To change the course of a sailing vessel.

Category:Sea Words

To enter a port or harbor

Category:Sea Words

To leave port.

Category:Sea Words

PVA

Passenger Vessel Association.

Category:Abbreviations

PVO

Passenger Vessel Operator.

Category:Abbreviations

PWS

Prince William Sound

Category:Abbreviations

Ports and Waterways Safety Act.

Category:Abbreviations

Per Weather Working Day

Category:Abbreviations

An instrument for recording global solar radiation.

Category:Meteorology

A device used to measure total incident solar radiation (direct beam, diffuse, and reflected radiation) per unit time per unit area.

Category:Energy Terms

An instrument which measures combined direct solar radiation and diffuse sky radiation. See pyrheliometer, Robitzsch actinograph. solarimeter. See also albedometer.

Category:Meteorology

An instrument which measures the effective terrestrial radiation. See Angstrom pyrgeometer.

Category:Meteorology

A device that measures the intensity of direct beam solar radiation.

Category:Energy Terms

An instrument for measuring the intensity of direct solar radiation at normal incidence. See Angstrom compensation pyrheliometer, Eppley pyrheliometer, Michaelson actinograph. silver- disc pyrheliometer, spectropyrheliometer, waterflow pyrheliometer.

Category:Meteorology

The transformation on a compound or material into one or more substances by heat alone (without oxidation). Often called destructive distillation. Pyrolysis of biomass is the thermal degradation of the material in the absence of reacting gases, and occus ...

Category:Energy Terms

An instrument for the measurement of both solar and terrestrial radiation.

Category:Meteorology