Indigenous Visibility Measuring System, DRISHTI, installed at IGI Airport

An indigenously designed and developed Visibility Measuring System DRISHTI was installed at the Indira Gandhi International (IGI) Airport, New Delhi on 20 July 2015.  The CAT III B IGI Airport, New Delhi, is now the first Airport in the country to have 10 indigenous systems operating in all its three runways.

The system developed by CSIR-National Aerospace Laboratories (CSIR-NAL), Bengaluru will be used for reporting the runway visual range, which is a critical parameter for safe landing and take-off of aircraft in poor visibility conditions (<25 to >2000 meters).

Drishti system
• It is very cost-effective and is a mandatory system required at all airports as per International Civil Aviation Organisation (ICAO) and World Meteorological Organisation (WMO).
• The complete system is engineered in such a way to enable easy installation and maintenance.
• It can perform health monitoring of the system through web enabling from Bengaluru itself.

Earlier, CSIR-NAL and India Meteorological Department (IMD) signed a partnership agreement to jointly execute a mega project for installation of nearly 70 Drishti systems, at various Airports of the country.

The Drishti field site system is completely designed and fabricated at CSIR-NAL. IMD has established the dual mode Landline and Wi-Fi communication along with multiple displays at Air Traffic Control Room and Approach Radar Room.

The data from Drishti systems at IGI Airport can be viewed on a single screen at ATC, which would aid the MET officer to easily report visibility data to pilots.

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