Link between heat in the air and soil moisture:
"These Copernicus #Sentinel2 images, acquired on 22 June and 2 July 2025, show the impact of the heatwave on soil moisture in the agricultural landscape surrounding Châlons-en-Champagne in northern France.
The Normalised Difference Moisture Index (NDMI) reveals a stark contrast: blue areas, indicating wetter soils, shrink noticeably, while yellow and red tones, signs of dry or stressed land, expand rapidly over the ten-day period."