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First Expedition of International Indian Ocean Expedition (IIOE) – 2

New Delhi, December 26 (G’nY News Service): The First International Indian Ocean Expedition-2 ‘IIOE-2’onboard Research Vessel Sagar Nidhi was conducted between 4th – 22nd December 2015. It started at Goa and concluded in Mauritius after exploring the western Arabian Sea for 18 days. The voyage was flagged off by the Hon. Minister of State for Science and Technology and Ministry of Earth Sciences, Mr. Y. S. Choudhary at a function held at Mormugao, Goa on 4th December 2015.

1st Indian Scientific Expedition to South Pole 2010-2011

The expedition was led by Prof. P. N. Vinayachandran of Indian Institute of Science (IISc), Bangalore and Dr. Satya Prakash of ESSO-Indian National Centre for Ocean Information Services (ESSO-INCOIS), Hyderabad. 12 Indian Scientists participated representing IISc, INCOIS, NIOT (Chennai), NCAOR (Goa), NRSC (Hyderabad) and Goa University. In addition to scientists from India, there were participants from Mauritius, Israel, Singapore, Australia, and the UK.

Mining of polymetallic nodules in the Indian Ocean

The major goal of this multi-disciplinary scientific expedition was to understand the structure of water masses in the western Indian Ocean along 67°E and assess the difference in their characteristics with respect to observations made in the past. The other objective of the cruise was to understand the physical-chemical-biological characteristics in the equatorial Indian Ocean and their inter-relationships. Underwater profiles of currents, temperature, salinity, oxygen, light, and chlorophyll were measured during the cruise. In addition, samples have been collected to a depth of 1000 m for various chemical and biological analyses. Samples of zooplankton were collected using nets towed from the stern of the ship.

 

It is expected that the data collected during this expedition will elucidate the currents and water masses in the western Indian Ocean in detail and thus further our understanding of the oceanography of the Indian Ocean.

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