PLB - Personal Locator Beacon
Category: - Maritime - Risk - Acronym

Plimsoll Mark - A mark placed on the ship's side to indicate maximum allowable draft.
Category: - Maritime

POB - Persons On Board
Category: - Maritime - Risk - Acronym

POC - Probability Of Containment: The probability that the search object is contained within the boundaries of a region, segment, or other geographic area. Regional POCs are generally determined by consensus and scenario analysis. Segment POCs may be computed from regional probability densities and segment areas.
Category: - Maritime - Risk - Acronym - SAR

POD - Probability Of Detection: The percentage of probability that if a subject was actually in the search area that the subject would have been located (detected) by the search effort.
Category: - Maritime - Risk - Acronym - SAR

Point - A zero dimensional map feature, such as a single elevation mark as specified by at least two coordinates.
Category: - GIS

Point Feature - A geographic feature recorded on a map as a location. Example: a single house.
Category: - GIS

Polygon - A many-sided area feature consisting of a ring and an interior. An example is a lake on a map.
Category: - GIS

Poop - The after, upper portion of the hull, often containing the steering gear.
Category: - Maritime

Poop Deck - The first deck above the shelter deck at after end of a vessel.
Category: - Maritime

Port - A harbor; or an opening in the side of a ship; or the left hand side of a ship (looking toward the bow.), originally called larboard, usually marked by a red light
Category: - Maritime

Porthole - A circular opening in the ship's side such as a window (see airport).
Category: - Maritime

Prediction - The ability of a model to provide information beyond that for which measurements are available.
Category: - GIS

Prediction - The scientific ability to forecast the outcome of a process in advance.
Category: - GIS

Prevailing Winds - The wind direction most frequently observed during a given period.
Category: - Weather

Primary Search And Rescue Resources - Federal search and rescue (SAR) aircraft and vessels, including those multi-tasked to SAR, established and equipped specifically for SAR with SAR trained crews aboard. Primary SAR resources are under the direct operational control of the Search and Rescue Region Commander for SAR taskings. "ressources primaires de recherche et sauvetage"
Category: - SAR

Probability - A measure (expressed as a percentage or ratio) of estimation of the chance of occurrence
Category: - Risk

Probability Of Precipitation - Probability forecasts are subjective estimates of the chances of encountering measurable precipitation at some time during the forecast period. Measurable means at least 0.2 mm of rain or the water equivalent of snow. For example, a 40% probability of rain today means there are 4 chances in 10 that it will rain.
Category: - Weather

Product Carrier - A tanker which is generally below 70,000 deadweight tons and used to carry refined oil products from the refinery to the consumer. In many cases, four different grades of oil can be handled simultaneously.
Category: - Maritime

Propane Carrier - A ship designed to carry propane in liquid form. The propane is carried in tanks within the holds; it remains in liquid form by means of pressure and refrigeration. Such ships are also suitable for the carriage of butane.
Category: - Maritime