General Information about Real Time Data Acquisition System-RTDAS & Real Time Decision Support System-RTDSS for Krishna-Bhima Basin - A Pilot Project
The Krishna river basin of which Bhima is a major tributary in Maharashtra covers area of 69967 sq km. It experiences highly variable rain ranging from 6000 mm in hilly region to 400 mm in lower plains.46 multipurpose reservoirs located in the basin are conventionally operated as single entity and the data is transmitted manually. This results in considerable time lag for decision making in emergency flood situations and preparation thereof. Therefore in year 2005 and 2006 when Krishna Bhima sub basin experienced a flash flood it lead to heavy damage to lives and properties in the basins.
To avoid such situations in future the Government of Maharashtra constituted a technical committee under chairmanship of Shri N. D. Vadanere with the main task of providing guidance for precise determination of reservoir releases during emergency situation in the state. The committee submitted the report in May 2007 recommending Integrated Reservoir Operation, Basin Simulation and Real Time Flood Forecasting. Based on the recommendations, RTDSS ( Real Time Decision Support System) is developed for Krishna & Bhima Basin in Maharashtra on pilot basis under World Bank Aided Hydrology Project Phase –II. For development purpose, system is principally divided in to two components i.e. Real Time Stream flow Forecasting and Reservoir Operation System (RTSF ROS) and Real Time Data Acquisition System (RTDAS).
Real Time Stream flow Forecasting and Reservoir Operation System (RTSF ROS) and Real Time Data Acquisition System (RTDAS) whole project was completed in between year 2011 to 2014. Total cost of project was 30 Cr.
Real Time Data Acquisition System (RTDAS)
In RTDAS, an up gradation of the existing manual HIS with real time data recording and self-transmitting system has been done. RTDAS for Krishna Bhima is spread over 70,000 sq km area and covers Satara, Sangali, Pune, Solapur, Kolhapur & some part of Ahmednagar district. Total 249 Real Time Hydro meteorological data collection stations are installed for Krishna and Bhīma sub basins. Stations include 191 Automated Rainfall Stations, 42 Automated Full Climate Stations, 37 Automated River /canal Water Level (Stage) Discharge Station and 46 Automated Reservoir Water Level & Outflow Discharge Stations. To measure various hydro meteorological parameters different kinds of Rainfall, Climatic, Water level and gate sensors are installed at prominent locations in the basins (rivers, dams, dam catchments, etc.).
Data centre for Krishna and Bhima basin is established at Sinchan Bhavan Pune. Data is collected and transmitted in real time mode through VSAT/GSM to servers at Pune at 15 minutes time interval in case of rainfall and at one hour time interval in case of reservoir/river water level data. This data is made available to all stakeholders on project website; http://www.rtsfros.com/mahakrishna at Real time data menu. The real time data is useful to know rainfall distribution, climate, water levels or storages of reservoirs, water level and discharges of the rivers on real time basis. Benefits of RTDAS include cost effectiveness, high frequency data, better ability to detect problems with measurements, faster access to data and consistency in measurement
Images of Real Time Hydrometeorological Stations installed at Field
Figure 1 : Automated Rainfall Station 1: Thosghar (Dist: satara ) 2: Pabal (Dist : Pune)
Figure 2 : Automated River water Level & Discharge
Station 1: Kalyani nagar (Dist.: Pune) 2: Pimple Gurav (Dist: Pune)
Figure 3 : Automated Full Climate Station
1: Bhīma Nagar (Dist.: Solapur) 2: Rosa (Dist.: Osmanabad)
Figure 4 : Automated Reservoir Water Level & Outflow discharge Station
1: kadavi dam (Dist.: Kolhapur) 2: Radhanagari dam (Dist.: Kolhapur)
Figure 5 : Automated Reservoir Water Level & Outflow discharge Station
1: Dhom Balkawadi i dam (Dist.: Satara) 2: Urmodi dam (Dist.: Satara)