Research Vessel OverviewR/V EARDO
Eardo (usually anglicized as Ieodo)” is the Korean name for a submerged rock, known internationally as Socotra Rock, located in the middle of the East China Sea. It is also known as a mythical island, or a land of enlightenment, in the legends of Jeju Island. KIOST named its research vessel Eardo based on its hope of using the vessel to advance the status of the nation’s ocean science and improving the lives of all Koreans.
Built by Korea Tacoma Marine Industries (currently Hanjin Heavy Industries & Construction), RV Eardo is a 357-ton vessel that set sail for the first time in March 1992. Originally, it was the mothership of the manned submersible Haeyang 250, and after it was decommissioned, it became a research vessel dedicated to the study of Korea’s coastal waters.
Main Projects
- Support and development of offshore minerals in the Southwest Pacific and Indian Ocean
- Precise investigation of offshore minerals in the Exclusive Economic Zones
- Research on the impact of the Northwest Pacific Ocean on the seas surrounding the Korean Peninsula
Contact Information
- Fax001-870-7831-11984
- Port0130-510-1518
- Mobile010-3577-1518
- E-maileardo@sea-one.com
inmarsat
- 001-870-7731-10925
R/V EardoVessel Information
- Full length 48.98m
- Width 8.6m
- International gross tonnage 357t
- Speed 12.00 knots
- Range 50,000miles
- Passenger capacity 30Researcher 17, Crewman 13
R/V EardoNavigation and Communication Equipment
A device that detects objects by emitting radio waves and receiving the waves reflected back from them.
A device mounted on most modern ships that is used to calculate water depth. A sound wave transmitter and receiver are installed at the center of the vessel at its bottom to measure the time it takes for an ultrasonic wave (travelling at 1.5 kilometers per second) to leave the source, bounce off the ocean floor, and return to the receiver. This time is recorded by a device on the bridge. After taking the waterline length into consideration, measuring the distance with a ruler provides an accurate water depth. A sounder can measure water depth on a continuous basis.
Three satellite navigation devices (MX200, FURUNO-GP32, and GPS PLOTTER-MGP-15 (SHIN-A)) A system developed by the U.S. Department of Defense. Using NAVSTAR GPS satellites, the system is capable of locating vessels at sea in any part of the world and at all times based on the prompt processing of observational data and three-dimensional coordinates on a WGS84 projection system. It is an all-weather global positioning system that provides highly accurate locational information (margin of error of plus or minus 100 milimeters).
ANEMOMETER (DAEYANG, Korea)A device that measures the direction of the wind blowing toward the observer and the horizontal wind speed.
A room for researchers and crew to get regular exercise so as to maintain good health while on the vessel.
One NAVIPOL unit (C. Plath)An instrument that displays the direction of a vessel relative to the cardinal directions during navigation.
One NAVIPGAT unit (C. Plath)An instrument similar to a magnetic compass that displays the direction of a vessel relative to the cardinal directions during navigation.
One NAVIPILOT unit (C. Plath)A system that uses a magnetic compass and gyrocompass to detect the angular velocity of a vessel and the angle at which it is deviating from its plotted course and makes steering adjustments automatically to keep the vessel on course.
One NAVIPGAT unit (C. Plath)This is a satellite communication technology that is currently in use in various fields. It is now being prepared for use in emergency communication situations, such as the rescue of ships in distress at sea. This system will revolutionize offshore communication systems by integrating satellite broadcasting, digital communication, radiophone, and radiotelex into existing offshore and onshore communication systems.
R/V EardoResearch Equipment
A device that collects, records, stores, and displays real-time weather information necessary for research and navigation.
A basic device mounted on the research vessel that continuously observes the surface temperature, salinity, and sound velocity of the water while the research vessel is in motion. The thermosalinograph is installed in the bow thruster room, and a remote water temperature sensor has been mounted on the seawater inflow line, increasing the reliability of the data collected.
A comprehensive oceanographic observation device designed to measure the basic physical parameters of conductivity, temperature, and depth. The device transforms analog signals from CTD sensors into digital data and uses single-conductor CTD cables to read and store the data in real time on the research vessel. Optional sensors, such as a transmissometer, fluorometer, PAR (irradiance) sensor, or altimeter, may also be mounted on the device, which collects seawater samples in 24 10-liter Niskin bottles.
A sensor that provides real-time measurements of the sound velocity of the water surface on a moving or stationary vessel using the EM710 Multibeam Echo Sounder.
A device that measures the sound velocity of each water layer and stores the data, which can then be downloaded to a computer using dedicated software. Acquired data are processed and used to facilitate the movement of devices that use sound waves, such as multibeam and other types of echo sounders.
A device that measures the velocity and volume of ocean currents over a range of depths using the fact that changes occur in the frequency of a sound wave produced by a moving source, known as the Doppler effect. The profiler operates at the frequency bands of 38 kilohertz and 150 kilohertz, which are effective at depths of up to 1,000 and 400 meters, respectively.
A device that emits and receives sound waves in order to accurately calculate the distance to the ocean floor.
A device used for correcting the various sound sensors installed on the bottom of the research vessel. While in motion, the research vessel lowers a probe into the water to measure the sound velocity at different depths and correct each sound device. XBT is composed of a probe, launcher, data acquisition and processing devices, and controller.
A device that emits sound waves from a vessel and receives the sound waves that are bounced back from the seabed as a means of observing and recording water depth and the landscape of the seabed. Unlike existing echo sounders, which can take measurements at only a single location immediately below the vessel, the device produces a swath of depth measurements and readings within the sound wave emission and reception range of the device. The information collected by the multibeam echo sounder is transmitted to a computer onboard the vessel, which then produces a bathymetric map or a contour map with relevant colors and graphics in real time. The data gained from each ping is separated into different types of information, and the device can take measurements at a maximum depth of 2,000 meters underwater.
A device for acquiring high-resolution images and data on multiple layers of sediment and rocks under the seafloor. The profiler emits sound waves with the frequency range of two to seven kilohertz, processes the signal reflected back from the ocean floor and sub-bottom layers of the ocean floor, and provides information on the strata of the ocean floor. This device is especially useful for surveying sub-bottom layers of the ocean floor in preparation for the construction of cross-sea bridges and offshore structures and the installation of submarine cables.
A GPS and positioning system that provides accurate, real-time location information for the research vessel and the mounted research equipment it operates. It also corrects the attitude data of the vessel. For higher accuracy, the device uses DGPS (Differential Global Positioning System), based on which it receives GPS signals from satellites as well as signals from ground-based reference stations through beacon receivers that allow for the correction of positioning errors. The Seapath 200 system installed on the RV Onnuri receives signals not only from ground-based reference stations but also from satellite reference stations, allowing the crew to minimize navigation errors when cruising in the ocean.
A device that receives location information from ground-based reference stations around the world through DGPS antennas and then provides the GPS data necessary for the operation of research equipment.
A device that measures the vessel’s roll, pitch, and heave and provides attitude information necessary for the operation of research equipment.
A GPS system that accurately locates the position of the vessel and the mounted device. Ground-based reference stations transmit DGPS corrections for higher navigation accuracy.
R/V EardoResearch Support Equipment
A device used with large instruments and devices to collect benthic organisms and mineral resources.
A winch attached to an armored single-conductor CTD cable (6,000 meters), used when lowering and raising the CTD from the ship to the seabed.
A device used for lowering and raising various equipment needed for experiments to and from the seabed.
An instrument used for launching a submersible or retrieving a damaged submersible.
An ancillary device used when lowering the CTD Underwater Unit.
A device used for loading and unloading workboats, equipment for experiments, and supplies.
A small boat used to facilitate the work of researchers.
R/V EardoResearch Room
A room for researchers to conduct research.
A room for researchers to perform experiments related to their research.
R/V EardoAccommodation Facilities
A room for researchers and crew to hold meetings and conferences.
Accommodation for senior researchers on the vessel.
Accommodation for the captain of the research vessel.
A place where the researchers and crew have meals.
Research Vessel
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- Last Update : 2022-09-05