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Home › Knowledge › Publications › Rainfall simulator (RainyDay) and spatial rainfall (SpatRain)

Rainfall simulator (RainyDay) and spatial rainfall (SpatRain)

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Rainfall Simulator (RainyDay) generates daily rainfall based on annual rainfall characteristics and an assumption that rainfall patterns follow statistical distribution functions, such as Weibull and Gamma. The model takes into account day-to-day variations in rainfall events as well as different patterns of rainfall across time or seasons. The model operates in MS Excel. Spatial Rainfall (SpatRain) is a statistical tool to generate event-level rainfall maps across a watershed that represent the observed partial spatial correlation between daily rainfall at multiple locations. The results can be used by hydrological models that assess the influence of rainfall at watershed level on the scaling of river flow and its degree of buffering and flow persistence

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