institutional explainer
Helio and You: Seasons on Earth, Mars, and Beyond
NASA Science
Supports axial-tilt, hemisphere, latitude and solstice framing.
Open source ↗Verify · Sources, provenance, rights
Inspect what is preserved, sourced, authored, and still uncertain.
Winter's source concept is intentionally small; the release expands it without pretending the original library contained a missing synopsis.
Source concept record
BLANK_BY_SOURCE is a first-class provenance state.
- Canonical ID
- VIS-0194
- Exact title
- Winter
- Collection
- Visual Concepts, Themes, and Art Styles
- Section
- Seasonal Themes
- Variation
- None supplied
- Source description
- Blank by source
- Theme tags
- Art, Design, and Creativity; Seasonal, Holiday, and Celebration
- Format tags
- Other / Hybrid
- Rights-review flag
- False in source record
The universe thesis, records, taxonomies and tools are newly authored ICU elaboration, not recovered source copy.
Evidence sources
Institutional sources used for factual claims.
institutional explainer
What Causes the Seasons?
NASA Space Place
Supports the distinction between axial tilt and Earth–Sun distance as the cause of seasons.
Open source ↗institutional reference
Climate Atlas
NOAA National Centers for Environmental Information
Supports NOAA's Northern Hemisphere meteorological-season convention: winter is December–February.
Open source ↗institutional reference
Science of Snow
National Snow and Ice Data Center
Supports snowpack, visible reflectance/albedo, drifting/blowing snow and snow-cover terminology.
Open source ↗operational weather explainer
What is the Difference between Sleet, Freezing Rain, and Snow?
NOAA National Weather Service
Supports conceptual precipitation-phase distinctions by vertical temperature profile.
Open source ↗operational weather explainer
What is a Lake Effect Snow?
NOAA National Weather Service
Supports lake-effect ingredients and the importance of open water, cold air, wind direction and geography.
Open source ↗operational glossary
National Weather Service Glossary: Rime Ice
NOAA National Weather Service
Supports rime ice as rapid freezing of supercooled droplets on exposed objects.
Open source ↗operational weather reference
Hoarfrost
NOAA National Weather Service Sioux Falls
Supports hoarfrost as vapor deposition on surfaces below freezing and its distinction from rime.
Open source ↗Rights & media
Media policy for this candidate.
Bundled visuals
No third-party photographic media is bundled. Representation panels are original diagrams created in HTML/CSS.
Future sourced media
Any public-domain, CC0 or licensed media should carry creator/source/license fields at the asset level before publication.
External links
Sources are linked for verification. Linking does not transfer ownership of external content into ICU.
Evidence states
Words used throughout the universe.
| State | Meaning |
|---|---|
| Verified | A factual claim is linked to an identified source used in this candidate. |
| Editorial synthesis | ICU combines sourced ideas into an explanatory structure; the structure itself is not quoted source text. |
| Interpretive | A visual or explanatory choice helps understanding but is not documentary evidence. |
| Unknown | The available inputs do not support a conclusion; the UI leaves the gap visible. |
| Prototype | A tool models reasoning or representation and is not a live forecasting or sensing system. |