Sign In
Learn bits
Defence & Security
Pradeep Kumar

05/06/21 09:00 AM IST

INS Sandhayak Decommissioned

In news

INS Sandhayak, the Indian Navy's oldest Hydrographic Survey Vessel was decommissioned at Naval Dockyard in Visakhapatnam after serving the nation for 40 glorious years 

Service
  • During her 40 years of illustrious service in the Indian Navy, INS Sandhayak undertook over 200 major hydrographic surveys in Western and Eastern coasts of the Indian peninsula, the Andaman Sea, and surveys in neighbouring countries including Sri Lanka, Myanmar and Bangladesh. 
  • The ship also took part in important operations like  Op Pawan in Sri Lanka, 1987, Op Rainbow for Humanitarian Assistance in the aftermath of the Tsunami in 2004 and the maiden Indo-US HADR Exercise Tiger-Triumph in 2019.
Hydrographic survey
  • Hydrography is the science that measures and describes the physical features of the navigable portion of the Earth's surface and adjoining coastal areas. Hydrographic surveyors study these bodies of water to see what the "floor" looks like. 
  • By mapping out water depth, the shape of the seafloor and coastline, the location of possible obstructions and physical features of water bodies, hydrography helps to keep our maritime transportation system moving safely and efficiently.
  • Multibeam echo sounder beams sweep the seafloor as the ship passes over the survey area.
  • Multibeam echo sounder beams bounce off the seafloor and return to the ship where the depth is recorded.
Source: Indian Express, PIB

More Related Current Affairs View All

23 Sep

Quad grouping

'Prime Minister Narendra Modi arrived in the United States, where he will participate in the fourth Quad Leaders Summit in Wilmington, Delaware.' Quad s the grouping of four de

Read More

21 Sep

India Achieves Tier 1 Status in Global Cybersecurity Index 2024

' India has secured Tier 1 status in the Global Cybersecurity Index (GCI) 2024, published by the International Telecommunication Union (ITU).' The GCI is a comprehensive assessm

Read More

21 Sep

A new White Revolution

'Operation Flood, launched in 1970, ushered in the White Revolution and transformed the dairy sector in India.' Dairy cooperatives procured 660 lakh kg of milk per day in 2023-2

Read More

India’s First Ai-Driven Magazine Generator

Generate Your Custom Current Affairs Magazine using our AI in just 3 steps