| 释义 |
- Purpose
- Other uses
- See also
- References
A Special Mark, as defined by the International Association of Lighthouse Authorities, is a sea mark used in maritime pilotage. It is recognisable by its yellow colour and X, (often referred to as a St. Andrews Cross) top-mark. It has a distinctive sequence of various flashes that does not match any other navigational mark flashes in its vicinity. PurposeSpecial marks can indicate: - Administrative areas
- Water skiing areas
- Anchorage areas
- Mooring areas
- Waiting areas
- Marine farms
- Oil wells
- Dead ends
- Pipelines
- Spoil ground (an area where dredged material is deposited)
- Historic wrecks
- Protected areas
- Outfall pipes (such as Stormwater, and Cooling water)
- Sewerage pipes
- Intake pipes
- Submarine cables
Other uses- Buoys, such as a Weather buoy or Mooring buoy are coloured yellow or have a yellow light to indicate it is not an aid to navigation.
See also{{Portal|Nautical}}{{Commons category|Special marks}}- Navigation
- Lateral mark
- Cardinal mark
- Safe water mark
- Isolated danger mark
References- {{cite web|url=http://www.iala-aism.org/web/pages/publications/docpdf/mbsenpdf/mbs6to9.pdf|title=Special Marks|publisher=IALA|deadurl=yes|archiveurl=https://web.archive.org/web/20071214074824/http://www.iala-aism.org/web/pages/publications/docpdf/mbsenpdf/mbs6to9.pdf|archivedate=2007-12-14|df=}}
{{DEFAULTSORT:Special Mark}} 1 : Buoyage |