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Real-time monitoring networks are systems of sensors and radars, and the accompanying computer systems, to track changes in hydrological conditions in near real time. Real-time monitoring provides an important source of information for early warning systems and timely flood preparedness. Remote sensing data on measures such as rainfall, wind, water levels and slope movement send information to a server immediately after data collection, thus increasing lead- time before a potential natural disaster such as flooding or landslides. Increasing lead-time is vital for issuing timely warnings, taking action and reducing potential impacts on people, assets and infrastructure. Real-time monitoring also provides important information on gradual changes in climatic conditions and trends over time.…

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Technology Compendium
Disaster risk reduction