Earth Observation Foundation Models Automating Core Analysis
#1A new class of geospatial foundation models — pre-trained on terabytes of multi-temporal, multi-spectral satellite imagery — has emerged from NASA (Prithvi, released 2023), Google (SatVision), Microsoft (Planetary Computer AI), ESA (Phi-Lab/Φ-Lab models), and Scale AI's GeoAI partnerships. These models leverage transformer architectures pre-trained via masked autoencoding on Harmonized Landsat-Sentinel-2 and other archives, achieving state-of-the-art performance on flood mapping, crop segmentation, burned area delineation, and building extraction with minimal labeled fine-tuning data — in some cases outperforming specialist models trained from scratch on domain-specific datasets.