eflowcalc.mh19
- eflowcalc.mh19(flows, datetimes, hydro_years, drainage_area)
Skewness in annual maximum daily flow.
- Calculation Details
Compute the maximum daily flow for each hydrological year in the record. Calculate the skewness using the following equation:
N**2 * Σ(log(Q)) - 3 * N * Σ(log(Q)) * Σ(log(Q)**2) + 2 * Σ(log(Q)**3) ---------------------------------------------------------------------- N * (N-1) * (N-2) * (σ(log(Q)))**3
where N is the number of years in the record, Q is the vector of annual maxima, log in the decimal logarithm, Σ is the arithmetic sum, and σ is the standard deviation.