Group

Regime Characteristics

32 Parameters

Group 1:Magnitude of monthly water conditions

Magnitude Timing

Mean value for each calendar month

Group 2:Magnitude and duration of annual extreme water conditions

Magnitude

Duration

Annual min/max of 1 day means Annual min/max of 3 day means Annual min/max of 7 day means Annual min/max of 30 day means Annual min/max of 90 day means

Group 3:Timing of annual extreme water conditions

Timing

Julian date of each annual 1 day minimum and maximum

Group 4:Frequency and duration of high and low pulses

Frequency

Duration

Number of high and low pulses each year Mean duration of high and low pulses

Group 5: Rate/frequency of consecutive water-condition changes

Rates of Change

Means of all positive differences between daily values Means of all negative differences between daily values Number of rises Number of falls