NZ night-time brightness by TA (VIIRS 2021)

Interactive choropleth of average night-time radiance across New Zealand’s Territorial Authorities (VIIRS, 2021). Toggle between relative (quantile bands) and absolute radiance.

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Data: NASA VIIRS Night Lights • Map: Stats NZ TA 2025 • Built with Plotly & MapLibre
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Notes
  • “Relative” view compares each TA within NZ (quantile bands).
  • “Absolute” shows the actual mean radiance (nW/cm²·sr).
  • City vs District: compact cities look brighter; large districts dilute averages.
NZ night-time brightness map