1. Magnitude of monthly water conditions |
Mean value for each calendar
month: Mean flow in January; Mean flow in February; Mean flow in
March; Mean flow in April; Mean flow in May; Mean flow in June; Mean
flow in July; Mean flow in August; Mean flow in September; Mean flow in
October; Mean flow in November; Mean flow in December
|
2. Magnitude and duration of annual extreme water conditions |
1-day minimum;3-day minimum; 7-day minimum; 30-day minimum;
90-day minimum; 1-day maximum; 3-day maximum; 7-day maximum; 30-day
maximum; 90-day maximum; Base flow index (7-day minimum flow/mean flow
for year) |
3. Timing of annual extreme water conditions
|
Day of year of each annual 1-day maximum: Date of minimum;
Day of year of each annual 1-day minimum: Date of
maximum;
|
4. Frequency and duration of high and low pulses
|
Number of low pulses within each water year: Low pulse count;
Mean or median duration of low pulses (days): Low pulse
duration;
Number of high pulses within each water year: High pulse
count;
Mean or median duration of high pulses (days) High pulse
duration
|
5. Rate and frequency of water condition changes
|
Mean of all positive differences between consecutive daily values:
Rise rates;
Mean of all negative differences between consecutive daily values:
Fall rates;
Number of hydrologic reversals: Numbers of reversals
|