Probabilistic streamflow generation model for data sparse arid watersheds

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Abstract

The authors present a model that generates streamflow for ephemeral arid streams. The model consists of a stochastic hourly precipitation point process model and a conceptual model that transforms precipitation into flow. It was applied to the Santa Cruz River at the border crossing from Mexico into Southern Arizona. The model was constructed for four different seasons and three categories of inter-annual variability for the wet seasons of summer and winter. The drainage area is ungauged and precipitation information was inferred from a precipitation gauge downstream. The precipitation gauge record was evaluated against simulated precipitation from a mesoscale numerical weather prediction model, and was found to be the representative of the regional precipitation variability. The flow generation was found to reproduce the variability in the observed record at the daily, seasonal and annual time scales, and it is suitable for use in planning studies for the study site. © 2007 Hydrologic Research Center.

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APA

Shamir, E., Wang, J., & Georgakakos, K. P. (2007). Probabilistic streamflow generation model for data sparse arid watersheds. Journal of the American Water Resources Association, 43(5), 1142–1154. https://doi.org/10.1111/j.1752-1688.2007.00094.x

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