Flood monitoring

Effective flood monitoring and forecasting are essential components of disaster risk reduction and climate adaptation strategies. Efforts to strengthen these capabilities can help to significantly reduce vulnerabilities and enhance resilience. ” (World Meteorological Organization. 2025

Sources

World Meteorological Organization. 2025. “The Future of Flood Forecasting: Technology Driven Resilience.” MeteoWorld Magazine, July 11. WMO. Accessed August 13, 2025. https://wmo.int/media/magazine-article/future-of-flood-forecasting-tech….
 

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The role of Global Navigation Satellite Systems (GNSS) in water monitoring

Imagine a small coastal community at the periphery of a tropical storm. Hours before the first waves hit, an antenna smaller than a dinner plate begins detecting subtle changes in signal patterns from satellites thousands of kilometres overhead. Within minutes those changes reveal that the tide is rising far faster than normal. A sign of a storm surge. Warnings are issued and lives are saved. This is the power of Global Navigation Satellite Systems (GNSS) when used not only for navigation but as a tool for environmental sensing (Li et al. 2024).

Capacity Building and Training Material

The online documentation of The Global Flood Monitoring (GFM)

The Global Flood Monitoring (GFM) product is a new component of the EU’s Copernicus Emergency Management Service (CEMS) that provides continuous monitoring of floods worldwide, by processing and analysing in near real-time (NRT) all incoming Synthetic Aperture Radar (SAR) imagery acquired by the EU’s Copernicus Sentinel-1 satellites, in Interferometric Wide Swath (IW) mode and as Ground Range Detected (GRD) products.

Project / Mission / Initiative / Community Portal

GloFAS Global Flood Monitoring

In 2021, a new operational, near real-time global flood monitoring (GFM) was integrated into GloFAS. The GFM product is part of the EU’s Copernicus Emergency Management Service and is operated by EODC. The new GFM provides a continuous monitoring of floods worldwide by immediately processing and analyzing all incoming Copernicus Sentinel-1 Synthetic Aperture Radar (SAR) satellite data. Being a fully automated system, one of the strengths of the GFM is the high timeliness of its products.

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