Heli borne geophysical mapping for groundwater resources

Heli-borne geophysical mapping technique provides a high resolution 3D image of the sub-surface.

New Delhi: Union Minister of State (Independent Charge) Science & Technology Dr Jitendra Singh said the latest state-of-the-art technology is being employed by Council of Scientific & Industrial Research (CSIR) for mapping ground water sources in arid regions and thus help utilise ground water for drinking purposes.

The Minister disclosed that CSIR, along with National Geophysical Research Institute NGRI, have undertaken High Resolution Aquifer Mapping & Management in Arid Regions of North Western India to augment the groundwater resources.

He said that the Heli-borne geophysical mapping technique of CSIR-NGRI provides a high resolution 3D image of the sub-surface up to a depth of 500 meters below the ground.

Dr Jitendra Singh said that the Ministry of Jal Shakti, Govt. of India has entrusted the responsibility to CSIR-NGRI for mapping ground water sources in arid regions.

Dr Jitendra Singh said that Arid areas in the north western India spread over parts of states of Rajasthan, Gujarat, Haryana and Punjab cover nearly 12% of the total geographical area of the country and is home to more than 8 crore people.

He said, with an annual rainfall in the range of less than 100 to 400 mm, this area faces acute shortage of water throughout the year and it is proposed to take up high resolution aquifer mapping and management to augment the groundwater resources.

Dr Jitendra Singh informed that this technique is cost-effective, precise and is useful to map large areas (districts/states) within a short time to map the vast extent of groundwater resources in arid regions of our country. The entire work will be completed by 2025 with more than 1.5 lakh square kilometers of area with an estimated cost of Rs. 141 Crores.

He said, the ultimate aim of this project is to map the potential sites for groundwater withdrawal and conservation and results will be used to meet the broader objectives of aquifer mapping, rejuvenation and management of groundwater resources in the arid areas.

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