Heli-borne survey by NGRI to map acquifer in north west


CSIR-Nationwide Geophysical Analysis Institute (NGRI) might be utilizing heli-borne geophysical mapping method to cowl about 4 lakh sq km of arid areas north western India to take up excessive decision aquifer mapping and administration to enhance the groundwater assets.

The institute has been contracted by the Union Water Sources Ministry to take up the undertaking in in two phases — from the foothills of the Himalayas to Punjab, Rajasthan and Gujarat until the Rann of Kutch, to supply a excessive decision 3D picture of the sub-surface as much as a depth of 500 meters beneath the bottom.

It’s also growing a brand new drone in affiliation with different CSIR labs for taking on drone primarily based electro-magnetic system for conducting aeriel geo-mapping with the primary prototype instrument prepared for testing, stated Director V.M. Tiwari on Wednesday.

“We’re additionally going to take up drone-based magnetic measurement of the Ladakh area since ground-based geothermal floor measurements will not be potential. Whether or not it’s 10 metres or 100 metres, distant sensing goes to play an enormous position and we have to strengthen our capability to faucet pure assets in an environmental pleasant method,” he stated.

Dr. Tiwari was collaborating in a webinar organised by CSIR on ‘Airborne Geophysics: Quick-tracking exploration of mineral and groundwater assets in India’ as a part of the 75 years celebrations of the nation’s independence.

The director listed out the a number of profitable tasks performed utilizing airborne or heli-borne survey like serving to Rail Vikas Nigam Restricted (RVNL) full a 126-km work on 16 tunnels in Rishikesh, examine for survivors within the latest Himalayan landslide on the Chamoli area to map the tunnel inside 48 hours, serving to Atomic Minerals Directorate (AMD) probe for uranium and different minerals, and many others.

NGRI chief scientist Ajay Mangalik traced the evolution of the airborne geophysics which started from a Dakota fastened wing plane within the ’70s to heli-borne surveys with spectrometers inside and sensors hanging beneath to examine for rock, radioactive components, oil, gasm bedrocks, faults, acquifers, and many others.

AMD further director R. Mamallan recalled the 50-year affiliation with NGRI and stated whereas the primary section of 1.25 lakh flying km of airborne survey has been accomplished for heavy metals exploration, one other 1.25 lakh flying km is beneath manner, of which 30,000 km was performed and one other 90,000 km is to be accomplished in 4 years.



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