Glossary

Maritime glossary, terms beginning with P (page 6)

All maritime glossary terms that begin with the letter P, drawn from every subject section. 2685 entries.

Showing 250 of 2685 terms (page 6 of 11).

Plate Slenderness X54. Naval Architecture Software and IACS Rules: Ratio governing plate panel buckling capacity in CSR-BC+OT Chapter 8.
Plate Tectonics D2. Hydrography, tides, waves, bathymetry and marine geology: Theory describing lithospheric plate motion and interactions.
Plate thickness (PC) X27. Polar Code, Ice Navigation and Polar Operations: Hull plating thickness determined by IACS UR I formulas including ice load.
Plate Thickness Diminution X54. Naval Architecture Software and IACS Rules: In-service wastage limit triggering steel renewal under IACS UR Z10.
Plate Trailer X104. Project Cargo Forwarders and Heavy Transport: Trailer with a heavy steel deck designed for plate, coil, and slab cargo.
Plate Warmer X120. Marine Catering, Provisions and Ship Chandlers: IMPA 174440 hot cupboard, mess room service unit.
Plate yard X58. Shipbuilding Yards and Construction: Outdoor storage area holding stock steel plate before processing.
Plate, hull X58. Shipbuilding Yards and Construction: Steel sheet rolled and welded to form the ship's shell.
Plate, lashing X76. Stevedoring, Lashing and Cargo Securing: See lashing plate.
Platform Twin-ring Containerized (PTC) X104. Project Cargo Forwarders and Heavy Transport: Mammoet platform ring crane family including the PTC 200-DS.
PLATH GP X89. ECDIS and Bridge Equipment Makers: Course recorder produced by C. Plath of Hamburg.
Plath Hamburg X89. ECDIS and Bridge Equipment Makers: Historical maker of sextants and magnetic compasses, brand continued under Cassens and Plath.
Plating Clause X4. Marine Insurance, P&I and Claims: hull clause regarding renewal of plating wastage.
Platinized Titanium Anode X100. Marine Cathodic Protection and Anodes: A titanium anode coated with a thin platinum layer used as an inert anode in some marine ICCP installations.
Platts X71. Shipbrokers and Brokerage Firms: S&P Global Platts, commodity pricing service informing tanker and dry chartering decisions.
Platts Bunkerwire X44. Shipping Indices, FFAs and Freight Markets: Bunker fuel price assessment series widely used as the reference for cleared bunker swaps.
Playbook X107. Maritime Cybersecurity and OT Security: Documented sequence of response actions for a defined incident scenario.
PLB X23. AIS, GMDSS, IALA Buoyage and Aids to Navigation: Personal Locator Beacon transmitting on 406 MHz Cospas-Sarsat; not GMDSS equipment.
PLC X19. Engine Room Watchkeeping and UMS Operations: Programmable logic controller, foundation of modern marine automation.
PLC Programmable Logic Controller X25. Maritime Cybersecurity, OT and IT: Industrial controller used in engine room, cargo and ballast systems.
Pleading X114. Maritime Arbitration and Shipping Law Firms: Statement of case in arbitration, governed by the procedural orders of the tribunal.
Pleadings (LMAA) X51. Maritime Arbitration, Law and BIMCO Clauses: The successive written submissions, identified as Claim Submissions, Defence Submissions, and Reply.
Pleadings-only award X152. Maritime Arbitration and Dispute Resolution: Award rendered without oral hearing, frequent under LMAA Small Claims Procedure and Intermediate Claims Procedure.
Pleasure yacht X125. Superyacht Industry, Builders and Brokers: Yacht used solely for the owner's personal enjoyment, with reduced class requirements compared to commercial yachts.
Pledge of Shares X49. Ship Finance, Leasing and Maritime Capital Markets: Security over the shares in a vessel owning subsidiary granted to the lender.
Pleiades X124. Dredging Industry and Reclamation Contractors: NMDC TSHD.
PLEM X14. Offshore Oil and Gas Marine Operations: Pipeline end manifold.
Plenum X26. Reefer Containers and Cold Chain Logistics: Air distribution space above cargo and below ceiling, fed by supply duct.
Pleopod X10. Marine Biology, Fisheries and Oceanography: Abdominal appendage of decapod crustaceans used for swimming and brooding eggs.
PLET X14. Offshore Oil and Gas Marine Operations: Pipeline end termination; subsea structure terminating a pipeline.
Pleuston X10. Marine Biology, Fisheries and Oceanography: Organisms living at the air-water interface.
PLH X130. National Coast Guards and Cutter Fleets: Japan Coast Guard hull prefix for Patrol Vessel Large with Helicopter, including PLH-31 Shikishima.
PLI X73. Marine Hydrography, Charting and ENC: Position, Length and Identity, a fundamental object key triple in ENCs.
Plimsoll Brattvaag X79. Tugs and Towage Industry: Historical naming combination referring to Brattvaag deck machinery brand.
Plimsoll Line F5. The Reference Layer: Glossary, Units, Signals and Information Sources: Load-line mark on the hull side, named after Samuel Plimsoll.
Plimsoll mark C1. Commercial shipping, chartering, economics and finance: Load line marking on ship side.
Plimsoll Mark Verification X5. Marine Surveying and Inspection: Inspection of load line marks and disc.
Plimsoll, Pilot X159. Marine Pilotage, Pilot Districts, and Pilots' Associations: Informal term for the maximum ladder length determined by freeboard, not related to the load line.
Plimsoll, Samuel X39. Pre-1900 Maritime History: British member of Parliament whose campaigning led to the load line requirement in the UK Merchant Shipping Act of 1876.
Plio Class X153. Offshore Drilling Rigs, FPSOs, and Offshore Vessels: Generic semisubmersible accommodation unit class operated by floatel providers.
Plot X16. Nautical Science, Navigation and COLREGs: Graphical representation of vessel movement.
Plot Allocation X28. Ship Recycling and End-of-Life: Assignment of a beaching plot by the maritime board to a yard for a given vessel.
Plot Inspection Cycle, Alang X50. Ship Recycling, Demolition and Hong Kong Convention: The Gujarat Maritime Board attendance schedule for yard inspections under the Recycling of Ships Act 2019.
Plot Layout Plan, Yard X50. Ship Recycling, Demolition and Hong Kong Convention: The drawing depicting impermeable cutting areas, storage, and waste handling installations required under MEPC.211(63).
Plot Number System (Gadani) X118. Ship Recycling Yards, Beaches and Regulation: Numerical plot system at Gadani administered by the Balochistan Ports and Shipping Department, with plots numbered roughly 1 to 132.
Plot operator X147. Ship Recycling, Hong Kong Convention, and Recycling Yards: The specific commercial entity holding a license to recycle ships on a numbered Alang, Gadani, or Chattogram plot.
Plot Sheet X80. Maritime Search and Rescue Coordination: Tabular and graphic display of search progress maintained by SMC.
Plotter Sheet X73. Marine Hydrography, Charting and ENC: A pre-printed blank chart used for manual position plotting in passage planning training.
Plotting sheet X16. Nautical Science, Navigation and COLREGs: Sheet with latitude and longitude grid for plotting positions.
Plough X42. Offshore Wind Installation and Cable Lay: Towed seabed implement creating a trench for simultaneous cable burial during lay.
Plough Anchor X173. Mooring, Anchoring, OCIMF MEG4, and Equipment Numeral: Generic class of anchor including the CQR and Delta whose single fluke ploughs into the seabed.
Plough dredger X15. Ports, Terminals and Stevedoring: tractor-style dredger redistributing seabed material.
Plough Share X77. Naval Mine Warfare and Mine Countermeasures: A historical Royal Navy minesweeping equipment designation.
Plough Trencher X37. Marine Spatial Planning, Subsea Cables and Submarine Pipelines: Towed mechanical plough that opens a furrow on the seabed to install cables and small pipelines.
PLS X61. Marine Lubricants and Cylinder Oils: Pulse Lubrication System developed by Hans Jensen Lubricators for accurate timed cylinder oil injection.
Plug X6. Container, Intermodal and Trade Codes: Reefer power outlet at terminal, ship, or yard.
Plug and abandon X57. Ocean Energy Beyond Wind: Decommissioning procedure for offshore wells that is also applied when reusing wells for CO2 monitoring.
Plug and Abandon (P&A) X14. Offshore Oil and Gas Marine Operations: Sealing a well permanently with cement plugs.
Plug and Patch X13. Marine Salvage and Wreck Removal: Combined sealing of small holes and larger breaches before dewatering.
Plug Mode X79. Tugs and Towage Industry: Escort technique in which the tug acts as a brake at the stern of the tanker.
Plug pin twistlock X76. Stevedoring, Lashing and Cargo Securing: Twistlock variant with a plug-style retention pin, used in some terminal handling applications.
Plug Power Electrolyzer X140. Ammonia as Marine Fuel and Hydrogen Shipping: New York-based supplier for 100 MW Yara Casper Wyoming green ammonia plant.
Plug ratio X70. Reefer Containers and Cold Chain Shipping: Proportion of refrigerated containers among the total slot count on a container vessel.
Plug-in time X26. Reefer Containers and Cold Chain Logistics: Period reefer is connected and powered at terminal, depot, or vessel.
Plug-out X26. Reefer Containers and Cold Chain Logistics: Reefer disconnected, often during gate moves or hinterland transport.
Plumb X9. Cargo Securing, Lashing and Stability Vocabulary: Vertical alignment.
Plumb Mode X30. Tug Operations and Harbour Towage: Escort condition in which the tug is positioned perpendicular to the ship's track.
Plumbing Diagram X41. Cruise Ship Public Health and VSP/USPH: Schematic required onboard documenting potable, technical, gray, and black water systems for inspection.
Plumbline X122. Submarine Cable Laying, Repair Vessels and Operators: SubCom-developed bathymetric correction software for as-laid surveys.
Plume Modeling D3. Marine environmental science, pollution and conservation: Simulation of pollutant plumes in water or air.
Plummer Block X174. Marine Engine Maintenance, Overhaul, and Condition Monitoring: Intermediate shaft bearing housing in the shaft line, inspected for white-metal condition and oil-ring lubrication.
Plunger Pump X63. Marine Auxiliary Machinery and Pumps: Positive displacement pump with solid plunger reciprocating through a stationary seal, used for high-pressure duty.
Plural Component Spray X88. Marine Surface Preparation and Coatings Application: Airless application equipment that meters and mixes resin and hardener at or near the gun for fast-set coatings.
Plus Marine X100. Marine Cathodic Protection and Anodes: A commercial supplier of cathodic protection products for marine service.
Plymouth X35. Yacht and Superyacht Industry: Devon port and home of Princess Yachts.
Plymouth Marine Laboratory X57. Ocean Energy Beyond Wind: UK research institute that contributes to environmental monitoring at marine renewable sites.
Plymouth Marjon University Maritime Industries Programme X121. Maritime Education, Academies and Universities: UK provider focused on maritime business.
Plymouth University Marine and Maritime X160. Maritime Academies, Universities, and STCW Certification: University of Plymouth marine school in Devon delivering navigation, naval architecture, and ocean science degrees.
Plymouth University School of Engineering Computing and Mathematics X121. Maritime Education, Academies and Universities: University of Plymouth, founded 1862 as Plymouth School of Navigation, hosts BSc Navigation and Maritime Science and the Marine Institute.
Plywood Box (NO96) X20. LNG Operations and Custody Transfer: Birch plywood boxes filled with perlite forming the insulation layer of NO96 CCS.
Plywood Floor X83. ISO Container Manufacturing and Leasing: Tropical hardwood plywood typically 28 mm thick forming the floor of a dry container.
Plywood Sheets X1. Cargo Science, Commodities and Cargo Care: Bundled forest product; dunnage essential.
PM (Particulate Matter) A3. Marine environmental legislation: MARPOL and its annexes: Limited indirectly through sulphur limits under MARPOL Annex VI.
PMA X169. Container Terminal Cranes, Yard Equipment, and Lashing: Pacific Maritime Association, US west coast employer group whose labor agreements govern much terminal equipment operation.
Pmax Peak Cylinder Pressure X174. Marine Engine Maintenance, Overhaul, and Condition Monitoring: Maximum combustion pressure recorded from the indicator diagram, key parameter for performance balance and component loading.
PMI Colleges Manila X160. Maritime Academies, Universities, and STCW Certification: Philippine maritime education group operating colleges across Manila, Bohol, and Quezon for deck and engine ratings and officers.
PMI Compressor X20. LNG Operations and Custody Transfer: Pressure-Maintaining Inlet on reliquefaction plant balancing suction pressure to BOG generation.
PMS C2. Ship operations, crewing and technical management: Planned maintenance system.
PMS (Power Management System) X149. Marine Fuels, Bunkering, and Alternative Fuels: Not strictly a fuel term but linked to fuel selection during peak loading and cold ironing.
PMS Planned Maintenance System X174. Marine Engine Maintenance, Overhaul, and Condition Monitoring: Class-approved electronic maintenance regime tracking running hours and overhauls per OEM intervals.
PMS Pollution Monitoring Scheme X28. Ship Recycling and End-of-Life: Indian Coast Guard surveillance for spills around recycling sites.
PMS work order X19. Engine Room Watchkeeping and UMS Operations: Job card raised by the PMS system and signed off after completion.
PMSC X22. Piracy, Maritime Security and Armed Protection: Private Maritime Security Company providing PCASP under ISO 28007.
PMSC (Private Maritime Security Company) E2. Naval, defence and maritime law enforcement: PCASP provider.
PMV X124. Dredging Industry and Reclamation Contractors: Port Management Vancouver dredging contract scope.
PNA (Prefectura Naval Argentina) X163. Marine Accident Investigation Agencies and Landmark Inquiries: Argentine naval prefecture under the Ministry of Security that conducts marine casualty investigations in Argentine jurisdiction.
PNA Vessel Day Scheme (VDS) X131. Commercial Fisheries, Trawler Fleets and Seafood Processors: Parties to the Nauru Agreement scheme allocating purse-seine days in the western and central Pacific.
PNCT Port Newark Container Terminal X138. Global Container Terminal Operators and Port Equipment: Newark facility operated by Ports America, handling 1.6 million TEU in 2022.
PNEC (Predicted No Effect Concentration) D3. Marine environmental science, pollution and conservation: Threshold concentration below which no adverse effects are expected.
Pneumatic control loop B2. Marine Engineering: Air-signal control loop on legacy plant.
Pneumatic Conveyor X1. Cargo Science, Commodities and Cargo Care: Loading system for cement, fly ash, alumina.
Pneumatic Fender X79. Tugs and Towage Industry: Air-filled rubber fender, typically Yokohama-style, deployed between assisted vessel and quay.
Pneumatic Fender Yokohama X72. Bunkering Hubs and Bunker Suppliers: Air filled rubber fender used between bunker barge and receiving vessel during transfer alongside or anchor.
Pneumatic Grain Unloader X94. Port Machinery and Quay Equipment Makers: Bulk grain unloader using suction-blower principle to discharge grain via vertical and horizontal pipework.
Pneumatic gun X10. Marine Biology, Fisheries and Oceanography: Air gun used as a seismic source in marine geophysics.
Pneumatic Lift Bag X60. Marine Salvage and Wreck Removal: Heavy duty lift bag inflated with compressed air for salvage lifting.
Pneumatic stabilized platform X57. Ocean Energy Beyond Wind: Offshore platform concept that uses air-filled cells, occasionally cited in floating solar studies.
Pneumatic Test X75. IMDG Code, Classes, Packing and Segregation: Pressure test using gas, used cautiously on pressure receptacles per IMDG 6.2 with safety measures.
Pneumatic unloader X15. Ports, Terminals and Stevedoring: vacuum-based ship unloader for grain and similar bulks, e.g., Neuero Multiport.
Pneumofathometer X82. Saturation Diving and Offshore Diving Operations: Open tube measuring diver depth from surface gas back-pressure.
Pneumothorax management X36. Shipboard Medical, Telemedicine and Seafarer Health: Tension pneumothorax warrants advanced intervention; TMAS consult mandatory.
PNRA X133. Polar Research Vessels and Polar Code Regimes: Programma Nazionale di Ricerche in Antartide, Italian Antarctic program operating Mario Zucchelli Station.
PNS X116. Global Bunker Anchorages, Hubs and Supply Infrastructure: Pumps Number System, the MPA register identifying each MFM-equipped bunker tanker in Singapore.
PNT (Position, Navigation, Timing) E3. Technology, digitalization and smart shipping: Cross-cutting capability for ships and ports.
POAC X114. Maritime Arbitration and Shipping Law Firms: Practical Order at Commencement issued by some tribunals.
PoB X31. Helicopter Operations on Ships: Persons on Board, helicopter occupant count reported before each flight.
POC Probability X80. Maritime Search and Rescue Coordination: Probability of Containment within the searched area.
Pocket mask (CPR) X36. Shipboard Medical, Telemedicine and Seafarer Health: One-way valve barrier device for rescue breathing.
Pocket Stowage X9. Cargo Securing, Lashing and Stability Vocabulary: Stowage of cylindrical cargo in saddles or pockets.
Pocket Wagon X83. ISO Container Manufacturing and Leasing: Rail wagon with a recessed pocket accommodating semi-trailer or swap body in piggyback service.
POD X6. Container, Intermodal and Trade Codes: Port of Discharge.
Pod efficiency X38. Propellers, Stern Gear and Shaft Lines: Overall efficiency of a podded propulsor, including electric motor, gear (if any), and propeller.
POD Probability X80. Maritime Search and Rescue Coordination: Probability of Detection given coverage of the search object.
Podded propulsor X38. Propellers, Stern Gear and Shaft Lines: Azimuthing propulsion unit with the prime mover inside the submerged pod (Azipod, Mermaid, SSP, Dolphin).
Poet X124. Dredging Industry and Reclamation Contractors: Boskalis TSHD.
Pogoria X128. Sail Training Ships and Tall Ship Associations: Polish three masted barquentine built 1980 at Gdansk, 47 m length, lead ship of the Pogoria class, used by Polish Sail Training Association.
Pohang X58. Shipbuilding Yards and Construction: Korean industrial port and steelmaking center supplying yard plate stock.
Pohnpei Trade F1. Maritime History: Nineteenth century Pacific whaling and trading port.
Point X3. Ship Handling, Seamanship and Deck Vocabulary: Direction; 11.25 degrees on the compass.
Point Datum X80. Maritime Search and Rescue Coordination: Datum represented as a single geographic point with circular uncertainty.
Point Object X73. Marine Hydrography, Charting and ENC: An S-57 object represented by a single coordinate, such as BOYLAT or LIGHTS.
Point of Sail X84. Yacht Racing, Regattas and Sailing Governance: The yacht's heading relative to the wind, such as close-hauled, beam reach or run.
Point of Use Filter X41. Cruise Ship Public Health and VSP/USPH: In-line filter at a beverage station, requiring documented change frequency and post-filter halogen verification.
Pointe d'Esny X167. Major Salvage Companies, Wreck Removals, and Equipment: Southeast coast of Mauritius where the MV Wakashio grounded on 25 July 2020 and broke on 6 August 2020.
Pointe-a-Pitre X84. Yacht Racing, Regattas and Sailing Governance: City in Guadeloupe that is the finish of the Route du Rhum.
Poisonous Gas X75. IMDG Code, Classes, Packing and Segregation: Common term for Class 2.3 toxic gas.
POL X6. Container, Intermodal and Trade Codes: Port of Loading.
POL (Permanent Service for Oceanographic Levels) D2. Hydrography, tides, waves, bathymetry and marine geology: Historical predecessor of PSMSL.
Polacca X39. Pre-1900 Maritime History: A three-masted Mediterranean sailing vessel of the seventeenth and eighteenth centuries.
Poland PSC X66. Port State Control and Regional MOUs: Paris MOU member State.
Polar Air Cargo X104. Project Cargo Forwarders and Heavy Transport: US cargo airline operating Boeing 747 freighters in project related charters.
Polar Bear X97. Polar Expedition Cruise and IAATO Operations: Arctic apex predator (Ursus maritimus) and an emblematic species for Svalbard and east Greenland itineraries.
Polar Bear, MARPOL Region X52. Polar Code, Arctic and Antarctic Shipping: Informal reference to Arctic waters as defined for application of MARPOL provisions under the Polar Code.
Polar chart X16. Nautical Science, Navigation and COLREGs: Chart for use in polar regions, often gnomonic or stereographic.
Polar Class X52. Polar Code, Arctic and Antarctic Shipping: IACS classification system PC1 through PC7 defined in UR I1.
Polar Class (PC1 to PC7) X27. Polar Code, Ice Navigation and Polar Operations: IACS standardized polar ice classes adopted by all major class societies.
Polar Class 1-7 B5. Ship Types and Individual Vessels: Ice-class notation per IACS Polar Code.
Polar Class engines B2. Marine Engineering: Engines with reinforced specification for ice operations.
Polar Class Notation X8. IACS, Class Rules and Class Notations: IACS notation PC1 to PC7 defined under UR-I for polar operation.
Polar Class Patrol Vessel E2. Naval, defence and maritime law enforcement: Ice-capable naval/CG patrol ship.
Polar Code A6. Public international law of the sea: Adopted under SOLAS XIV and MARPOL; complements Article 234 jurisdiction.
Polar Code (Communications) E3. Technology, digitalization and smart shipping: Specific GMDSS/PNT considerations in polar regions.
Polar Code (Environmental Part) A3. Marine environmental legislation: MARPOL and its annexes: Mandatory under MARPOL Annex I-V.
Polar Code (Safety Part) A2. Maritime safety legislation: SOLAS and its codes: Mandatory under SOLAS XIV.
Polar Code Advanced Course X55. Marine Simulators, Training and Maritime Academies: STCW Regulation V/4 advanced course for masters and chief mates on ships in polar waters.
Polar Code Advanced Training X160. Maritime Academies, Universities, and STCW Certification: STCW A-V/4 paragraph 2 advanced level training required for masters and chief mates on ships operating in polar waters under more demanding conditions.
Polar Code Basic Course X55. Marine Simulators, Training and Maritime Academies: STCW Regulation V/4 entry-level course for officers in charge of a navigational watch in polar waters.
Polar Code Basic Training X160. Maritime Academies, Universities, and STCW Certification: STCW A-V/4 paragraph 1 basic level training required for masters, chief mates, and officers in charge of a navigational watch on ships operating in polar waters.
Polar Code Category A X97. Polar Expedition Cruise and IAATO Operations: Polar Code classification for ships designed for year-round operation in at least medium first-year ice including old ice inclusions.
Polar Code Category A Ship X133. Polar Research Vessels and Polar Code Regimes: Designed for operation in polar waters at least in medium first-year ice including old-ice inclusions.
Polar Code Category B X97. Polar Expedition Cruise and IAATO Operations: Polar Code classification for ships designed for year-round operation in at least thin first-year ice including old ice inclusions, not in Category A.
Polar Code Category B Ship X133. Polar Research Vessels and Polar Code Regimes: Designed for operation in polar waters at least in thin first-year ice including old-ice inclusions.
Polar Code Category C X97. Polar Expedition Cruise and IAATO Operations: Polar Code classification for ships designed to operate in open water or ice conditions less severe than Categories A and B.
Polar Code Category C Ship X133. Polar Research Vessels and Polar Code Regimes: Designed for operation in open water or in ice conditions less severe than Categories A and B.
Polar Code modifications B4. Shipbuilding, Materials, Sea Trials, Retrofits and Recycling: Retrofit modifications for Polar Code compliance.
Polar Code Part I-A X24. Cruise, Passenger Ship and Ferry Operations: Mandatory safety provisions for ships operating in polar waters under SOLAS XIV.
Polar Code Part I-B X27. Polar Code, Ice Navigation and Polar Operations: Recommended safety provisions.
Polar Code Part II-A X24. Cruise, Passenger Ship and Ferry Operations: Mandatory pollution prevention provisions under MARPOL.
Polar Code Part II-B X27. Polar Code, Ice Navigation and Polar Operations: Recommended pollution prevention guidance.
Polar Code Simulator Module X144. Bridge Simulators, Engine Room Simulators, and Maritime Training Equipment: Ice navigation scenario library for Polar Code training under STCW A-V/4.
Polar Code training X21. STCW Certificates, Crewing and Seafarer Welfare: STCW Regulation V/3 basic and advanced training for officers on ships operating in polar waters.
Polar Code, Entry into Force X52. Polar Code, Arctic and Antarctic Shipping: 1 January 2017 for SOLAS provisions and 1 July 2017 for the MARPOL amendments under MEPC.265(68).
Polar Coverage X95. GMDSS Equipment and Survival Craft Communications: HF radio coverage required in sea area A4 (above 76 degrees North and below 76 degrees South) where geostationary satellites are not visible.
Polar Cruises X97. Polar Expedition Cruise and IAATO Operations: US-based travel agency specializing in polar expedition bookings across multiple operators.
Polar Front D1. Physical and chemical oceanography and marine meteorology: Boundary between polar and subpolar water or air masses.
Polar Front (Cryosphere) D5. Coastal processes, sea-level, cryosphere and ocean observation science: Boundary between polar and subpolar water masses.
Polar King X42. Offshore Wind Installation and Cable Lay: Maersk Supply Service flagged offshore vessel deployed on US East Coast offshore wind support.
Polar Latitudes X97. Polar Expedition Cruise and IAATO Operations: US-based small-ship Antarctic operator chartering vessels including Sea Spirit and Hebridean Sky.
Polar moment of inertia B1. Naval Architecture: Used in torsional hull-girder analysis.
Polar Onyx X153. Offshore Drilling Rigs, FPSOs, and Offshore Vessels: GC Rieber Shipping subsea construction vessel.
Polar Pipe Project X37. Marine Spatial Planning, Subsea Cables and Submarine Pipelines: Conceptual northern subsea gas pipeline studied for Russian Arctic developments.
Polar Prince, CS X91. Submarines and Submarine Cable Systems: Vessel associated with Canadian subsea support activities.
Polar SAR X80. Maritime Search and Rescue Coordination: SAR operations in the Arctic or Antarctic SRRs.
Polar Sea X52. Polar Code, Arctic and Antarctic Shipping: USCGC Polar Sea WAGB-11, US Coast Guard heavy icebreaker commissioned on 23 February 1978, currently in inactive status.
Polar Security Cutter X52. Polar Code, Arctic and Antarctic Shipping: New US Coast Guard heavy icebreaker class being built by Bollinger Mississippi Shipbuilding to replace the Polar Star and Polar Sea.
Polar Sentinel X130. National Coast Guards and Cutter Fleets: Lead ship of USCG Polar Security Cutter program, under construction at Bollinger Mississippi, expected delivery 2027.
Polar Service Temperature X52. Polar Code, Arctic and Antarctic Shipping: Polar Code parameter defined as at least 10 degrees Celsius below the lowest Mean Daily Low Temperature for the intended area and season of operation.
Polar Service Temperature (PST) E4. Cruise, offshore energy and auxiliary/specialised fleets: Design temperature for polar operations.
Polar Ship Certificate X27. Polar Code, Ice Navigation and Polar Operations: Certificate issued under Polar Code attesting compliance and listing limitations.
Polar Star X52. Polar Code, Arctic and Antarctic Shipping: USCGC Polar Star WAGB-10, US Coast Guard heavy icebreaker commissioned on 19 January 1976, sole US asset capable of breaking heavy Antarctic ice for Operation Deep Freeze.
Polar Star, USCGC (WAGB-10) X130. National Coast Guards and Cutter Fleets: Heavy icebreaker commissioned 1976, currently sole US heavy icebreaker, Operation Deep Freeze McMurdo resupply.
Polar Stereographic X73. Marine Hydrography, Charting and ENC: A projection used on high-latitude paper charts where Mercator distorts excessively.
Polar Vortex D1. Physical and chemical oceanography and marine meteorology: Persistent large-scale low pressure circulation in the polar stratosphere or troposphere.
Polar Water Operational Manual X97. Polar Expedition Cruise and IAATO Operations: PWOM, the mandatory operational manual under the Polar Code documenting procedures for polar service.
Polar Water Operational Manual (PWOM) X27. Polar Code, Ice Navigation and Polar Operations: Required onboard manual addressing operational procedures for polar voyages.
Polar waters X27. Polar Code, Ice Navigation and Polar Operations: Either Arctic or Antarctic waters as defined in SOLAS XIV and MARPOL.
Polaris X16. Nautical Science, Navigation and COLREGs: Star Alpha Ursae Minoris; used for latitude north of about 1 degree N.
Polaris (Avenir) X110. LNG Bunkering Infrastructure and Vessels: 20,000 m3 LNG bunker vessel and small-scale carrier in the Avenir LNG fleet.
Polaris Bridge Simulator X55. Marine Simulators, Training and Maritime Academies: Legacy Kongsberg bridge simulator product, predecessor to the K-Sim Navigation line.
Polaris correction X16. Nautical Science, Navigation and COLREGs: Tabular correction (a0, a1, a2) applied to Ho of Polaris to obtain latitude.
POLARIS limited operation X27. Polar Code, Ice Navigation and Polar Operations: RIO between 0 and -10; reduced speed required.
Polaris Marine X110. LNG Bunkering Infrastructure and Vessels: Singapore-based small-scale LNG and bunker vessel operator.
Polaris Maritime X74. AIS Data, Vessel Tracking and Maritime Intelligence: Compliance and tracking platform marketed by various national authorities.
POLARIS operation not recommended X27. Polar Code, Ice Navigation and Polar Operations: RIO less than -10; operation not advised.
POLARIS Rating D5. Coastal processes, sea-level, cryosphere and ocean observation science: IMO operational rating for ships in polar waters.
POLARIS Risk Index Outcome (RIO) X27. Polar Code, Ice Navigation and Polar Operations: Numerical result of POLARIS calculation; positive permits normal operation.
POLARIS Risk Index Value (RIV) X27. Polar Code, Ice Navigation and Polar Operations: Pre-tabulated value for each ice class and ice type combination.
Polaris Shipping X49. Ship Finance, Leasing and Maritime Capital Markets: South Korean dry bulk owner that has used sale and leaseback structures.
Polarization X68. Maritime Satcom and Telecommunications: Orientation of the electric field of a radio wave, used for frequency reuse on satellites.
Polarization Curve X100. Marine Cathodic Protection and Anodes: The plot of potential against logarithm of current density used to characterize electrochemical kinetics.
Polarization Decay X100. Marine Cathodic Protection and Anodes: The slow return of a polarized structure toward its native potential after CP interruption, used to evaluate the 100 mV decay criterion.
Polarlys X85. Ferries, Ro-Pax Operators and Routes: Hurtigruten ro-pax built 1996 deployed on the Bergen to Kirkenes coastal route.
Polarstern X133. Polar Research Vessels and Polar Code Regimes: AWI flagship polar research vessel built 1982 by HDW Kiel, Polar Class PC1 equivalent.
Polarstern II X133. Polar Research Vessels and Polar Code Regimes: AWI replacement vessel ordered 2024 from a German Werften consortium, expected delivery 2030.
Pole and Drift Sled D5. Coastal processes, sea-level, cryosphere and ocean observation science: Polar field equipment for surface observations.
Pole and Line Fishery D4. Fisheries, aquaculture, blue economy and marine resources: Selective tuna fishery using poles and baited hooks.
Pole and Line Tuna Vessel X87. Fishing Vessels and Fisheries Management: Vessel using live bait and bamboo or fiberglass poles with barbless hooks to catch tuna one by one.
Pole Mount X68. Maritime Satcom and Telecommunications: Antenna mounting hardware that locates a maritime antenna above superstructure obstructions.
Pole Star Compliance X151. Maritime Sanctions, Dark Fleet, and Price Cap Regimes: A commercial provider of sanctions screening, AIS analytics, and PurpleTRAC due-diligence tooling.
Pole Star Global X74. AIS Data, Vessel Tracking and Maritime Intelligence: UK provider of LRIT services and the PurpleTRAC compliance platform.
Pole Star LRIT X74. AIS Data, Vessel Tracking and Maritime Intelligence: One of the original IMO-recognized LRIT Application Service Providers.
Pole-and-Line Tuna X131. Commercial Fisheries, Trawler Fleets and Seafood Processors: See Bait Boat.
Polemis, The [1921] 3 KB 560 X143. Landmark Maritime Law Cases and Doctrines: English Court of Appeal direct consequences test for tort damages, overruled by The Wagon Mound (No 1).
Polferries X132. High-Speed Craft, Hydrofoils and Ferry Operators: Polish state operator (Polska Zegluga Baltycka) running Swinoujscie to Ystad and Nynashamn.
Police Coast Guard X130. National Coast Guards and Cutter Fleets: Singapore Police Coast Guard, founded 1866 as Marine Police, headquartered Pulau Brani.
Polish Court of Arbitration at the Polish Chamber of Maritime Commerce X114. Maritime Arbitration and Shipping Law Firms: Specialised maritime arbitration forum in Gdynia.
Polish Distant Water Trawler Fleet X87. Fishing Vessels and Fisheries Management: Historic fleet of B series stern trawlers built in Gdynia for Atlantic and Pacific operations.
Polish Maritime Accident Investigation Act 2012 X163. Marine Accident Investigation Agencies and Landmark Inquiries: Statute establishing PKBWM as the Polish independent investigation body for marine casualties.
Polish Naval Academy Gdynia X121. Maritime Education, Academies and Universities: Akademia Marynarki Wojennej, hosts civil navigation track alongside military training.
Polish Naval Academy of the Heroes of Westerplatte X160. Maritime Academies, Universities, and STCW Certification: Polish Navy academy in Gdynia training Polish Navy officers and conducting maritime research.
Polish Navy X77. Naval Mine Warfare and Mine Countermeasures: Operator of the Kormoran-class and earlier Wozney-related mine countermeasures classes in the Baltic.
Polish Register of Shipping X98. Ship Registries and Flag States: PRS, classification society founded 1936 and IACS member.
Polish Register of Shipping (PRS) X8. IACS, Class Rules and Class Notations: IACS member, headquartered Gdansk.
Polishing Bed X69. EGCS Scrubbers, SCR and Marine Air Emissions: Optional charcoal or zeolite bed for residual organic removal from scrubber bleed-off.
Polishing filter X19. Engine Room Watchkeeping and UMS Operations: Final filter on lube oil system, often centrifugal type.
Pollack X10. Marine Biology, Fisheries and Oceanography: *Pollachius pollachius*, Atlantic gadid; not to be confused with Alaska pollock.
Polled DSC X23. AIS, GMDSS, IALA Buoyage and Aids to Navigation: DSC position request acknowledged automatically by a responding radio.
Pollock X87. Fishing Vessels and Fisheries Management: Gadus chalcogrammus (Alaska pollock) and Pollachius pollachius (Atlantic pollock).
Pollock (Alaska) X10. Marine Biology, Fisheries and Oceanography: *Gadus chalcogrammus*, North Pacific gadid supporting one of the world's largest fisheries.
Pollution Control Board (Gujarat) X118. Ship Recycling Yards, Beaches and Regulation: GPCB issues consent to operate to Alang plots under the Water Act 1974 and Air Act 1981.
Pollution Funds X157. Marine Loss Adjusters, GA Practice, and Casualty Firms: IOPC Funds providing compensation in tanker pollution cases supplementary to shipowner cover under CLC.
Pollution Hazard Clause X4. Marine Insurance, P&I and Claims: ITC Hulls 1/10/83 clause 7 covering damage to the vessel resulting from authority action to avert pollution.
Pollution Insurance Limit X60. Marine Salvage and Wreck Removal: Maximum P&I cover available for pollution liability, set by IG club arrangements.
Pollution Liability X51. Maritime Arbitration, Law and BIMCO Clauses: The body of strict liability under CLC, the Bunker Convention, and national statutes such as OPA 1990.
Pollution Mitigation X13. Marine Salvage and Wreck Removal: Activities under Article 14 attracting special compensation when SCOPIC absent.
Pollution prevention certificate C2. Ship operations, crewing and technical management: Generic term for MARPOL certificates.
Pollution Prevention Deficiency X66. Port State Control and Regional MOUs: 14000 series deficiency under MARPOL Annexes I-VI.
Pollution prevention equipment X19. Engine Room Watchkeeping and UMS Operations: OWS, STP, and incinerator collectively under MARPOL.
Pollution Prevention Plan X118. Ship Recycling Yards, Beaches and Regulation: Plot-level plan addressing oil spill, hazardous waste, and storm-water runoff prevention.
Pollution Prevention Salvage X99. Marine Salvage Awards and SCOPIC: Salvage operations whose principal purpose is preventing escape of harmful substances.