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The Hydrologic Engineering Center's Hydrologic Modeling System (HEC-HMS) is one of the world's most widely used rainfall-runoff modelling platforms, supporting applications ranging from flood forecasting and water resources planning to dam safety and infrastructure design. This webinar explores the origins of HEC-HMS and traces its development from the DOS-based HEC-1 to the integrated modelling framework used today.

Building on this foundation, the webinar introduces the current capabilities of HEC-HMS and the diverse applications it is used for today. We’ll demonstrate advances in catchment delineation tools, precipitation and loss methods, transform and baseflow approaches, reservoir routing, calibration and uncertainty considerations, and the increasing integration of HEC-HMS with gridded datasets and discretisation.

Looking ahead, the webinar will consider the future direction of hydrologic modelling and the opportunities and challenges facing the HEC-HMS community with and substantial advances in hardware and software. Emerging topics will be discussed in an interactive, live, expert panel session, including the incorporation of higher-resolution datasets, advances in computational efficiency, ensemble and probabilistic approaches, and the influence of changing climate and land-use conditions

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