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1	Simulation of Summer Rainfall Occurrence in Arizona and New Mexico Yakowitz, Sidney 16 April 1977 (has links) From the Proceedings of the 1977 Meetings of the Arizona Section - American Water Resources Assn. and the Hydrology Section - Arizona Academy of Science - April 15-16, 1977, Las Vegas, Nevada / Thunderstorms produce most of the annual rainfall and almost all runoff from arid and semiarid rangelands in the southwest U.S. A model was developed to be used for predicting runoff in river basins, flood plane zonings, estimating flood damage, erosion, and sediment transport, and estimating precipitation available for forage growth. This rainfall occurrence model has three parameters: elevation, latitude and longitude, and takes into account rainfall occurrence in 22 stations located in Arizona and New Mexico. From these variables, mathematical equations were developed in an effort to predict point rainfall occurrence. Estimates of the number of seasonal occurrences were used as a check of the equations within the model. Hydrology -- Arizona. Water resources development -- Arizona. Hydrology -- Southwestern states. Precipitation (atmospheric) Mathematical models Statistical models Simulated rainfall Runoff Arizona New Mexico Distribution studies Flood forecasting Summer Maximum probable flood Rainfall intensity Impact (rainfall) Forecasting Thunderstorms Rainfall disposition Floods Markov processes