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Research draft

snow

vr.tr.snow · PHY.MAT

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

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

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.

What it is for: Frozen precipitation and its accumulation.

It can be explain snow formation and types; give safety and travel guidance; support winter recreation; describe snow in climate and water supply.

Distinguishing features

Ice crystal precipitation

Snowpack forms

Seasonal and regional

Hazard and resource

What it looks like

White crystalline flakes and a white ground cover.

How it is recognised

Ice crystals from clouds

Accumulates as snowpack

Hail is layered ice; sleet is partly melted

Related models

is a kind of - category

precipitation

is a kind of - category

material

is related to - frozen water

ice

is related to - hazard

avalanche

In practice

Families and kinds

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

Standards and regulation

Meteorological observation standards

Winter road and avalanche safety rules

Building snow load codes

Failure modes and hazards

Avalanches

Road and roof collapse hazards

Hypothermia and frostbite

Also called

yukigataice monsterdiamond dust crystalslushpacking snowNysnöChampagne powderfirst snowfallfirst snowartificial snowRennesnøacid snowold snowwet snowpermanent snowSnow flurriesdepth hoarsnowpacksmall hailindustrial snowfluted snowwatermelon snowvery light new snownew snowsnow in country or regionfirnground blizzardZastrugacrust

Where this came from

wikidata · CC0 1.0

Also registered as vr.tr.snow-substance

Drafted structure

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

Safety Snow hazards.

Protection.

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.

Physics.

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.

Practical.

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.

Context.

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

What the second pass must settle

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