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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 given frequency than using annual maximum series data. The difference in...

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TagsHEC-HMS, Rainfall, Texas Rainfall,

The USACE has released a new version of HEC-HMS that has several new capabilities including forecast baseflow automatic initialization, forecast reservoir automatic initialization, uncertainty analysis empirical distribution, annual pattern evapotranspiration and compute to a point. Additionally, several existing features were changed and problems were repaired. For a more detailed description of the changes and to download the model, check out the links below.

Release Notes: ...

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TagsHEC-HMS,