LiDAR (Aerial Ground) Survey for Delhi

• With the start of LiDAR (Aerial Ground) Survey, High Speed Rail work gathered momentum for Delhi – Varanasi High Speed Rail Corridor.

About:

• The LiDAR survey for Delhi-Varanasi High Speed Rail Corridor started from Greater NOIDA where a Helicopter fitted with state of art Aerial LiDAR and Imagery sensors took the first flight and captured the data related to ground survey.

• National High Speed Rail Corporation Limited is adopting Light Detection and Ranging Survey (LiDAR) technology which provides all the ground details and data in 3-4 months wherein this process normally takes 10-12 months.

• The ground survey is a crucial activity for any linear infrastructure project as the survey provides accurate details of areas around the alignment.

Lidar:

• Lidar, which stands for Light Detection and Ranging, is a remote sensing method that uses light in the form of a pulsed laser to measure ranges (variable distances) to the Earth.

• These light pulses—combined with other data recorded by the airborne system— generate precise, three-dimensional information about the shape of the Earth and its surface characteristics.

• A lidar instrument principally consists of a laser, a scanner, and a specialized GPS receiver.

———————————————

Mains Paper 3: Science and Tech

Prelims level: LiDAR (Aerial Ground) Survey

Mains level: Key highlights of the survey

Subscribe to Get Weekly updates

Get daily current affair video, detailed current affairs PPT for quick revision and Free One Liner PDF directly in your inbox. Subscribe now to get this month's one liner for FREE.