Glossary Archive

The Ocean Data Acquisition System (ODAS) is a system used to collect, process, and transmit various types of oceanographic data. This system typically includes a network of sensors, instruments, and data loggers deployed in the ocean to measure parameters such as temperature, salinity, currents, waves, and other environmental conditions. The data collected by the ODAS...

The designated officer responsible for the safe navigation and operation of a vessel during their assigned watch period.  The Officer of the Watch (OOW) is a key role on a vessel, ensuring the ship's safe passage and adherence to regulations while on duty. The OOW is responsible for maintaining a proper lookout, monitoring navigational equipment,...

Wind blowing away from the land or “being at sea”

The Offshore Personal Survival course is an intensive program designed for sailors participating in offshore and ocean races. Participants learn life-saving techniques, including life raft drills, survival swimming, and handling emergencies in rough seas. The course also covers equipment checks, distress signaling, and personal preparation for extreme conditions. Recognized by World Sailing, this course is...

Waterproof clothing worn in foul weather

Flag semaphore indicating the letter O.

International Morse Code sequence representing the letter O.

Wind blowing towards the land or “not at sea”.

Ahead of a vessel at an angle to the bows, but forward of the beam, to the left

At an angle to the stern of your vessel, but abaft the beam, to the left