Airborne electromagnetic studies carried out in the granitic terrain of Tumkur district, Karnataka led to the introduction of new concepts such as (i) precise mapping of water bearing fracture networks using the information of depth of investigation (DOI); (ii) HYDROLIN that defines underground lineaments consisting of water-saturated fracture networks (iii) TGWH (critical depth called threshold groundwater horizon) below which probability of water saturated fracture networks of regional extension increases significantly.
Senior Technical Officer(2)
Senior Technical Officer(1)