The research vessel Geomari (MMSI: 230985210) is an aluminium-body catamaran built in 2003 by Mobimar Oy under a joint agreement of GTK and the Finnish Naval Research Institute. The r/v Geomari is mainly used for joint projects of GTK and the Finnish Navy involving seafloor mapping and research of Baltic Sea environmental conditions. The vessel is designed for operating in domestic waters in the region III traffic area, which includes open sea. The Geomari design takes into account the needs of seafloor mapping and operation in very shallow waters.
The Geomari measures 20 metres in length, 7.6m across and has a displacement of 0.9 m. The 75-deadweight-ton ship is equipped with dual 700 hp (522 kW) Caterpillar diesel engines to power a waterjet propulsion system. Operating at its top cruising speed of 20 knots, the ship has an operating range about 350 nautical miles. The normal operating speed is about 4 knots. The Geomari bunks six persons.
Outfitted for multiple research tasks, the ship’s research instrumentation centre is located on the command deck. Geomari has open stern (40m2) equipped with hoists, as well as space for survey equipments, sediment sampling and winches. The ship has seismic signal equipment (ELMA 250-1300 Hz), a Klein 595 Sidescan Sonar (100/500 kHz), research sonar probe (MD 28 kHz) and multibeam sonar (Atlas Fansweep 20 200 kHz) as well as bottom sediment sampling equipments. The ship also includes a wet laboratory that can be configured and equipped to support a wide range of studies.
More Information: Head of Unit, Marine Geology Jyrki Rantataro, e-mail: jyrki.rantatarogtk.fi, tel. +358 29 503 2493