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COASTAL RESEARCH VESSELS
M.V. Sagar Purvi and M.V. Sagar Paschmi

NATIONAL INSTITUTE OF OCEAN TECHNOLOGY

(Department of Ocean Development, Govt. of India)

 

Department of Ocean Development

The Department of Ocean Development (DOD) has acquired two Coastal Research Vessels M.V. Sagar Purvi and M.V. Sagar Paschmi. The research vessels form a part of the fleet of four Oceanographic research vessels that the Department owns. The Vessels M.V. Sagar Purvi and M.V. Sagar Paschmi are mainly intended for coastal oceanographic work . They are being managed by the National Institute of Ocean Technology (NIOT) through a Vessel Management Cell (VMC).

The vessel Sagar Purvi was commissioned in December 1996, and the vessel Sagar Paschmi in November 1996. The vessels have been specially designed by National Ship Design Research Centre, (NSDRC) Vizag for coastal oceanographic work. With an overall length of 30 m and a low draft of 1.8m, they are very ideal for coastal oceanographic work. Both the vessels are identical and have an accommodation for six scientists onboard and an endurance of 10 days. The vessels have fully air conditioned accommodation and laboratories.

The new vessels will be mainly deployed for the coastal pollution monitoring work, coastal surveys, and near shore multidisciplinary work. The ship has been built in conformity with the class requirements of Indian Register of Shipping (IRS). The vessel is propelled by twin controllable pitch propellers (CPP) run by diesel engines. For life saving and survey there is an inflatable rubber boat propelled by an outboard motor and an inflatable life raft.

Navigation and Communication

The vessels have Global Positioning System (GPS), Gyro compass, Magnetic compass, Radar, Navigation Echosounder, etc. for navigation purpose. The vessels fully comply with the GMDSS requirements and are provided with Inmarsat terminals with EGC receivers for telephone, fax, and telex, SSB RT, and VHF for communication from ship to shore. The vessels are fitted with EPIRB, SART and fire alarm system for safety at sea and internal telephone system for effective communication between Labs, cabins and bridge.

 

Deck machinery

The vessel has three SEAMAC winches to facilitate scientific work with automatic winding mechanism and a digital meter wheel for the amount of wire paid out. The winches have SS wire 4 mm for water sampling, 9 mm PVC coated wire for uncontaminated sampling and 8 mm steel wire rope for sediment sampling, coring and CTD profiler operations. Two manually operated derrick and foldable platforms on both sides of the vessel facilitate over the side operations of sampling. An Electrohydraulic twin drum winch capable of handling fish trawl nets and plankton nets over an 'A' frame structure is provided in the aft.

Laboratories

The vessels have two laboratories for sample analysis and preservation. The dry laboratory with an area of 15 m2 is situated on the main deck. This is mainly used for sample analysis for nutrients, chlorophyll studies, Bacterial studies etc. The lab has Auto Analyzer, Spectrophotometer, Spectroflourometer, Clean work bench, Water purification plant, Zoom stereo microscope, Incubator etc. for onboard analysis of samples collected and a computer for preparation of reports and interface to the equipments is also provided.

The wet laboratory which is situated adjoining the forward working deck has an area of 12 m2 and has an watertight opening towards the working deck in order to take the samples collected from the deck directly in to the lab and communicate with the working crew on the deck. The lab has Filtration equipments, centrifuge, Autoclave, auto titrator, pH meter, Fume chamber, etc. for onboard analysis.

The vessel is equipped with CTD profiler capable of profiling temperature, salinity and dissolved Oxygen up to 600 meters, Niskin water samplers, S.S.Vanveen grab for surface sediments, Gravity corer to collect core up to 1.8 m,

Plankton net with a digital flow meter for plankton studies, Trawl net for sample fish catch, Single beam Echosounder for accurate bathymetry survey. The vessels are fitted with an Automatic weather station for continuous recording of meteorological parameters like wind speed, direction, humidity, solar radiation and temperature etc., Apart from the above routine weather facsimile and weather messages transmitted can be received on board.

A multibeam swath Bathymetry system has been installed on CRV Sagar Purvi which is capable of covering a large area in a single pass and generates three dimensional gridded maps and contour maps of surveyed area. The coverage is seven times the depth of area surveyed and this is a shallow water swath survey system. The system is side mounted and is interchangeable between both the vessels.

Main particulars

Length overall : 30 m Generator power : 2 x 105 kW.

Length b.p. : Speed : 8 Knots

Breadth overall : 6 m Fresh water capacity : ton

Draft : 1.8 m Fuel oil capacity : 17 KL

Gross tonnage : Propulsion : C.P.P.

Engine output : Endurance : 10 days

Accommodation : Scientific : 6+1

Crew : 11


For further information please contact

Executive Director Dr.B.R.Subramanian,

N.I.O.T., Director

IC & SR building, D.O.D.,

IIT Campus, Chennai 600036. Mahasagar Bhavan,

Phone : +91-44-2353683 Phone : +91-11-4361510

Fax : +91-44-2353686 Fax: +91-11-

Email : niot@niot.ernet.in Email : brs@alpha.nic.in

OCEANIC - Ships Schedules & Information Pages
University of Delaware, College of Marine Studies
Lewes, Delaware  19958
Phone:  (302) 645-4225
Email:  ships@researchvessels.org