Characteristics on flow duration

Low flow events

dl1	Mean annual minimum daily flow.
dl2	Mean annual minimum of 3-day daily flow.
dl3	Mean annual minimum of 7-day daily flow.
dl4	Mean annual minimum of 30-day daily flow.
dl5	Mean annual minimum of 90-day daily flow.
dl6	Variability in annual minimum daily flow.
dl7	Variability in annual minimum of 3-day daily flow.
dl8	Variability in annual minimum of 7-day daily flow.
dl9	Variability in annual minimum of 30-day daily flow.
dl10	Variability in annual minimum of 90-day daily flow.
dl11	Mean annual minimum daily flow normalised by overall median daily flow.
dl12	Mean annual minimum of 7-day daily flow normalised by overall median daily flow.
dl13	Mean annual minimum of 30-day daily flow normalised by overall median daily flow.
dl14	Q75 exceedance value normalised by overall median daily flow.
dl15	Q90 exceedance value normalised by overall median daily flow.
dl16	Median low-flow pulse duration.
dl17	Variability in low-flow pulse duration.
dl18	Mean annual number of zero flow days.
dl19	Variability in annual number of zero flow days.
dl20	Mean annual number of zero flow days.

High flow events

dh1	Mean annual maximum daily flow.
dh2	Mean annual maximum of 3-day daily flow.
dh3	Mean annual maximum of 7-day daily flow.
dh4	Mean annual maximum of 30-day daily flow.
dh5	Mean annual maximum of 90-day daily flow.
dh6	Variability in annual maximum daily flow.
dh7	Variability in annual maximum of 3-day daily flow.
dh8	Variability in annual maximum of 7-day daily flow.
dh9	Variability in annual maximum of 30-day daily flow.
dh10	Variability in annual maximum of 90-day daily flow.
dh11	Mean annual maximum daily flow normalised by overall median daily flow.
dh12	Mean annual maximum of 7-day daily flow normalised by overall median daily flow.
dh13	Mean annual maximum of 30-day daily flow normalised by overall median daily flow.
dh14	Q5 exceedance monthly mean flow value normalised by overall mean monthly mean flow.
dh15	Median high-flow pulse duration.
dh16	Variability in high-flow pulse duration.
dh17	Mean duration of flow events above the median flow for the whole record.
dh18	Mean duration of flow events above three times the median flow for the whole record.
dh19	Mean duration of flow events above seven times the median flow for the whole record.
dh20	Mean duration of flow events above Q25 for the whole record.
dh21	Mean duration of flow events above Q75 for the whole record.