The scientific research vessel "Vėjūnas" was constructed in the shipyard of Nasva (Estonia), in the beginning of 2012. The modern low draft vessel, which is 24 m length, is adapted to multidisciplinary marine research in the Baltic Sea and the Curonian Lagoon.
The scientific research vessel "Vėjūnas"
„Vėjūnas“ is equipped with the latest research facility (CTD probe, ADCP current meter, integrated sampling system, Van Veen grab, corer, side scan sonar, echo sounder, remotely operated vehicle (ROV)), which is necessary to perform national monitoring program of the Baltic Sea and the Curonian Lagoon. Two cranes are installed on the deck, which are specialized in drawing down measurement devices. The hydraulic crane is equipped in the research vessel as well and is used for the Van Veen grab and the corer to lower into the water.
The CTD probe is the primary tool for determining essential physical and biological properties of sea water. It is used to measure three main state variables: conductivity, temperature, and depth. An Acoustic Doppler Current Profiler (ADCP) is a hydro acoustic current meter. The instrument is used to measure water current velocity and direction across an entire water column. An integrated sampling system designed for the phytoplankton researches automatically collects water samples from different water layers. The Van Veen grab is used for the sediments and benthic samples taking from the bottom surface, while the corer extracts samples from the deeper sediment layers. There are the echo sounder and side scan sonar installed in the research vessel “Vėjūnas“. The echo sounder measures depth of the sea floor by sending pressure waves down from the surface and recording the time until the echo returns from the bottom. And the side scan sonar efficiently creates an image of large areas (minimum – 50 m, maximum – 400 m from both sides) of the sea floor. The remotely operated underwater vehicle RB Mini “MIRAGE” is highly maneuverable underwater robot which is operated by a person aboard a surface vessel. The vehicle is equipped with a high definition video camera and lights. RB Mini “MIRAGE” robot can be used to film the surface of the bottom in the Baltic Sea and the Curonian Lagoon.
Meteorological station is available in the research vessel which measures air temperature, wind speed and direction, atmospheric pressure, humidity and sun radiation. All meteorological data comes into the laboratory of hydrology.
There are two laboratories: hydrological and chemical-biological. In the hydrological laboratory there is installed computer equipment and the data from CTD, ADCP, echo sounder, meteorological station, side scan sonar comes here. In the chemical-biological laboratory there are integrated gravitation cupboard, refrigerators and freezers for storage of samples during the expeditions.
The autonomy of the ship sailing is up to 3 days, therefore the crew members are provided with comfortable conditions. ”Vėjūnas“ is equipped with 5 rooms, four is for crew members and one for captain.
The expedition launch “Marinis” has been purchased in 2010. Marinis has been used for monitoring purposes in the Curonian lagoon and the Baltic Sea coastline as well. Furthermore, there is a winch installed.
The expedition cutter “Marinis”
The scientific research vessel "Vėjūnas" and The expedition cutter “Marinis” technical specifications
|SRV „Vėjūnas“||Expedition cutter „Marinis“|
|Year of construction||2012 m.||2010 m.|
|Water capacity||424 m3||3 m3|
|Length||23,90 m||8,30 m|
|Width||8 m||2,93 m|
|Draft||1,30 m||0,88 m|
|Average speed||11 knots||20 knots|
|Number of crew||5||1|
|Autonomy||3 days||1 day|
|Work area||Baltic sea territorial waters, Curonian Lagoon||Curonian Lagoon, Baltic Sea coastline|