"With an average annual rainfall of 1,170 mm, India is one of the wettest countries in the world. Still, even with its rich natural water resources, with more than 300,000 square meters of bodies of water, the country is plagued by environmental issues such as water pollution from raw sewage and runoff of agricultural pesticides (Sharma, 2005). Another major problem is that tap water is not potable throughout the country. This implies that people, especially those from the lower income bracket, cannot avail of clean drinking water, since these have to be bought. Repugnant as it may sound, it is a reality that millions of Indians queue up everyday at public taps for one of life's most precious commodity — water." -ADB

Saturday 24 April 2010

Soon, system to measure real-time rainfall in dams

All major dams in the state on the Krishna and Bhima rivers will now have advanced automatic rain gauge stations (ARGS) for real-time mapping and collection of rainfall data.

The ARGS is part of the real-time data acquisition system (RTDAS), being implemented by the hydrology project (HP) of the state government's water resources department. An HP official said, "The work started around six months ago and will be completed by next year. The works include installation of the system network and software to manage the system."

The initiative, he said, will help forecast floods and deal with flood situations during the heavy rainfall season. "It will facilitate reservoir operators to act on time and prepare stockholders for floods. The system's forte is to provide data at any given point, as against the current manual measurements, which happen only once or twice a day."

He said, "It is a research-based project and the World Bank has sanctioned Rs 30 crore for it. The project will be operationalised at all major dams, catchment areas and flood-prone regions in the Krishna and Bhima river basins."

According to the HP department, there are around 149 automated rainfall stations, 42 automated full climate stations, 29 auto weather stations of ISRO and IMD (existing), 46 reservoirs (dams) and 34 river gauge discharge sites in the Krishna and Bhima river basins. The RTDAS will be installed at a few places selected from these.

The RTDAS will help forecast real-time floods and manage reservoir operation system in the Krishna and Bhima river basins, which will in turn manage the floods and help operate reservoirs optimally for multiple uses, the official said. "The reservoir operation system will facilitate optimisation of water storage to ensure a flood cushion and improve agricultural productivity." The project also aims at developing a forecasting system for river flows and flood levels at critical points and identify potential flood-affected areas, he added.

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