design of infrastructure (e.g. design flood analysis for gauged and un-gauged catchments), water resources availability assessments and reservoir sedimentation analysis, and would also, for first time, provide basis for uniform approaches among states and between states and central agencies.
- HDA software has in-built facilities to integrate GIS and Excel type functionalities.
- Part of data analysis and processing functionalities included in previously employed HYMOS system has also been incorporated into HDA.
Stream Flow Forecasting and Reservoir Operation Systems for Flood Management
- For first time in India the stream flow forecasting and reservoir operation would be able to provide lead time for preparation of floods in days even for small catchments.
- System makes use of seasonal and satellite based three days climate forecast (MWRF, RIMES Bangkok) and integrates real time hydrological information system, hydraulic and reservoir operation models.
- System facilitates scheduling of reservoir releases and hydropower turbines, operation of spillway gates, issuance of flood warnings, and deployment of area evacuation measures.
- Extensive use of these tools is being carried out in Bhakra-Beas Basin (Real Time Decision Support System—RTDSS) under aegis of BBMB and in Upper Krishna and Upper Bhima basins (Real Time Flood Stream flow Forecasting and Reservoir Operation System -RTSF & ROS) under aegis of Maharashtra Surface Water Dept.
- System would help in minimizing flood impact in lower reach of river basins by minimizing sudden flow releases from reservoirs which has been one of the major reasons for floods downstream.
- BBMB has been able to improve its management of Bhakra and Pong dams during 2013 monsoon season, to the extent that no flooding occurred, whereas in 1988 severe flooding occurred at end of monsoon season under same total inflow conditions in both years.
Groundwater Management – Aquifer Mapping
- CGWB has commenced National Aquifer Mapping Program to prepare aquifer management plans and introduce participatory community groundwater management across nation.
- Under Hydrology Project, 6 pilot projects were selected to test advance techniques and serve as guiding tool for National Aquifer Mapping Program.
- Pilot projects included organization of existing database, hydro-geological modeling and conducting field tests, geophysical investigations and exploratory drilling.
- Geophysical tests involved advanced technologies, wherein heliborne Transient Electro Magnetic (TEM) geophysical surveys was also carried for first time in India.
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