Simulating Spatially Varied Thunderstorm Rainfall

by Martin M. Fogel, Univ of Arizona, Tucson, United States,
Kim Kye Hyun, Univ of Arizona, Tucson, United States,

Document Type: Proceeding Paper

Part of: Hydraulics/Hydrology of Arid Lands (H²AL)


Using data from two independent, relatively dense networks of raingages located in the vicinity of Tucson, Arizona, the spatial distribution of thunderstorm rainfall was determined as was the effect of elevation on the occurrence of rainfall events. Defining an event as the occurrence of a storm center (point of maximum rainfall) somewhere over the watershed, probability distributions were obtained for the time between events, the number of storm cells per event, the location of a storm center as influenced by elevation and the amount of rainfall at the storm center. Simulation techniques were then used to generate a time series of thunderstorm rainfall events.

Subject Headings: Storms | Rainfall | Rain water | Spatial distribution | Probability | Watersheds | Probability distribution | Hydrologic data | Arizona | United States

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