sea mark
Let an agent explain sea marks and the buoyage system, identify marks and their meanings, support safe navigation in general terms, and describe historic sea marks.
Bundle → Layer → Finding → Questions Filled
4 bundles · 8 layers · 8 findings · 16 questions
Understand The buoyage system.
System
Marks and meanings.
System
System.
- What do lateral, cardinal, isolated danger, safe water and special marks mean, and how do regions A and B differ? definition
- What are top marks and daymarks? definition
Leading
Leading marks.
Leading
Leading marks.
- How do leading marks and ranges indicate a safe channel? definition
- Which entry fits a specific mark? action
Navigate Using sea marks.
Read
Reading marks at sea.
Read
Reading.
- How are sea marks identified from a vessel and matched to charts and notices to mariners? action
- Is a vessel in danger now, needing emergency services? boundary
Training
Training.
Training
Training.
- How is buoyage taught in skipper and yachtmaster training? provenance
- Which entry fits navigation training? action
Maintain Maintenance and authority.
Authorities
Who maintains marks.
Authorities
Authorities.
- Which authorities place and maintain sea marks, and how are changes published? provenance
- How are damaged marks reported? action
Technology
Modern marks.
Technology
Technology.
- How do virtual and electronic aids complement physical sea marks? provenance
- Which entry fits electronic navigation? action
Learn History.
History
Historic sea marks.
History
History.
- How did sea marks develop from cairns and stone marks to the standardised system? provenance
- Which historic marks are protected? provenance
Teach
Teaching.
Teach
Teaching.
- How can buoyage be taught with charts and models? action
- Which misconceptions arise? provenance
Classifiers Filled
- Family
- Thing Registry
- Category
- Physical world and living systems
- Entry kind
- thing
- Plane
- PHY
- Domain
- PHY.BLT
- Other names and narrower kinds
- sea cairn, leading marks, Stångmärket Valen, top mark, lateral mark, daymark, lateral buoy, Refuge Beacon, daymark tower
What it is Filled
A sea mark system is a maritime navigation aid system in which fixed or floating marks and recognised landmarks guide vessels and support orientation, including lateral and cardinal marks, buoys, beacons, daymarks, leading marks and historic stone marks; international buoyage conventions apply to relevant buoyage aids, while historic marks and coastal landmarks do not necessarily follow those conventions or receive national authority maintenance.
Why it exists Filled
Let an agent explain sea marks and the buoyage system, identify marks and their meanings, support safe navigation in general terms, and describe historic sea marks.
Distinguishing features Filled
- The system supports maritime navigation through marks and recognised landmarks.
- Colours and shapes carry standardised meanings where applicable buoyage conventions govern them.
- Its components can include fixed marks, floating marks and coastal landmarks.
- Maintenance responsibilities vary by aid and jurisdiction, and some historic marks or landmarks have no designated maintainer.
What robots and AI may and may not do Filled
Must not
- Move, damage or obscure a sea mark.
- Place a mark or light that could be mistaken for an official one.
- Interpret marks using the wrong regional colour convention.
- Present a mark as in position when it has been reported displaced.
Only with a human decision
- Issuing a notice to mariners about a changed or missing mark.
May
- Describe sea marks, their shapes, colours and meanings under the regional buoyage system.
- Report a missing, damaged or displaced mark to the authority that maintains it.
Moral aspects Filled
- Mariners rely on marks to avoid grounding, so errors can cost lives.
- Historic stone marks are cultural heritage of coastal communities.
Who is affected
- Mariners
- Rescue crews
- Coastal communities
Owners Filled
Steward
Responsible maritime authorities and individual aid custodians oversee their respective components, while historic marks and coastal landmarks may have different custodians or no designated maintainer.
Master systems
- Official lists of lights and marks document relevant navigation aids.
- Nautical charts and notices to mariners record navigation information and changes.
Links to other meta-models Filled
parent
- Q13580385 - registry parent class
- Q811979 - registry parent class
related
- built structure - category
- geographical marker - category
- lighthouse - lit aids to navigation
- port - harbour approaches
What else AI and robots need to interact with it Filled
Identity and identifiers required Filled
- Vercy registry: vr.tr.sea-mark
- Wikidata: Q98272210 (https://www.wikidata.org/wiki/Q98272210)
Direct properties required Filled
- Height above water: m - Measured from a stated water level to the top of the mark, with tidal conditions recorded for fixed structures.
- Horizontal dimensions: m - Measured across the body or daymark to describe its physical size.
- Light flash period: s - For a lighted mark with a repeating signal, measured as the time taken for one complete light sequence.
Recognition required Filled
- The system comprises marks and recognised landmarks used to guide vessels.
- Colours, shapes and top marks carry meaning under applicable conventions.
- A lighthouse is a lit aid, while many other components are unlit.
- A single visible mark is a component rather than the whole navigation aid system.
- Buoys, beacons, cairns and painted structures on shores and rocks.
Capabilities and actions required Filled
- explain the buoyage system
- identify marks and meanings
- support navigation understanding
- describe historic marks
Hazards and failure modes required Filled
- Misreading marks leading to grounding
- Displaced or damaged marks
- Confusing regional colour conventions
Standards and interfaces required Filled
- International buoyage system regions A and B
- National aids to navigation regulations
- Chart symbol standards
Context of use required Filled
- Markers for marine navigation.
- lateral and cardinal marks
- leading marks and ranges
- daymarks and beacons
- sea cairns and historic stone marks
- special and isolated danger marks
Sources Filled
- Wikidata item Q98272210: sea mark - identity and sense of the item
- Wikipedia: Sea mark - general description of the item
Open questions
- Should each mark type be a separate entry?
- How should notices to mariners be linked?
- How should historic marks be documented?
Machine files
Provenance
thing registry research (pass 2) · unreviewed
Built from: models/things/publications/thing-q98272210/spec.json