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Published

snow

vr.tr.snow · thing-q7561

Let an agent explain snow formation and types, give snow safety and travel guidance, support winter recreation, and describe snow in climate, hydrology and culture.

Thing Registry Physical world and living systems PHY.MAT
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

Safety Snow hazards.

Travel

Winter travel.

Travel

Travel.

  1. What do authorities advise for driving and travelling in snow here, and are warnings in force? provenance
  2. Is someone stranded or in danger now? boundary

Avalanche

Avalanche and roof loads.

Avalanche

Avalanche.

  1. What is the current avalanche danger, according to the regional service, and what do snow load rules require for roofs? provenance
  2. Which precautions apply in backcountry travel? provenance
Science How snow forms.

Formation

Snow crystals.

Formation

Formation.

  1. How do snow crystals form, and why do they take so many shapes? definition
  2. What determines whether precipitation falls as snow? definition

Types

Snow types.

Types

Types.

  1. What are powder, packing snow, slush, crust and firn, and how does snowpack change over time? definition
  2. What are yukigata and rime-covered ice monsters? provenance
Use Recreation and life.

Recreation

Winter sports.

Recreation

Recreation.

  1. What snow conditions suit skiing, snowboarding and other activities, and how is artificial snow made? provenance
  2. Which safety rules apply? provenance

Manage

Snow removal.

Manage

Snow removal.

  1. How is snow cleared from roads, roofs and paths safely? provenance
  2. Who is responsible here? provenance
Environment Climate and culture.

Water

Snow and water.

Water

Water.

  1. How does snowpack supply water, and how is it changing with climate, according to research? provenance
  2. How is snow measured? provenance

Culture

Snow in culture.

Culture

Culture.

  1. What names and meanings do different languages and cultures give to snow? provenance
  2. Which snow festivals and traditions exist? provenance

Classifiers Filled

Family
Thing Registry
Category
Physical world and living systems
Entry kind
thing
Plane
PHY
Domain
PHY.MAT
Other names and narrower kinds
yukigata, ice monster, diamond dust crystal, slush, packing snow, Nysnö, Champagne powder, first snowfall, first snow, artificial snow, Rennesnø, acid snow

What it is Filled

Precipitation of ice crystals that form in clouds and fall as flakes, and the material that accumulates on the ground in forms from powder and packing snow to slush, crust and firn, with regional names and formations such as yukigata patterns and rime-covered ice monsters; snow shapes climate, water supply, transport, recreation and hazards such as avalanches.

Why it exists Filled

Let an agent explain snow formation and types, give snow safety and travel guidance, support winter recreation, and describe snow in climate, hydrology and culture.

Distinguishing features Filled

  • Ice crystal precipitation
  • Snowpack forms
  • Seasonal and regional
  • Hazard and resource

What robots and AI may and may not do Filled

Must not

  • Direct people into avalanche terrain against current warnings.
  • Leave snow loads on roofs or overhangs that are known to exceed safe limits.
  • Dump cleared snow where it blocks exits, hydrants or emergency routes.
  • Present road or slope conditions as safe without current data.

Only with a human decision

  • Closing roads, slopes or buildings because of snow.
  • Sending people to rescue others in avalanche terrain.

May

  • Report snowfall, snow depth and avalanche danger from meteorological and avalanche services.
  • Clear snow from routes and roofs it is authorized to maintain, following safety rules.

Moral aspects Filled

  • Snow kills through avalanches, cold and collapses, mostly among people who underestimate it.
  • Declining snow cover threatens water supplies and mountain livelihoods.

Who is affected

  • Travellers and winter sports users
  • People without shelter
  • Mountain communities

Owners Filled

Steward

Nobody owns falling snow; owners answer for snow on their property and authorities for public routes.

Links to other meta-models Filled

parent

  • Q214609 - registry parent class
  • Q25257 - registry parent class

related

  • precipitation - category
  • material - category
  • ice - frozen water
  • avalanche - hazard

What else AI and robots need to interact with it Filled

Identity and identifiers required Filled

  • Vercy registry: vr.tr.snow
  • Wikidata: Q7561 (https://www.wikidata.org/wiki/Q7561)

Direct properties required Filled

  • Bulk density: kg/m3 - Density is measured as sample mass divided by bulk volume and varies strongly with compaction and liquid water content.
  • Snow depth: cm - Depth is measured vertically from the underlying surface to the top of the snow cover.
  • Snow water equivalent: mm - Water equivalent is the depth of liquid water represented by the snow mass over a given area.
  • Grain size: mm - Grain dimensions are measured using magnified observation with a calibrated scale.

Recognition required Filled

  • Ice crystals from clouds
  • Accumulates as snowpack
  • Hail is layered ice; sleet is partly melted
  • White crystalline flakes and a white ground cover.

Capabilities and actions required Filled

  • explain snow formation and types
  • give safety and travel guidance
  • support winter recreation
  • describe snow in climate and water supply

Hazards and failure modes required Filled

  • Avalanches
  • Road and roof collapse hazards
  • Hypothermia and frostbite

Standards and interfaces required Filled

  • Meteorological observation standards
  • Winter road and avalanche safety rules
  • Building snow load codes

Context of use required Filled

  • Frozen precipitation and its accumulation.
  • snowfall types such as powder and wet snow
  • ground snow such as packing snow, slush and crust
  • snow crystals and diamond dust
  • snow formations such as yukigata and rime monsters
  • artificial snow

Sources Filled

  1. Wikidata item Q7561: snow - identity and sense of the item
  2. Wikipedia: Snow - general description of the item

Open questions

  • Should snow types be separate entries?
  • How should forecasts be linked?
  • How should avalanche services be localised?

Machine files

Card as JSON Specification Card backlog vercy.card/1

Provenance

thing registry research (pass 2) · unreviewed

Built from: models/things/publications/thing-q7561/spec.json