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Capacity Building and Training Material

UN SPIDER Recommended Practice: Use of Digital Elevation Data for Storm Surge Coastal Flood Modelling


Storm surges and tidal waves are global phenomena that considerably affect human populations in coastal and island regions. According to the Guide to Storm Surge Forecasting published by the World Meteorological Organization in 2011, storm surges can be defined as “oscillations of the water level in a coastal or inland body of water in the time range of a few minutes to a few days, resulting from forcing from atmospheric weather systems. According to this definition, the so-called wind waves, which have durations on the order of several seconds, are excluded”.


International Water Management Institute

IWMI is a research-for-development (R4D) organization, with offices in 13 countries and a global network of scientists operating in more than 30 countries. For over three decades, our research results have led to changes in water management that have contributed to social and economic development. IWMI’s Vision reflected in its Strategy 2019-2023, is ‘a water-secure world’.



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