← Back to catalogue
Research draft

lighthouse

vr.tr.lighthouse · PHY.BLT

Let an agent handle lighthouses by name, location, light characteristic, status and heritage.

Thing Registry Physical world and living systems

Research draft, second pass

A second pass drafted this model: the structure a model of this thing needs, and what is known about it in the world. The line under this one says how the second half was obtained - researched against sources, or recalled without web access, in which case nothing here was read anywhere and every claim is a lead to verify. Unreviewed either way.

written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify

Researched by: Claude

Purpose and description

Let an agent handle lighthouses by name, location, light characteristic, status and heritage.

A tower or structure with a powerful light to guide ships at sea or on inland waterways, marking coasts, hazards and harbour entrances with characteristic light patterns; many are now automated or historic.

What it is for: Navigation safety; also heritage and tourism.

It can be identify it from its light characteristic; look it up in the list of lights; visit where open; preserve it as heritage.

Distinguishing features

Navigational light structure

Unique light characteristic

Listed in official lists of lights

Many automated

What it looks like

A tall tower, often striped, with a lantern room at the top.

Physical character

nominal range: 10-30 nautical miles - major lights

How it is recognised

Light characteristic such as Fl(2) 10s

Daymark colours and bands

Inactive lighthouses no longer show a light

Related models

is a kind of - category

navigational aid and building

guides - users

ship

is operated by - operator

lighthouse authority

is related to - aids

beacon and buoy

In practice

Families and kinds

coastal lighthouses

harbour and approach lights

range or leading lights

lightships and offshore towers

inactive and historic lighthouses

Identifiers

ARLHS number amateur radio lighthouse society id lighthouses

Admiralty List of Lights number official light number navigation

Standards and regulation

IALA recommendations

SOLAS Chapter V

Heritage protection law

Failure modes and hazards

Relying on out-of-date light data

Unsafe access on cliffs and towers

Also called

approach lighthouseHeidenstam lighthouseHarwich High and Low LighthousesLive Fire Warning beaconinactive lighthousefishers lighthousefanalBlüsebascule lightLights of North Shieldsleading lightsnuclear beaconlight platformLighthouse in Norwaycoastal lighthouseIntegral Lighthouselower lightupper lightfaux lighthouseancient lighthouselead lighthouseaerial lighthousecaisson lighthousecrib lighthouselighthouse in Chileland lighthousewooden lighthousemiddle lightoffshore lighthousepile lighthousescrew-pile lighthouseskeletal towerstag lightsector lightsparkplug lighthousePEL sector light

Where this came from

wikidata · CC0 1.0

Source repository Registry entry point

Drafted structure

Bundle to layer to finding to question, as the second pass will find it: 4 bundles · 8 layers · 8 findings · 16 questions.

Identity Which lighthouse.

Names and numbers.

Name

Location.

Name

Lighthouse identity.

  1. Which lighthouse, and where? provenance
  2. What is its official light number? provenance

Status

Active or inactive.

Status

Status.

  1. Is it active and automated? provenance
  2. Who operates it? provenance
Light Characteristic.

Characteristic identifies it at night.

Characteristic

Pattern.

Characteristic

Light characteristic.

  1. What is its light characteristic and colour? definition
  2. What is its range? measurement

Notices

Changes.

Notices

Notices to mariners.

  1. Are there notices of changes or outages? provenance
  2. From which authority? provenance
Heritage History.

Lighthouses are heritage.

History

Construction.

History

History.

  1. When was it built, and by whom? provenance
  2. Is it a protected building? provenance

Visiting

Access.

Visiting

Visiting.

  1. Is it open to visitors? provenance
  2. What safety rules apply? boundary
Navigation Use at sea.

Mariners rely on lights.

Charts

Official data.

Charts

Chart data.

  1. How is it shown on charts? definition
  2. Is the chart current? boundary

Hazard

What it marks.

Hazard

Marked hazard.

  1. What hazard or approach does it mark? definition
  2. Are sectors coloured? definition

What the second pass must settle

  • Should lighthouses be instances with light numbers?
  • How should light characteristics be recorded?
  • How should heritage status be linked?
Draft as JSON