A device used to switch electrical current at a selectable setpoint temperature.

Real Time Kinematic GPS

An instrument which measures the scattering function of particles suspended in a medium in order to determine the visual range through the medium. See visibility meter.

The electromotive force generated in a circuit containing two dissimilar metals when one junction is at a temperature different from that of the other. see also thermocouple.

Coastal Trade limit service in Sarawak.

Any twelve-month period, usually selected to begin and end during a relative dry season. Used a basis for processing streamflow and other hydrologic data. The period from October 1 to September 30 is widely used in the U.S.

A mercury barometer which measures atmospheric pressure by weighing the mercury in the column or cistern.

A list of navigational lights arranged in geographical order, giving the position and characteristics.

The wheeling of electric power in amounts and at prices that generally have been negotiated in longterm contracts between the generator and a distributor or very large consumer of power.

A short piece of rope secured in the bow of a small boat used for making her fast.

Gross Tons

A prisoner sold in the slave market. He was forced to serve in the war galleys, where he pulled on one of the oars.

The arithmetic wind speed over a specified time period and height above the ground (the majority of U.S. National Weather Service anemometers are at 20 feet (6.1 meters).

The maximum instantaneous wind speed (or velocity) that occurs within a specific period of time or interval.

Forty Foot Equivalent Units (Containers).

Direction from which the wind is blowing; an unsailable sector between close hauled headings.

A person inexperienced with or uncomfortable around boats.

A winch, frequently unpowered, having rope storage capacity and used for topping and lowering a derrick boom while the boom is unloaded and for supporting it while it is supporting a load.

A hydropower plant that is operated at maximum allowable capacity for part of the day and is either shut down for the remainder of the time or operated at minimal capacity level.

Flow of air under specific conditions required at a particular point.