Satellite data reveal the scale of the heat wave
Europe’s Sentinel‑3 Earth‑observation satellite recorded high‑resolution surface temperature data throughout June 2026. The measurements allow a precise mapping of areas where temperatures far exceeded historical averages.
Instruments and observation period
Using its OLI and SLSTR sensors, Sentinel‑3 collected daily infrared and thermal readings for the entire month. The results show multiple hotspots reaching temperatures above 45 °C, with the southern Mediterranean region experiencing the most intense heating.
Implications for research
Scientists can employ the satellite imagery to analyse the spatial distribution of extreme heat and explore links to urban heat‑island effects, soil moisture deficits, and atmospheric circulation patterns. The data also feed into climate models aimed at forecasting future extreme events.
Future outlook
Continued monitoring by Sentinel‑3 and other Copernicus satellites will be essential for tracking long‑term temperature trends across Europe and informing adaptation strategies.