Hydrograph Synthesis by Digital Computer

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Abstract
This study consists of hydrograph synthesis based on an investigation of runoff from small drainage basins in Texas. A technique for determination of the temporal distribution of infiltration capacity is developed. Correlations between a critical hydrograph parameter, lag, and basin characteristics are made. Also, correlations are made between basin characteristics and the coefficients from Snyder's synthetic unit-hydrograph equations. A method for fitting hydrograph data to mathematical functions is developed. A nonlinear least-squares method is presented for fitting the seven points obtained by a modified Snyder procedure to the Pearson type III mathematical function.

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