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Historical time series can be analyzed in two ways: annual maximum series or partial duration series.

Annual maximum series include only the highest values that occur within each year of the period of record, whereas partial duration series include all the values that occur within the period of record as long as they are higher than some threshold value. Using partial-duration series data for frequency analysis typically yields higher values for a...

Read More - Rainfall Duration Series: What’s The Difference Between Annual Maximum and Partial Duration?

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