Tools

Small interactive things running on the Raspberry Pi that serves this site.

SOM Composites

Node-frequency anomalies for any set of years, against the Z500 and MSL self-organizing maps of Hostler et al. (2025); code in synoptic-SOM. Significance comes from a year-block permutation test, and the same numbers can be downloaded as a publication-style figure.

Live Sensor

Temperature, humidity and pressure from a Sense HAT on the Pi, with derived dew point and sea-level pressure. The unique-visitor count is shown on the board’s LED matrix.