Glossary

Maritime glossary, terms beginning with W (page 2)

All maritime glossary terms that begin with the letter W, drawn from every subject section. 1357 entries.

Showing 250 of 1357 terms (page 2 of 6).

Wassenaar Arrangement E1. Maritime security, geopolitics and risk: Export-control regime for conventional arms and dual-use goods.
Wasserstrassen- und Schifffahrtsverwaltung des Bundes X33. Inland Navigation and Barge Operations: WSV, German federal waterways and shipping administration.
WASSP F3X X129. Hydrographic Offices, Survey Vessels and Marine Cartography: WASSP forward-looking multibeam used in coastal mapping and fisheries.
WASSP S3 X129. Hydrographic Offices, Survey Vessels and Marine Cartography: New Zealand-designed multibeam echosounder from WASSP Ltd operating at 160 kilohertz, used on small commercial and fisheries craft.
WASSP W3 X129. Hydrographic Offices, Survey Vessels and Marine Cartography: WASSP wideband multibeam designed for shallow harbor surveys.
Wastage Allowance X5. Marine Surveying and Inspection: Allowable reduction of scantling thickness in class.
Waste Acceptance Criteria WAC X28. Ship Recycling and End-of-Life: Receiver's criteria for accepting hazardous and non-hazardous waste streams.
Waste Aerosols X75. IMDG Code, Classes, Packing and Segregation: UN 1950 entries can apply to waste aerosols collected for recycling, with specific provisions.
Waste Class 6.2 X75. IMDG Code, Classes, Packing and Segregation: Regulated medical or clinical waste covered by UN 3291 or UN 3549.
Waste heat boiler X19. Engine Room Watchkeeping and UMS Operations: Synonym for exhaust gas economizer.
Waste heat BWMS X18. Ballast Water, Biofouling and Antifouling: Pasteurization BWMS using engine waste heat, exemplified by Bawat.
Waste heat recovery (WHR) B2. Marine Engineering: Steam/power recovery from main engine exhaust.
Waste Hierarchy Application, Yard X50. Ship Recycling, Demolition and Hong Kong Convention: The application of the waste prevention, reuse, recycling, recovery, and disposal hierarchy at the recycling facility.
Waste Lithium Batteries X75. IMDG Code, Classes, Packing and Segregation: Covered by SP376 with strict packaging or competent authority approval.
Waste Management Plan X41. Cruise Ship Public Health and VSP/USPH: Shipboard plan addressing segregation, storage, and disposal of solid and liquid wastes per MARPOL and VSP.
Waste Management Plan, Yard X50. Ship Recycling, Demolition and Hong Kong Convention: The HKC and EU SRR mandated yard procedure for waste segregation, storage, and disposal.
Waste manifest X147. Ship Recycling, Hong Kong Convention, and Recycling Yards: Document trail covering each hazardous waste stream removed from the ship and tracked to its downstream disposal facility.
Waste Manifest Submission X86. Port Agency, Husbandry and Disbursement: Submission of waste manifests to port authorities for MARPOL compliance.
Waste Oil Storage Tank X50. Ship Recycling, Demolition and Hong Kong Convention: The yard infrastructure for storing recovered lubricating and hydraulic oils awaiting authorized disposal.
Waste oil tank X19. Engine Room Watchkeeping and UMS Operations: Tank receiving used lube and hydraulic oil for shore disposal.
Waste Stream (Galley) X120. Marine Catering, Provisions and Ship Chandlers: MARPOL Annex V categorization, food waste and packaging segregated for compliant discharge.
Waste Stream Management Plan X118. Ship Recycling Yards, Beaches and Regulation: Component of the SRFP addressing segregation, storage, and downstream management of each hazardous waste stream.
Waste Transfer Note X28. Ship Recycling and End-of-Life: UK regulatory document accompanying waste from yard to receiving facility.
Waste Treatment Subcontractor X50. Ship Recycling, Demolition and Hong Kong Convention: The downstream waste treatment facility receiving regulated streams from the recycling yard.
Wastewater Treatment Plant Effluent D3. Marine environmental science, pollution and conservation: Treated discharge from sewage works.
Watch X3. Ship Handling, Seamanship and Deck Vocabulary: Period of duty.
Watch Alarm X109. Maritime Autonomous Surface Ships and MASS Code: A bridge alarm that prompts watchkeeper response, replicated as part of remote operations supervision on MASS.
Watch Circle X23. AIS, GMDSS, IALA Buoyage and Aids to Navigation: Permitted area within which a moored buoy may swing under tide and wind.
Watch Free Notation X142. Classification Societies and Class Notations: UMS Unattended Machinery Space notation.
Watch handover X3. Ship Handling, Seamanship and Deck Vocabulary: Formal transfer of responsibility between officers.
Watch keeping X59. Offshore Wind O&M, CTVs and SOVs: Continuous monitoring of bridge or engine room functions by qualified officers and engineers.
Watch officer X16. Nautical Science, Navigation and COLREGs: Synonym for OOW.
Watch Officer Liaison X86. Port Agency, Husbandry and Disbursement: Liaison with the vessel's watch officer during the port stay.
Watch pilot X32. Marine Pilotage and Pilot Operations: Pilot rostered for a watch as distinct from on-call status.
Watch Receiver X23. AIS, GMDSS, IALA Buoyage and Aids to Navigation: DSC receiver that monitors Channel 70, 2187.5 kHz and HF DSC frequencies.
Watch Schedule X40. Tanker Vetting, SIRE and VIQ: The bridge and engine watch arrangement reviewed under VIQ Chapters 3, 4, and 10.
Watch Schedule (Fishing Vessel) X87. Fishing Vessels and Fisheries Management: Roster of crew duty periods, regulated by ILO C188 hours of rest provisions.
Watch Section X91. Submarines and Submarine Cable Systems: Crew rotation grouping aboard a submarine, typically with three sections in port and at sea.
Watch System F5. The Reference Layer: Glossary, Units, Signals and Information Sources: Traditional four-on, eight-off three-watch or two-watch system, with the dog watch from 1600 to 2000 divided into two two-hour watches.
Watch System (STCW) X102. Seafarer Welfare and Maritime Charities: Three-watch or four-watch system structured to comply with STCW Regulation VIII/1 rest hour minima.
Watch, Ice X52. Polar Code, Arctic and Antarctic Shipping: Bridge watch dedicated to lookout for ice and navigation through ice, required by PWOM procedures.
Watchkeeper X35. Yacht and Superyacht Industry: Crew member on duty during a navigational, engineering, or security watch.
Watchkeeper Log X80. Maritime Search and Rescue Coordination: Log maintained at an RCC documenting every action during a case.
Watchkeeper's Statement X157. Marine Loss Adjusters, GA Practice, and Casualty Firms: Crew statement contemporaneous with the casualty, often a critical evidential document.
Watchkeeping F3. Seafaring Life, Education, Professions and Institutions: STCW Chapter VIII deck and engine watchkeeping standards.
Watchkeeping arrangement C2. Ship operations, crewing and technical management: Schedule of bridge and engine room watches.
Watchkeeping arrangements B3. Nautical Science: Schedules in compliance with STCW VIII.
Watchkeeping Certificate X160. Maritime Academies, Universities, and STCW Certification: Common UK MCA term covering OOW Deck (A-II/1) and EOOW (A-III/1) certificates of competency.
Watchkeeping deficiency X12. Maritime Casualties and Investigation: Failure to comply with STCW Chapter VIII watch standards, common in collision and grounding causation.
Watchkeeping Doubling X22. Piracy, Maritime Security and Armed Protection: BMP measure adding personnel to navigational and security watches.
Watchkeeping Schedule Verification X150. Tanker Vetting: OCIMF SIRE, CDI, RightShip, and TMSA: The SIRE chapter check confirming watch arrangements meet STCW and operator policy.
Watchstander X127. Maritime Security, Anti-Piracy and PMSCs: Additional lookout posted under BMP5 in approach areas.
Water (Potable, Bottled) X120. Marine Catering, Provisions and Ship Chandlers: IMPA 551640 series, supplemental to ship's potable water tanks.
Water and sediment X47. Marine Fuel Quality and ISO 8217: Combined contaminant fraction reported by some test methods, distinguished from individual water and sediment limits in ISO 8217.
Water Ballast X9. Cargo Securing, Lashing and Stability Vocabulary: Used to maintain stability and trim.
Water Ballast Survey X43. Marine Surveying and Warranty Surveying: A class and statutory inspection of ballast tanks, piping, and pumping arrangements, increasingly extended to ballast water management systems.
Water blasting X165. Marine Coatings, Antifouling, and Hull Husbandry: See UHP water blasting; surface preparation using high-pressure water alone.
Water Boat Service X86. Port Agency, Husbandry and Disbursement: Service of water boats delivering fresh water at anchor or alongside.
Water Bottom Sample X5. Marine Surveying and Inspection: Sample drawn at tank bottom to detect free water.
Water Bunkering Log X41. Cruise Ship Public Health and VSP/USPH: Same as bunkering log, with separate columns for shoreside source, halogen residual, and tank receiving the water.
Water by distillation X2. Marine Bunker Fuels, Lubricants and Bunkering Operations: Volumetric water determination per ISO 3733, the routine bunker test.
Water by Karl Fischer X2. Marine Bunker Fuels, Lubricants and Bunkering Operations: Direct water determination per ASTM D6304.
Water Cannon X22. Piracy, Maritime Security and Armed Protection: BMP recommended fixed or portable jet repelling boarders.
Water Capacity X75. IMDG Code, Classes, Packing and Segregation: Internal volume of a pressure receptacle measured by mass of water it holds.
Water Column Imaging (WCI) X129. Hydrographic Offices, Survey Vessels and Marine Cartography: Multibeam mode capturing acoustic returns from the water column, used to detect mid-water targets, gas seeps, and fish.
Water contamination X61. Marine Lubricants and Cylinder Oils: Presence of free or emulsified water in lubricating oil, monitored by crackle test, Karl Fischer titration, or FT-IR.
Water content X2. Marine Bunker Fuels, Lubricants and Bunkering Operations: Free and emulsified water in fuel, limited to 0.50% V/V in most residual grades.
Water Content Karl Fischer X174. Marine Engine Maintenance, Overhaul, and Condition Monitoring: Lube oil water concentration measurement by coulometric or volumetric titration per ASTM D6304.
Water Curtain X20. LNG Operations and Custody Transfer: Spray system protecting hull steel from cryogenic spills near manifold area on LNG carriers and jetties.
Water Cut X5. Marine Surveying and Inspection: Measurement of free water in petroleum cargo using water finding paste.
Water Cut Measurement X115. Marine Bunker and Cargo Surveying: Determination of free water in cargo or bunker tanks by means of water-finding paste or distillation per ISO 3733.
Water Damage X1. Cargo Science, Commodities and Cargo Care: Sea water, rain, sweat, or wash-water harming cargo.
Water Damage Survey X43. Marine Surveying and Warranty Surveying: An attendance to record cargo or equipment damage from fresh water, sea water, or fire-fighting water ingress.
Water depth alongside X15. Ports, Terminals and Stevedoring: see depth alongside.
Water Dip X115. Marine Bunker and Cargo Surveying: Tank reading using water-finding paste on a sounding tape to detect the height of free water at the tank bottom.
Water Finding Paste X5. Marine Surveying and Inspection: Color changing paste applied to tape for free water detection.
Water Framework Directive (WFD) D3. Marine environmental science, pollution and conservation: EU directive establishing integrated river basin and coastal water management.
Water Hammer Arrestor X41. Cruise Ship Public Health and VSP/USPH: Plumbing device limiting pressure transients in potable lines that could damage backflow preventers.
Water in Fuel Test X115. Marine Bunker and Cargo Surveying: Determination of water in petroleum products by distillation or Karl Fischer titration, with marine reference per ISO 3733.
Water Ingress Detection System Test X5. Marine Surveying and Inspection: Functional test of hold and forepeak alarms on bulk carriers.
Water Ingress Detector X1. Cargo Science, Commodities and Cargo Care: SOLAS-required bulker alarm in cargo holds.
Water injection (NOx) B2. Marine Engineering: Direct water injection or HAM for NOx control.
Water injection dredger X175. Port Engineering, Dredging, Breakwaters, and Quays: Dredger that fluidizes soft sediment by injecting low-pressure water through a horizontal beam, allowing density currents to carry the spoil away.
Water injection dredging X124. Dredging Industry and Reclamation Contractors: Method using high-volume low-pressure water jets to fluidize sediment for density-current transport, common in European harbors.
Water Level Information X73. Marine Hydrography, Charting and ENC: The S-104 product specification within S-100.
Water Level Information (S-104) X129. Hydrographic Offices, Survey Vessels and Marine Cartography: S-100-based product specification supporting time-varying water level surfaces for ECDIS overlay and under-keel clearance services.
Water Loading Schedule X41. Cruise Ship Public Health and VSP/USPH: Plan governing when and how potable water is bunkered, including pre-flush of the shoreside hose.
Water Lock X82. Saturation Diving and Offshore Diving Operations: Lock containing water transfer between chamber and external.
Water lubricated bearing X19. Engine Room Watchkeeping and UMS Operations: Stern tube bearing arrangement using sea water for lubrication, an alternative to oil filled type.
Water Lubrication System D6. Decarbonization, emissions and alternative fuels: Friction reduction via water-injected layers.
Water Mass D1. Physical and chemical oceanography and marine meteorology: Body of water with distinctive temperature, salinity, and chemistry.
Water mist X24. Cruise, Passenger Ship and Ferry Operations: High-pressure fixed fire-suppression system common on passenger ships.
Water mist system X19. Engine Room Watchkeeping and UMS Operations: Local application fire fighting system in machinery spaces under SOLAS II-2/10.
Water Production Log X41. Cruise Ship Public Health and VSP/USPH: Engine room record of evaporator or RO output including conductivity and diverter valve status.
Water quality challenge (BWMS) X18. Ballast Water, Biofouling and Antifouling: Marine, brackish, and fresh test conditions defined under MEPC.300(72) for type approval.
Water Reactive X75. IMDG Code, Classes, Packing and Segregation: Property assigned to Class 4.3 substances which liberate flammable gas in contact with water.
Water Reactive Substance X75. IMDG Code, Classes, Packing and Segregation: Class 4.3 substance such as UN 1402 calcium carbide.
Water Spray X75. IMDG Code, Classes, Packing and Segregation: Firefighting medium referenced in many EmS fire schedules.
Water Spray (Fire) X172. IMDG Code: Classes, Divisions, Segregation, and Key UN Numbers: Recommended extinguishing media in many EmS schedules; not permitted for Class 4.3 due to flammable gas evolution.
Water Spray Curtain X13. Marine Salvage and Wreck Removal: Protective screen used during hot work near hydrocarbons.
Water spray system X56. LNG/LPG Carriers and IGC Code: Deck and manifold water curtain system required by IGC Code Chapter 11 for fire protection and cold spill protection.
Water spray system (Polar Code) X27. Polar Code, Ice Navigation and Polar Operations: External water spray systems must remain operational at PST.
Water Treatment Plan, Yard X50. Ship Recycling, Demolition and Hong Kong Convention: The yard procedure for treating process and stormwater before discharge.
Water tube boiler X19. Engine Room Watchkeeping and UMS Operations: Boiler with water inside tubes, used for high pressure steam.
Water Washing Turbocharger X174. Marine Engine Maintenance, Overhaul, and Condition Monitoring: Periodic injection of fresh water at the turbine inlet to remove combustion deposits during operation.
Water-based coating X45. Marine Paints, Coatings and Antifouling: Coating using water as principal solvent, limited use in heavy-duty marine work.
Water-cooled condenser X26. Reefer Containers and Cold Chain Logistics: Vessel-side water loop condenser option for hold-stowed reefers; rare today.
Water-Jel dressing X36. Shipboard Medical, Telemedicine and Seafarer Health: Hydrogel burn dressing carried for thermal injuries.
Water-level detector X170. SOLAS 1974 Convention: Chapter-by-Chapter Glossary: SOLAS XII/12 requires audible and visual alarm in cargo holds, ballast tanks forward of collision bulkhead, and dry spaces of bulk carriers.
Water-lubricated stern tube X38. Propellers, Stern Gear and Shaft Lines: Stern-tube arrangement with seawater or fresh water as the bearing lubricant and polymer or composite staves; no aft oil seal required.
Water-reactive Liquid NOS UN 3148 X172. IMDG Code: Classes, Divisions, Segregation, and Key UN Numbers: A Class 4.3 not otherwise specified entry, packing group I, II, or III.
Water-reactive Solid NOS UN 2813 X172. IMDG Code: Classes, Divisions, Segregation, and Key UN Numbers: Class 4.3 generic entry for water-reactive solids that emit flammable gas.
Waterblast X113. Drydock and Ship Repair Yards: Drydock high-pressure freshwater jetting at 35 to 40 ksi removing fouling and loose paint to expose sound substrate.
Waterborne epoxy X45. Marine Paints, Coatings and Antifouling: Two-pack epoxy thinned with water, used in accommodation and certain ballast tank applications.
Waterborne Inspection X150. Tanker Vetting: OCIMF SIRE, CDI, RightShip, and TMSA: A SIRE or CDI inspection performed at anchor with launch access, less common than alongside inspection.
Waterford X39. Pre-1900 Maritime History: Irish south coast port and the eighteenth-century home of the Newfoundland provisions trade.
Waterfront X15. Ports, Terminals and Stevedoring: collective term for port apron, quays, and adjoining areas.
Waterfront Permit (Brownsville) X118. Ship Recycling Yards, Beaches and Regulation: Permit issued by the Brownsville Navigation District for recycling at port berths.
Waterfront Shipping X111. Methanol, Ammonia and Alternative Marine Fuels: Methanex subsidiary that operates the first commercial fleet of methanol dual-fuel product tankers from 2016.
Watering Hole X25. Maritime Cybersecurity, OT and IT: Compromise of a website frequented by a target community to deliver malware.
Watering Hole Attack X48. Maritime Cybersecurity: Compromise of a website frequented by a target community to deliver malware.
Waterjet X132. High-Speed Craft, Hydrofoils and Ferry Operators: Pump-jet propulsor, dominant on HSC above 30 knots, with Kamewa, Wartsila Lips, MJP and Hamilton as main suppliers.
Waterline X16. Nautical Science, Navigation and COLREGs: Line at which the water surface meets the hull.
Waterline area X45. Marine Paints, Coatings and Antifouling: Hull region around the load and ballast waterlines requiring special antifouling and abrasion resistance.
Waterline coating X165. Marine Coatings, Antifouling, and Hull Husbandry: A boot-top topcoat formulated for UV resistance and intermittent immersion at the load line.
Waterline Corrosion X100. Marine Cathodic Protection and Anodes: Accelerated corrosion in the splash zone above the immersed area, where CP current cannot reach.
Waterline Length X84. Yacht Racing, Regattas and Sailing Governance: The length of the hull at the waterline, central to displacement hull-speed calculations.
Waterplane area Aw X162. Naval Architecture, Stability, Resistance, and Structural Design: Area of the hull section cut by the waterline at a given draft.
Waterplane area coefficient (CWP) B1. Naval Architecture: Aw/(L*B).
Waterplane coefficient CWP X162. Naval Architecture, Stability, Resistance, and Structural Design: Ratio of waterplane area to circumscribing rectangle L by B.
Waterproof Coating X96. Hull Integrity Monitoring and Strain Gauges: Protective layer applied over an installed strain gauge to seal it against moisture ingress.
Waterson Hicks X114. Maritime Arbitration and Shipping Law Firms: London admiralty solicitors specializing in collisions and shipping disputes.
Watertight Bulkhead X9. Cargo Securing, Lashing and Stability Vocabulary: Subdivision element for damage stability per SOLAS II-1.
Watertight Door A2. Maritime safety legislation: SOLAS and its codes: Type A or B per SOLAS II-1/13.
Watertight Door Power Supply X67. Marine Electrical Systems and Shore Power: Dedicated UPS-backed circuit feeding hydraulic and electric watertight doors per SOLAS Regulation II-1/13.
Watertight Door Test X5. Marine Surveying and Inspection: Operational test of watertight doors and indicators.
Watertight doors operation X170. SOLAS 1974 Convention: Chapter-by-Chapter Glossary: SOLAS II-1/22 requires watertight doors to be kept closed during navigation except as specifically permitted.
Watertight integrity X11. Naval Vessels, Warship Systems and Naval Architecture: Standard ABC zebra closure conditions for combat readiness.
Watertight integrity (passenger ship) X170. SOLAS 1974 Convention: Chapter-by-Chapter Glossary: SOLAS II-1/22 requires masters' instructions on operation of watertight doors, side scuttles, gangways, and cargo ports.
Waterway X15. Ports, Terminals and Stevedoring: navigable channel within or leading to the port.
Waterway dredger X124. Dredging Industry and Reclamation Contractors: Inland CSD configuration for narrow channels.
Waterway Geofence X109. Maritime Autonomous Surface Ships and MASS Code: A virtual boundary along a navigable waterway used to confine an inland MASS to its permitted area.
Waterways Commerce Cutter X103. US Inland Waterway Towing and Barge: A US Coast Guard cutter class designed for inland aids to navigation and waterway maintenance.
Watson and Gilfillan X162. Naval Architecture, Stability, Resistance, and Structural Design: D G M Watson and A W Gilfillan, authors of preliminary ship design methods widely cited for lightship weight estimation (1976 RINA Transactions).
Watson Farley & Williams X51. Maritime Arbitration, Law and BIMCO Clauses: An international law firm with a leading maritime, asset finance, and energy practice.
Watson Farley & Williams LLP X157. Marine Loss Adjusters, GA Practice, and Casualty Firms: International law firm with significant ship finance, energy, and dispute resolution practice.
Watson v. Royal Caribbean Cruises X41. Cruise Ship Public Health and VSP/USPH: Reported litigation citing onboard public health practice that has informed industry training.
Watt Hour Rating X75. IMDG Code, Classes, Packing and Segregation: Energy rating of lithium ion cells and batteries, limit for SP188 small battery shipments.
Watt meter X19. Engine Room Watchkeeping and UMS Operations: Switchboard meter showing generator kW output.
Wattage draw X26. Reefer Containers and Cold Chain Logistics: Real-power consumption of reefer unit, typical 2 to 8 kW at steady state.
Wave Added Resistance X78. Voyage Optimization and Vessel Performance Software: The additional ship resistance arising from interaction with waves, typically estimated using STAWAVE-1, STAWAVE-2, SNNM, or SP-SNNM methods.
Wave Age D1. Physical and chemical oceanography and marine meteorology: Ratio of wave phase speed to wind speed.
Wave Bending Moment X54. Naval Architecture Software and IACS Rules: Wave-induced hull girder bending moment per IACS UR S11.
Wave Buoy X96. Hull Integrity Monitoring and Strain Gauges: Floating instrument measuring wave height, period, and direction at a fixed location.
Wave celerity B1. Naval Architecture: Phase speed of surface waves.
Wave climate C4. Ports, terminals and coastal/marine civil engineering: Statistical description of wave conditions.
Wave Crest D2. Hydrography, tides, waves, bathymetry and marine geology: Highest point of a wave profile.
Wave Dragon X57. Ocean Energy Beyond Wind: Overtopping wave energy converter originally developed in Denmark and tested at large scale in Nissum Bredning.
Wave drift force B1. Naval Architecture: Mean second-order force in irregular waves.
Wave Energy Prize X57. Ocean Energy Beyond Wind: US Department of Energy competition that supported development of innovative wave energy converters.
Wave Energy Scotland X57. Ocean Energy Beyond Wind: Public body established by the Scottish Government to support pre-commercial wave energy technology development.
Wave Energy Spectrum X54. Naval Architecture Software and IACS Rules: Statistical wave description such as JONSWAP or Pierson-Moskowitz used in seakeeping.
Wave farm X57. Ocean Energy Beyond Wind: Generic term for an array of wave energy converters at a single site, such as the Aguçadoura installation in Portugal.
Wave Glider X109. Maritime Autonomous Surface Ships and MASS Code: The Liquid Robotics wave and solar propelled persistent unmanned surface vessel platform now part of the Boeing portfolio.
Wave Glider Survey X37. Marine Spatial Planning, Subsea Cables and Submarine Pipelines: Autonomous surface vehicle used for long-duration metocean monitoring along cable and pipeline corridors.
Wave Glider SV2 X65. ROVs, AUVs, USVs and Marine Robotics: See Liquid Robotics Wave Glider SV2.
Wave Glider SV3 X65. ROVs, AUVs, USVs and Marine Robotics: See Liquid Robotics Wave Glider SV3.
Wave height X10. Marine Biology, Fisheries and Oceanography: Vertical distance between crest and preceding trough.
Wave Height Allowance X172. IMDG Code: Classes, Divisions, Segregation, and Key UN Numbers: Not formally defined in IMDG; stowage planning considers ship motions and bilge water access for damaged packages.
Wave Height Correction X80. Maritime Search and Rescue Coordination: Adjustment to detection range based on sea state.
Wave height correction (ISO 15016) B4. Shipbuilding, Materials, Sea Trials, Retrofits and Recycling: Sea-trial speed correction.
Wave height exceedance X57. Ocean Energy Beyond Wind: Statistical metric used in WEC and floating solar design to specify survivability thresholds.
Wave Hindcast X13. Marine Salvage and Wreck Removal: Retrospective wave data used in salvage planning and award argument.
Wave Hub X57. Ocean Energy Beyond Wind: UK wave energy test infrastructure off the north coast of Cornwall that is no longer operating in its original configuration.
Wave Loading Analysis X37. Marine Spatial Planning, Subsea Cables and Submarine Pipelines: Engineering analysis of wave forces on pipelines, risers, and shore-end cable sections during storms.
Wave Loads X169. Container Terminal Cranes, Yard Equipment, and Lashing: Dynamic forces on lashed deck stacks calculated per the IMO CSS Code annex 13 method and refined by lashing software.
Wave Mercury X122. Submarine Cable Laying, Repair Vessels and Operators: Global Marine cable ship, 110 m LOA, built 1995 as CS Wave Mercury and contracted to ACMA.
Wave off X3. Ship Handling, Seamanship and Deck Vocabulary: Cancel an approach.
Wave overtopping X175. Port Engineering, Dredging, Breakwaters, and Quays: Volume of water passing over the crest of a breakwater or seawall per unit length during wave attack.
Wave Period D2. Hydrography, tides, waves, bathymetry and marine geology: Time between successive wave crests at a fixed point.
Wave Period Window X60. Marine Salvage and Wreck Removal: Sea state criterion based on wave period for safe execution of specific salvage tasks.
Wave Power Inc. X57. Ocean Energy Beyond Wind: Generic placeholder for historic North American wave energy ventures.
Wave Radar X96. Hull Integrity Monitoring and Strain Gauges: Radar system that measures sea surface elevation and derives wave parameters from backscatter patterns.
Wave Refraction D2. Hydrography, tides, waves, bathymetry and marine geology: Change of wave direction as waves enter water of different depths.
Wave roller (AW Energy) X57. Ocean Energy Beyond Wind: Submerged oscillating wave surge converter developed by AW Energy of Finland.
Wave run-up X175. Port Engineering, Dredging, Breakwaters, and Quays: Vertical extent of wave climbing above still water on a sloping coastal structure.
Wave Scatter Diagram X54. Naval Architecture Software and IACS Rules: Joint distribution of significant wave height and period used in spectral fatigue analysis.
Wave Sentinel X122. Submarine Cable Laying, Repair Vessels and Operators: Global Marine cable ship, 110 m LOA, sister to Wave Mercury.
Wave Setup D1. Physical and chemical oceanography and marine meteorology: Increase in mean water level near shore due to wave momentum flux.
Wave Spectrum D2. Hydrography, tides, waves, bathymetry and marine geology: Distribution of wave energy with frequency and direction.
Wave standard maritime arbitration practice X152. Maritime Arbitration and Dispute Resolution: Informal phrase for LMAA-aligned practice norms now adopted across SCMA and emerging Asian maritime tribunals.
Wave Venture X122. Submarine Cable Laying, Repair Vessels and Operators: Global Marine cable ship, 110 m LOA, built 1983 as Pacific Guardian (CS and W) and renamed in fleet realignment.
Wave wall C4. Ports, terminals and coastal/marine civil engineering: Parapet on a breakwater to reduce overtopping.
Wave-Induced Acceleration X9. Cargo Securing, Lashing and Stability Vocabulary: Acceleration from ship motions in a seaway.
Wave-Making Resistance X54. Naval Architecture Software and IACS Rules: Resistance component due to ship-generated waves resolved in free surface CFD.
Wave-making resistance (RW) B1. Naval Architecture: Resistance associated with the ship's wave system.
Wave-piercing bow (ice) X27. Polar Code, Ice Navigation and Polar Operations: Some Arctic vessels combine wave-piercing and icebreaking forms.
Wave-Piercing Catamaran X132. High-Speed Craft, Hydrofoils and Ferry Operators: Incat-pioneered catamaran with slender lower bow that drives through waves instead of climbing them.
WaveBoost X57. Ocean Energy Beyond Wind: European research project on improving wave energy converter power take-off systems.
Wavelength D2. Hydrography, tides, waves, bathymetry and marine geology: Horizontal distance between successive crests.
Wavelength (sea) X16. Nautical Science, Navigation and COLREGs: Horizontal distance between successive wave crests.
Wavelength Conversion X68. Maritime Satcom and Telecommunications: Translation of signals between frequency bands at the satellite or ground.
Wavelength Selective Switch (WSS) X91. Submarines and Submarine Cable Systems: Optical network element used in modern submarine cable open cable systems.
Wavelink Maritime Institute X160. Maritime Academies, Universities, and STCW Certification: Singapore based training institute affiliated with the Singapore Organisation of Seamen offering STCW and officer upgrade courses.
WaveMaster 1 X59. Offshore Wind O&M, CTVs and SOVs: See Bibby WaveMaster 1.
WaveMaster Horizon X59. Offshore Wind O&M, CTVs and SOVs: See Bibby WaveMaster Horizon.
Wavertree X128. Sail Training Ships and Tall Ship Associations: 1885 British full rigged iron ship preserved at South Street Seaport New York, 99 m length, static museum exhibit with educational sail programs alongside.
WaveStar (Denmark) X57. Ocean Energy Beyond Wind: Multi-float wave energy converter that operated a demonstrator off Hanstholm, Denmark.
WAVEWATCH III D5. Coastal processes, sea-level, cryosphere and ocean observation science: NOAA third-generation wave model.
Wax appearance X47. Marine Fuel Quality and ISO 8217: Onset of wax crystallization in distillate fuel, related to cloud point and CFPP.
Wax-Like Substance (Annex II) X171. MARPOL 73/78: Annex-by-Annex Detailed Glossary: An NLS with a melting point above 0 degrees Celsius and a particular categorization treatment under Annex II tank cleaning provisions.
Way X3. Ship Handling, Seamanship and Deck Vocabulary: Motion through the water.
WAY-PYC X125. Superyacht Industry, Builders and Brokers: REG Yacht Code subset for passenger yachts.
Waybill C1. Commercial shipping, chartering, economics and finance: Sea waybill, non-negotiable transport document.
Waybill Project Cargo X104. Project Cargo Forwarders and Heavy Transport: Non-negotiable transport document used for project shipments between trusted parties.
Wayfarer F4. Recreational Boating, Yachting and Sport: Ian Proctor-designed two-person family dinghy.
Waypoint F5. The Reference Layer: Glossary, Units, Signals and Information Sources: Programmed position on a passage plan.
Ways, launch X58. Shipbuilding Yards and Construction: Greased timbers supporting and guiding the launch cradle.
WB Yeats X24. Cruise, Passenger Ship and Ferry Operations: Irish Ferries cruise ferry delivered 2018 for Dublin-Cherbourg and Dublin-Holyhead.
WBA Bunker Survey X72. Bunkering Hubs and Bunker Suppliers: World Bunker Association reference often used in northern European bunker survey reports.
WBCSD X34. Decarbonization, Alternative Fuels and Carbon Pricing: World Business Council for Sustainable Development; publishes corporate GHG accounting guidance with WRI.
WBT X8. IACS, Class Rules and Class Notations: water ballast tank, subject to PSPC under MSC.215(82) and ESP close-up survey under UR-Z10.
WCA X6. Container, Intermodal and Trade Codes: WCA World, global forwarder network; trade body, not a regulatory term.
WCA Annual Worldwide Conference X119. Maritime Conferences, Trade Shows and Awards: World Cargo Alliance freight forwarder member conference, founded 1998.
WCCON (Whether Customs Cleared or Not) X17. Chartering, Shipbroking and Freight Trading: NOR qualifier permitting tendering without customs clearance.
WCF (Weight Correction Factor) X5. Marine Surveying and Inspection: Factor converting petroleum volume to weight.
WCI X44. Shipping Indices, FFAs and Freight Markets: World Container Index published by Drewry covering composite and route-level container spot freight rates across eight major trade lanes.
WCMC D3. Marine environmental science, pollution and conservation: World Conservation Monitoring Centre, UNEP biodiversity data center.
WCO C3. Logistics, freight forwarding and multimodal trade: World Customs Organization.
WCO Harmonized System X26. Reefer Containers and Cold Chain Logistics: Customs classification, reefer-relevant chapters include 02 (meat), 03 (fish), 04 (dairy), 07 (vegetables), 08 (fruit), 30 (pharma).
WCPFC D4. Fisheries, aquaculture, blue economy and marine resources: Western and Central Pacific Fisheries Commission.
WCPFC Convention Area X87. Fishing Vessels and Fisheries Management: Western and central Pacific waters covered by the Honolulu Convention.
WCPFC Record of Fishing Vessels X87. Fishing Vessels and Fisheries Management: Authorized vessel list maintained by WCPFC for tuna fisheries in the convention area.
WCRP D5. Coastal processes, sea-level, cryosphere and ocean observation science: World Climate Research Programme.
WCS X169. Container Terminal Cranes, Yard Equipment, and Lashing: Warehouse Control System occasionally interfacing with container freight station and terminal yard systems.
WDM (Wavelength Division Multiplexing) X91. Submarines and Submarine Cable Systems: Optical transmission technique used on submarine cable systems.
Weapon Shipping Hatch X91. Submarines and Submarine Cable Systems: Hatch on a submarine through which torpedoes and missiles are loaded.
Weaponized Document X139. Maritime Cybersecurity, OT Threats and Standards: Malicious office file used in phishing; the dominant payload in shipping BEC and ransomware delivery campaigns.
Weapons Disembarkation X22. Piracy, Maritime Security and Armed Protection: Offloading of PCASP firearms following transit, generally to a floating armoury.
Weapons Embarkation X22. Piracy, Maritime Security and Armed Protection: Boarding of PCASP firearms via floating armoury or approved port.
Weapons Free / Tight / Hold E2. Naval, defence and maritime law enforcement: Air-defense ROE conditions.
Weapons License X22. Piracy, Maritime Security and Armed Protection: Flag state authorization for specified firearms and ammunition aboard a named vessel.
Weapons Storage X22. Piracy, Maritime Security and Armed Protection: Secure, restricted access stowage on board, normally under joint key control between master and team leader.
Wear X39. Pre-1900 Maritime History: English northeast coast river whose Sunderland yards built large numbers of nineteenth-century colliers and merchantmen.
Wear and Tear X53. Marine Insurance, P&I and Hull Clauses: Ordinary deterioration through use, excluded from hull and cargo covers as not a fortuity.
Wear and Tear Survey X43. Marine Surveying and Warranty Surveying: A condition assessment focused on deterioration consistent with normal service, supporting redelivery and insurance discussions.
Wear down gauge X19. Engine Room Watchkeeping and UMS Operations: Tool measuring tail shaft bearing wear at survey.
Wear Down Measurement X113. Drydock and Ship Repair Yards: Drydock gauging of tail shaft and rudder bearing clearances using Poker gauges or wedge gauges.
Wear metals X2. Marine Bunker Fuels, Lubricants and Bunkering Operations: Iron, copper, lead, tin, and chromium quantified in used lube oil by ICP-OES.
Wear protection X61. Marine Lubricants and Cylinder Oils: Function of base oil viscosity and antiwear additives in maintaining a separating film at loaded contacts.