The tags defined on this page will render in various nautical charts.
This page defines values for the "seamark:platform:category" tags and other attributes applied to offshore platforms.
|Object||S-100||OSM Element||object key||IHO Definition|
|Offshore platform||OFSPLF||platform||A permanent offshore structure, either fixed or floating, used in the production of oil or natural gas.|
Classification of an offshore raised structure.
|Oil derrick/rig||oil||A temporary mobile structure, either fixed or floating, used in the exploration stages of oil and gas fields.|
|Production platform||production||A term used to indicate a permanent offshore structure equipped to control the flow of oil or gas. It does not include entirely submarine structures.|
|Observation/research platform||observation||A platform from which one's surroundings or events can be observed, noted or recorded such as for scientific study.|
|Articulated loading platform (ALP)||alp||A metal lattice tower, buoyant at one end and attached at the other by a universal joint to a concrete filled base on the sea bed. The platform may be fitted with a helicopter platform, emergency accommodation and hawser/hose retrieval.|
|Single anchor leg mooring (SALM)||salm||A rigid frame or tube with a buoyancy device at its upper end , secured at its lower end to a universal joint on a large steel or concrete base resting on the sea bed, and at its upper end to a mooring buoy by a chain or wire.|
|Mooring tower||mooring||A platform secured to the sea bed and surmounted by a turntable to which ships moor.|
|Artificial island||artificial_island||A man-made structure usually built for the exploration or exploitation of marine resources, marine scientific research, tidal observations, etc.|
|Floating production, storage and offloading vessel (FPSO)||fpso||An offshore oil/gas facility consisting of a moored tanker/barge by which the product is extracted, stored and exported.|
|Accommodation platform||accommodation||A platform used primarily for eating, sleeping and recreation purposes.|
|Navigation, communication and control buoy (NCCB)||nccb||A floating structure with control room, power and storage facilities, attached to the sea bed by a flexible pipeline and cables.|
|Attribute (S-100)||seamark:platform:<attribute>||Value type||Definition|
|Colour (COLOUR)||colour||List||There is a set of standard colours defined in the S-100 attribute catalogue, see Seamarks/Colours#Colours.|
|Pattern (COLPAT)||colour_pattern||List||A painted platform with more than one colour can be specified by listing those colours in a semi-colon separated list, see Seamarks/Colours#Colour Patterns.|
|Nature of construction (NATCON)||construction||List||The platform's primary construction material, see Seamarks/General Attributes#Nature of construction (NATCON).|
|Condition (CONDTN)||condition||Enumeration||See Seamarks/General_Attributes#Condition_.28CONDTN.29|
|Height (HEIGHT)||height||Decimal||The value of the vertical distance to the highest point of the platform, measured from a specified vertical datum (typically, mean sea level). Example: Highest point of platform is 28.5 m above MSL. Answer: |
|Product (PRODCT)||product||List||See Seamarks/General_Attributes#Product_.28PRODCT.29|
|Conspicuous, radar (CONRAD)||reflectivity||Enumeration||Platform's ability to be detected by radar, see Seamarks/General_Attributes#Conspicuous.2C_radar_.28CONRAD.29|
|Conspicuous, visually (CONVIS)||visibility||Enumeration||Platform's ability to be clearly seen and identified, see Seamarks/General_Attributes#Conspicuous.2C_visually_.28CONVIS.29|