Building a daily temperature anomaly chart for Spain: A data-driven approach to climate visualization
By
Dominic Royé
Summary
A climate scientist provides a detailed, end-to-end walkthrough of how to build a daily mean temperature anomaly chart for Spain, showing temperatures against their climatological normal with red/blue shading. The article explains the data pipeline, processing methods, and visualization choices, emphasizing that temperature is an interval scale where a zero baseline is inappropriate. The author maintains this chart as a personal reference tool to quickly assess whether heatwaves or cold snaps are genuinely unusual.
Source
bskyBuilding a daily temperature anomaly chart for Spain: A data-driven approach to climate visualizationdominicroye.github.ioKey quotes
· 3 pulledWhenever I want to know 'is this heatwave or cold snap actually unusual, or does it just feel that way', this is the chart I reach for
a line, not a column, because temperature is an interval scale and a zero baseline makes no sense here
the daily mean temperature in Spain against its climatological normal, with the anomaly shaded in red (above normal) and blue (below)
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