# season (climate)

a drift in a slow system's parameter imposing a cycle on the window of a fast system

- Computed level: L16 (depth in the emergence graph, not abstraction)
- Status: review  ·  Domain: earth  ·  Arena: season

## Emergence
**Emerges from:** [parameter](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-parameter.condition), [window](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-window.range), [drift](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-drift.aimless), [cycle](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-cycle.loop), [fast](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-fast.speed), [system](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-system.organized)

**Through:** An aimless drift in a slow system's parameter cyclically modulates the range within which a fast system can exist, creating a recurring window of persistence.

**Novel properties:**
- recurrent opportunity
- paced emergence
- inter-temporal gating

## Examples
- Earth's axial tilt causes seasonal temperature shifts as it orbits the Sun, altering weather patterns every 90 days. *(astronomy)*
- The 11-year sunspot cycle modulates solar radiation, affecting satellite operations and radio communications on Earth. *(geophysics)*
- Monsoon seasons in Bangladesh redirect river flows annually, driven by shifts in atmospheric pressure and temperature gradients. *(climatology)*

## Used by
- [spring](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-spring.season) (L17)
- [summer](https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-summer.season) (L21)

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*Canonical: https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-season.climate*  
*Structured data: https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-season.climate.json*  
*Every definition provably resolves to space, time, energy and pattern.*