A daymark is a navigational aid for sailors and pilots, distinctively marked to maximize its visibility in daylight.[1]
![](http://upload.wikimedia.org/wikipedia/commons/thumb/b/b5/The_Daymark%2C_St_Martins.jpg/220px-The_Daymark%2C_St_Martins.jpg)
![](http://upload.wikimedia.org/wikipedia/commons/thumb/f/f3/Enslinje_-_Ystad-2021.jpg/220px-Enslinje_-_Ystad-2021.jpg)
![](http://upload.wikimedia.org/wikipedia/commons/thumb/e/ec/Scharh%C3%B6rnbake_1898.png/170px-Scharh%C3%B6rnbake_1898.png)
The word is also used in a more specific, technical sense to refer to a signboard or daytime identifier that is attached to a day beacon or other aid to navigation.[2] In that sense, a daymark conveys to the mariner during daylight hours the same significance as does the aid's light or reflector at night.[3] Standard signboard shapes are square, triangular and rectangular; and the standard colours are red, green, orange, yellow and black.[2]
Notable daymarks
edit- Trinity House Obelisk, UK
- Kingswear Daymark, UK
- Tasku beacon tower, Finland
- Keskiniemi beacon tower, Finland
- Hiidenniemi beacon tower, Finland
- Laitakari beacon tower, Finland
- Herring Tower, Langness, Isle of Man
- Le Hocq, Jersey
- La Tour Cârrée, Jersey
- Scharhörnbake, Germany
Symbols used on US charts
editChart symbols used by the US National Oceanic and Atmospheric Administration Department, 2013.[4]
Paper chart | Simplified | Simplified symbol name |
---|---|---|
Square or rectangular daymark | ||
Triangular daymark, point up | ||
Triangular daymark, point down | ||
Retro reflector |
See also
editReferences
edit- ^ "Daymark". Oxford English Dictionary (Online ed.). Oxford University Press. Retrieved 4 October 2021. (Subscription or participating institution membership required.)
- ^ a b "Nautical Terms for boating and marine industry terminology". www.marineinstitute.org. Archived from the original on 2003-12-17. Retrieved 2017-03-08.
- ^ Light List, Volume II, Atlantic Coast. Washington, DC: US Government Printing Office. 2015. pp. ix.
- ^ US Chart No. 1: Symbols, Abbreviations and Terms used on Paper and Electronic Navigational Charts. Department of Commerce National Oceanic and Atmospheric Administration Department of Defense National Geospatial-Intelligence Agency. 2013. p. 86.
External links
editThe dictionary definition of daymark at Wiktionary
🔥 Top keywords: Akademia e Shkencave e RPS te ShqiperiseAlexandria Ocasio-CortezBilderberg GroupCristiano RonaldoDong XiaowanMinecraftOperation GladioPrimal cutRiot FestStrictly Come Dancing (series 7)Main PageSpecial:SearchJuneteenthWillie MaysWikipedia:Featured picturesUEFA Euro 2024Xherdan ShaqiriCleopatraJamal MusialaDeaths in 2024House of the Dragon.xxxInside Out 2UEFA European ChampionshipJustin TimberlakeNoam ChomskyThe Acolyte (TV series)NvidiaBridgertonYouTubeSabrina CarpenterThe Boys (TV series)Amadou OnanaOpinion polling for the 2024 United Kingdom general electionUEFA Euro 2020Jayson Tatumİlkay GündoğanCabaret (musical)Cristiano RonaldoAlbaniaProject 2025Joe MazzullaThe Boys season 4Capital punishment in JapanXXXTentacionEmory TateArda GülerNalanda University2024 Copa América