Krishna & Co-ordination Circle
The Krishna & Co-ordination Circle is functioning with its headquarters at Hyderabad under the Administrative Control of Superintending Engineer, Krishna & Co-ordination Circle, KGBO, CWC, Hyderabad.This Circle comprises of two Divisions viz Upper Krishna Division at Pune and Lower Krishna Division at Hyderabad and their 11 Sub Divisions (including a Mechanical Sub Division at Hyderabad) for managing the works at 46 Hydrological Observation sites (including 10 H.O stations on West Flowing River Basin in Maharshtra and Goa and 1 H.O. station on East Flowing Rivers Basin in Andhra Pradesh.), 35 Wireless Stations (including 5 stations in Pennar Basin). There are 40 Rain Gauge Stations in the jurisdiction of this Circle. There are 8 flood forecasting stations in Krishna Basin and 1 Flood Forecasting Station in Pennar Basin and one Level-II Water Quality Laboratory at Pune and 14 Level-I Water Quality Laboratories at different sites. There are 41 Telemetry stations installed in Krishna Basin.
FUNCTIONS UNDER KCC:
Planning Establishement and carrying out hydrological observations done through a network of Gauge and Discharge Stations in Krishna Basin and its Sub-Basins spread over three States viz. Andhra Pradesh, Maharashtra and Karnataka (excluding upstream portions of Tungabhadra River in the State of Karnataka) and also covering the East Flowing Independent River Gundlakamma in Andhra Pradesh and West Flowing Rivers spread over in two states viz. Maharashtra and Goa.
Compilation and storage of Data:
The basic data of gauge, discharge, suspended sediment & bed material, water quality collected at sites are processed at various levels and published in the form of Water Year (1st June to 31st May) Books.
Water Quality Data:
25 Water Quality Parameters are analysed monthly at one Level-II WQ Lab functioning under Krishna & Co-ordination Circle attached to Upper Krishna Division, Pune, 14 Level-I laboratories are functioning at different Water Quality Stations, out of which 8 are under Upper Krishna Division, Pune and 6 are under Lower Krishna Division, Hyderabad.
Flood Forecast and Warning:
Flood Forecasts and Warning in Krishna Basin and Pennar Basin are formulated and disseminated to the local authorities enabling them to take timely action to minimize the flood damage. The flood forecasting network comprises of 36 wireless stations (including Pennar Basin) out of which 12 are under Lower Krishna Division (8 at Gauge & Discharge stations and 4 at Gauge stations), 5 are under Upper Krishna Division, Pune at Gauge & Discharge stations, 4 are under Cauvery Division, Bangalore at Gauge & Discharge stations, 2 are under H.O Division, Chennai at Gauge & Discharge stations, 10 are at Dam sites. In addition, there are 2 Control Rooms (one at Kurnool and another at Hyderabad) and 1 link station at Pune. Wireless sets have been installed at 36 stations for comminication of river gauge and flow data on real time basis for Flood Forecast purpose. There are 9 Flood Forecast stations (including one at Pennar Basin) under K&C Circle.
>> For more details of flood forecasting
>> Dissemination of Forecasts
>> Flow diagram of Flood Forecasts
Flood Forecasts of Rivers and Inflow Forecasts for Reservoirs:
Out of 9 Flood Forecasting Stations under Krishna & Co-ordination Circle 8 are in Krishna Basin and 1 Station in Pennar Basin. Out of the 9 stations, 6 are flood inflow forecast stations (Reservoirs) and 3 are flood level stations (River Forecast Sations) controlled by 2 Control Rooms one each at Lower Krishna Division, Hyderabad and Lower Tungabhadra Sub-Division, Kurnool. 24/7 schedules are managed during high flood season.
Modernisation of Flood Forecasting in Krishna Basin:
Under X Plan, Scheme under "Establishment and Modernisation of Flood Forecasting and Inflow Forecast", continued in XI Plan as well, is being implemented to upgrade the data communication with satellite based Telemetry System. By this system, data will be automatically observed by various electronic/ electrical sensors and will be transmitted to the INSAT/METSAT and in turn will be relayed back to Earth Station. These data will be processed at the Earth Station and will be re-trasmitted to Modelling Centres through V-SAT Communication link.
Data will be transmitted automatically through Telemetry System to the computers at the control room. Mathematical model (upgraded version of MIKE11) will be used for routing the base station flows and generating runoff due to rainfall from the intermediate catchments.
There are 41 stations in Krishna Basin and data from these stations is received on real time basis. Out of the 41 Stations in Krishna Basin ,16 Stations are under the jurisdiction of Upper Krishna Division, Pune, 19 under Lower Krishna Division, Hyderabad and 6 are under Cauvery Division, Bangalore.The stations transmit hourly water level and rainfall every fifteen minutes. Real time data from Telemetry is being used for flood forecasting purpose from the year 2008 onwards. Two Modelling Centres at Kurnool and Hyderabad are also functioning for Krishna Basin.
* Association with Central teams:
Association with central teams for flood/drought damage assessments.
* R&D Programme in Water Sector in Apex Organisation
During the XI Plan, Morphological studies for Krishna and Tungabhadra rivers are completed. Under this, work of taking cross sections on Krishna and Tungabhadra rivers were done by Upper Krishna Division, Pune and Lower Krishna Division, Hyderabad respectively.
* IWIN Samples:
Samples collected from three Water Quality Stations under Lower Krishna Division, Hyderabad of this Circle are sent to Physical Research Laboratory, Ahmedabad (Gujarat) every month.
Last Updated 04.01.2013