NASA uses PACE to track fall foliage and seeks ground photos
NASA’s October 26 report describes satellite maps of changing leaf pigments and asks the public for photos to help check the observations.
What the record says
NASA says its PACE satellite can repeatedly measure three key leaf pigments across the globe, giving scientists a way to follow seasonal vegetation changes. Its October 26 Earth Observatory report compares maps from September 29–October 4 and October 5–11, showing redness shifting southward in parts of North America. The PACE team is asking people to submit ground photos through the GLOBE North America Phenology Campaign to help check satellite observations. The campaign also welcomes observations of shrubs, grasses, crops and other vegetation.
Source details and supporting locations.
Practical next step
Readers interested in contributing can follow the GLOBE campaign link in NASA’s report for participation instructions.
Limits and what is not established
The maps describe earlier observation periods, not today’s local foliage conditions. Redness can also reflect crops, drought or other stress, and clouds can leave gaps. Potential future uses for detecting drought, insects or plant disease remain research goals.
Sources checked October 26, 2026. Later notices may change instructions or arrangements.
Original sources
NASA Earth Observatory: original information