This research improves aging satellite imagery using ground-based mirror arrays that reflect sunlight to diagnose and correct image blur. By giving satellites precise calibration targets, the method sharpens observations, enabling faster disaster response, improved climate monitoring, and more accurate data for governments and scientists worldwide.

Bur Oak Blight threatens Iowa’s most iconic tree. Current detection is slow and often too late. This research uses leaf-level reflectance and satellite imagery to identify early, invisible signs of infection across millions of trees. The approach enables rapid mapping of blight severity and helps protect Iowa’s ecological and cultural heritage.