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Data Sketch

Seasons of Light

A year in Utqiaġvik, Alaska — where time fractures between polar night and midnight sun. Each tile marks a day, colored by its share of daylight hours.

Prototype
Role
Concept, data, design, and development
Context
Independent data sketch
Data
Open-Meteo API · 2024
The Question

Utqiaġvik, Alaska, is one of the few places on Earth where the sun disappears entirely for months, and then stays above the horizon for months more. Polar night runs from mid-November to mid-January; midnight sun from mid-May to early August.

This piece uses Utqiaġvik as a way into a different kind of calendar — one structured not by weeks or months, but by light.

The Process

Daylight data was pulled from the Open-Meteo API for the full year 2024 at Utqiaġvik's coordinates. Polar night was defined as 0 daylight hours; midnight sun as 24 hours; twilight seasons as everything between.

Each day was assigned a color based on its daylight hours, running from near-black navy through graduated slate blues to pale sage-green.

The Visualization

Seen as a whole, the year reveals something description alone cannot: the symmetry of the extremes, the long gradual descent into darkness in autumn, the sudden snap of polar night, the slow bloom back toward light.

A minimal marker highlights the current day in the calendar, a small anchor making the abstract briefly concrete.

Full calendar grid showing a year of daylight in Utqiaġvik
Full year of daylight in Utqiaġvik — each tile one day
Prototype
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