Hypocritical smile, or sneer.

A pulpit located on the stern.

To change the course of a sailing vessel.

To enter a port or harbor

To leave port.

Passenger Vessel Association.

Passenger Vessel Operator.

Prince William Sound

Ports and Waterways Safety Act.

Per Weather Working Day

An instrument for recording global solar radiation.

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

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

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

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

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.

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 ...

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