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311mo ago
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7 Years of Tropospheric NO₂
by tomtomistaken·Apr 12, 2026·1 point·0 comments
AI Analysis
●●SolidEye CandyRabbit HoleDark Horse
12-month rolling mean with time scrubbing reveals pollution patterns from 2019 to present.
Strengths
- •MapLibre GL JS handles large satellite datasets smoothly with flat and globe projections.
- •City overlays contextualize pollution hotspots against population centers.
- •Shareable links preserve zoom, time position, and projection settings for collaboration.
Weaknesses
- •Read-only visualization — no data export or analysis tools for researchers.
- •Limited to NO₂ data when TROPOMI measures CO, methane, and aerosols too.
Category
Target Audience
Environmental researchers, data visualization enthusiasts, educators
Similar To
NASA Worldview · Google Earth Engine · Copernicus Browser
Post Description
I got inspired by the Show HN post about 41 years of sea surface temperature anomalies[0] and made a similar visualization showing global tropospheric nitrogen dioxide (NO₂) density over time, measured by Sentinel-5P TROPOMI.
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