InPRHA Webinar: Webinar: Unlocking the Rainfall Data Inside Telecommunication Networks

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(Europe/London: 27 May 2026, 12:00–13:00)

Join us for the fourth session of the InPRHA Webinar Series, hosted by the WMO World Weather Research Programme's (WWRP) Integrated Prediction of Precipitation and Hydrology for Early Actions (InPRHA) project.

Webinar promotional graphic on using telecommunication networks to monitor rainfall, featuring event details, speaker Martin Fencl, logos, and a data-related background.
 
Commercial microwave links (CMLs), the radio links forming the backbone of mobile networks, attenuate in proportion to rainfall along their path. This makes them a vast, near-real-time source of high-resolution precipitation data, densest exactly where conventional rain gauges are sparsest.
About the speaker: Martin Fencl has spent more than a decade collaborating with T-Mobile CZ on large-scale CML data collection at minute-level latency. He contributes to the GMDI and to the WMO Task Team on EarthHydroNet (TT-EHN) Data Policy group, working on expanding the Global Basic Observing Network (GBON) to include new hydrological data sources.
In this session, Martin Fencl (Czech Technical University) will present:
  • Scientific evaluations of CML-based rainfall retrieval, including applications for urban stormwater management and flood risk
  • The current status of the Global Microwave Link Data Collection Initiative (GMDI)
  • The path from research pilots to sustained, large-scale data collection, and what it will take to get there
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For any queries, please contact: avazcaltabiano@wmo.int