Statistical Hydrology and Flood Frequency

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Statistical Hydrology and Flood Frequency
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Continuous and Discrete Data
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Siletz River, Oregon
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Linear Trend
Periodic Trend
Change in Variance
Change in Average
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Relative Frequency Histogram - Skew
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Cumulative Frequency Histogram
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Mean
Variance
Skewness
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Continuous Probability Density Function
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Mixed Freq Distn Model
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Effect of skewness on a distribution
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Generalized skew coefficients
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Relationship return period and return period
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Percent time flow value equaled or exceeded
Percent time flow value equaled or exceeded
Flow Duration Curves
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Binomial Probability Mass Function
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Exponential Distribution
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Log Normal Dist
Normal Dist
Four PDFs matched to Siletz River data
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Normal Probability Paper
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Lognormal Probability Paper
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Plotting position m/(n1)
Lognormal Plot of Data - confidence intervals
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Various Methods for plotting Probability of
exceedance
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Comparison of four fitted CDFs
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-S
S
X
Normal probability plot of river data