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Published

lake

vr.tr.lake · thing-q23397

Let an agent handle lakes by name, size, depth, water quality, uses, protection and safety.

Thing Registry Physical world and living systems PHY.PLC
Bundle → Layer → Finding → QuestionsClassifiersWhat it isWhy it existsDistinguishing featuresWhat robots and AI may and may not doMoral aspectsOwnersLinks to other meta-modelsIdentity and identifiersDirect propertiesRecognitionCapabilities and actionsHazards and failure modesStandards and interfacesContext of useSources

Bundle → Layer → Finding → Questions Filled

4 bundles · 8 layers · 8 findings · 16 questions

Identity Which lake.

Name

Official name.

Name

Name and ids.

  1. What is the lake name and id? provenance
  2. Is it natural or artificial? definition

Size

Area and depth.

Size

Size and depth.

  1. What are its area and depth? measurement
  2. From which survey? provenance
Water Quality and levels.

Quality

Bathing and ecology.

Quality

Water quality.

  1. What is the current water quality? measurement
  2. Is there an algal bloom warning? boundary

Levels

Management.

Levels

Water levels.

  1. How are levels managed? definition
  2. Is there drought or flood risk? boundary
Use Recreation and supply.

Recreation

Swimming, boating.

Recreation

Recreation rules.

  1. Is swimming or boating allowed? boundary
  2. Which permits are needed? boundary

Supply

Drinking water.

Supply

Water supply use.

  1. Is it a drinking water source? definition
  2. What restrictions apply? boundary
Safety and culture Risks and meaning.

Safety

Cold water and ice.

Safety

Safety advice.

  1. What safety advice applies? action
  2. Is ice safe? boundary

Sacred status

Cultural meaning.

Sacred

Cultural meaning.

  1. Is the lake sacred to local people? boundary
  2. Are there restrictions? boundary

Classifiers Filled

Family
Thing Registry
Category
Physical world and living systems
Entry kind
thing
Plane
PHY
Domain
PHY.PLC
Other names and narrower kinds
inundation, Sacred lake, balancing lake, hafir, bathing lake, Noor, oxbow lake, coastal lake, dry lake, intermittent lake, underground lake, floodplain lake

What it is Filled

A body of relatively still water occupying a basin on land, larger than a pond, natural or artificial, including sacred lakes, reservoirs and bathing lakes.

Why it exists Filled

Let an agent handle lakes by name, size, depth, water quality, uses, protection and safety.

Distinguishing features Filled

  • Still water in a basin
  • Larger than a pond (definitions vary)
  • Natural or artificial
  • Can freeze, stratify and bloom with algae

What robots and AI may and may not do Filled

Must not

  • Discharge waste, fuel or contaminated water into a lake.
  • Release fish, plants or other organisms that are not native to the lake.
  • Operate the outlet or dam of a reservoir without authority from its operator.
  • Disturb nesting birds or protected shoreline habitat.
  • Treat a sacred lake as an ordinary leisure site against the wishes of the community that holds it.

Only with a human decision

  • Declaring a lake safe or unsafe for bathing or drinking water supply.
  • Changing the water level of a reservoir that people downstream depend on.

May

  • Measure and report a lake's water level, temperature and quality.
  • Describe a lake from maps, public records and visible features.
  • Warn people about posted bathing bans, thin ice or algal blooms.

Moral aspects Filled

  • Lakes are shared by people, wildlife and downstream users; pollution harms them all at once.
  • Some lakes are sacred, and their use must respect the communities that hold them.

Who is affected

  • People who drink, bathe or fish in it
  • Aquatic wildlife
  • Communities living downstream

Owners Filled

Steward

The public or the landowner; water authorities regulate its use and reservoir operators control the dams.

Master systems

  • Water body registers kept by environmental agencies

Links to other meta-models Filled

parent

  • Q2479431 - registry parent class
  • Q271669 - registry parent class
  • Q337567 - registry parent class
  • Q3391202 - registry parent class

related

  • body of water - standing water
  • landform - basin
  • water - supply
  • water law - rules

What else AI and robots need to interact with it Filled

Identity and identifiers required Filled

  • Vercy registry: vr.tr.lake
  • Wikidata: Q23397 (https://www.wikidata.org/wiki/Q23397)
  • water body id: national or WFD code management
  • GeoNames id: numeric gazetteer

Direct properties required Filled

  • largest by area: about 371000 km2 - Caspian Sea, often classed as a lake
  • deepest: about 1642 m - Lake Baikal

Recognition required Filled

  • Enclosed standing water
  • Names on maps and gazetteers
  • Bathing water signs
  • An expanse of open still water surrounded by land.

Capabilities and actions required Filled

  • swim, boat and fish, where allowed
  • monitor water quality
  • protect habitats
  • manage water levels

Hazards and failure modes required Filled

  • Drowning and cold water shock
  • Toxic algal blooms
  • Thin ice

Standards and interfaces required Filled

  • EU Water Framework Directive
  • Bathing Water Directive
  • Local boating and fishing rules

Context of use required Filled

  • Lakes supply water, support ecosystems, fisheries and recreation.
  • tectonic, glacial and volcanic lakes
  • reservoirs
  • saline lakes
  • sacred lakes
  • artificial balancing and bathing lakes

Sources Filled

  1. Wikidata item Q23397: lake - identity and sense of the item
  2. Wikipedia: Lake - general description of the item

Open questions

  • Should lakes be instances with water body ids?
  • How should size thresholds be defined?
  • How should sacred status be respected?

Machine files

Card as JSON Specification Card backlog vercy.card/1

Provenance

thing registry research (pass 2) · unreviewed

Built from: models/things/publications/thing-q23397/spec.json