The increasing availability of geospatial foundation models has the potential to transform remote sensing applications such as land cover classification, environmental monitoring, and change detection. Despite promising benchmark results, the deployment of these models in operational settings is challenging and rare. Standardized evaluation tasks often fail to capture real-world complexities relevant for end-user adoption such as data heterogeneity, resource constraints, and application-specific requirements. This paper presents a structured approach to integrate geospatial foundation models into operational mapping systems. Our protocol has three key steps: defining application requirements, adapting the model to domain-specific data and conducting rigorous empirical testing. Using the Presto model in a case study for crop mapping, we demonstrate that fine-tuning a pre-trained model significantly improves performance over conventional supervised methods. Our results highlight the model's strong spatial and temporal generalization capabilities. Our protocol provides a replicable blueprint for practitioners and lays the groundwork for future research to operationalize foundation models in diverse remote sensing applications. Application of the protocol to the WorldCereal global crop-mapping system showcases the framework's scalability.
@article{arxiv.2508.00858,
title = {Deploying Geospatial Foundation Models in the Real World: Lessons from WorldCereal},
author = {Christina Butsko and Kristof Van Tricht and Gabriel Tseng and Giorgia Milli and David Rolnick and Ruben Cartuyvels and Inbal Becker Reshef and Zoltan Szantoi and Hannah Kerner},
journal= {arXiv preprint arXiv:2508.00858},
year = {2025}
}