Deep Ocean Mission.

Q. What is the news?
A. The Government has informed in the Rajya Sabha that Deep Ocean Mission (DOM) will be implemented at a total budget of Rs. 4077 Cr for 5 years. And all the components of the mission will commence in 2021. 

Q. What is this Mission about?
A. The focus of the mission will be on deep-sea mining, ocean climate change advisory services, underwater vehicles and underwater robotics related technologies.

• The Ministry of Earth Sciences (MoES) will be the nodal Ministry implementing this multi-institutional mission.  

Q. What are key Components of the mission?
A. 

1. A manned submersible will be developed to carry three people to a depth of 6,000 metres in the ocean with a suite of scientific sensors and tools. An Integrated Mining System will be developed for mining polymetallic nodules at those depths in the central Indian Ocean. 
2. Development of Ocean Climate Change Advisory Services. 
3. Development of a component for searching deep sea flora and fauna, including microbes, and studying ways to sustainably utilise them. 
4. It will also have a component to explore and identify potential sources of hydrothermal minerals that are sources of precious metals formed from the earth’s crust along the Indian Ocean mid-oceanic ridges. 
5. It has a component for studying and preparing detailed engineering design for offshore Ocean Thermal Energy Conversion (OTEC) powered desalination plants. 

Q. What is the Significance of it?
A. 

• The mission will give a boost to efforts to explore India’s vast Exclusive Economic Zone and Continental Shelf.
• The plan will enable India to develop capabilities to exploit resources in the Central Indian Ocean Basin (CIOB).

Q. What are PMN?

A. Polymetallic nodules (also known as manganese nodules) are potato-shaped, largely porous nodules found in abundance carpeting the sea floor of world oceans in deep sea.

Composition: Besides manganese and iron, they contain nickel, copper, cobalt, lead, molybdenum, cadmium, vanadium, titanium, of which nickel, cobalt and copper are considered to be of economic and strategic importance.