2025-09-01, 11:30–12:00 (Europe/Amsterdam), HugoTECH
Global Pasture Watch (GPW) initiative addresses the critical need for monitoring grasslands and pastures, which cover 40% of Earth's surface and are vital for carbon sequestration, food, biodiversity, and cultural heritage.
GPW is developing four global, consistent, time-series datasets (2000 to 2024+): 30-m grassland class and extent, 30-m short vegetation height, 1-km livestock densities, and 30-m bi-monthly gross primary productivity. These flexible datasets serve as building blocks, enabling local calibration and fusion with other land cover products. For example, the GPW products can be combined into a harmonized map that identifies active grazing areas and pastures with varying management intensities, using global and continental thresholds for grassland classes, livestock densities, heights, and productivity trends, incorporating per-pixel uncertainty information. This approach relies on open data and open-source solutions, making it adaptable for various regional and local contexts. GPW also uses online tools like Geo-Wiki to collect and incorporate user feedback for future product enhancements. All data, including reference samples, are publicly available in cloud-native formats on platforms like Zenodo, STAC, and Google Earth Engine, with the source code accessible on GitHub https://github.com/wri/global-pasture-watch.
