CEIE 340 Lecture 5 Frequency Analysis

CEIE 340 Lecture 5 Frequency Analysis - Frequency Analysis...

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1 Water Resource Engineering CEIE 340 Sayedul H. Choudhury, Ph.D. Frequency Analysis Today’s Topics s Introduction (Uses) s Frequency Analysis and Synthesis s Population Models s The Normal Distribution s The Log-Normal Distribution s The Log-Pearson Type III Distribution s Low-Flow Frequency Analysis s Adjustments of the Frequency Curve s Risk Assessment s Partial-Duration Series
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2 Frequency Analysis and Synthesis Frequency analysis is the process of breaking down the data in a way that leads to either a mathematical or graphical model of the relationship between the flood magnitude and its probability of occurrence. Hydrologic Cycle Flooding
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3 Hydrologic Design s Hydrograph Stage Discharge (cfs) P (in) Time (hour) Stage-Discharge Relationship b ah q = Discharge, where, h is the depth, and a and b are constants for a particular stream section Stage = Gage height above a specific datum Depth = Gage height above the stream bed
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4 Frequency Analysis and Synthesis s Population versus Sample
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This note was uploaded on 11/11/2009 for the course CEIE 340 taught by Professor Choudhury during the Spring '09 term at George Mason.

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CEIE 340 Lecture 5 Frequency Analysis - Frequency Analysis...

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