UKFE (version 1.0.2)

Kappa3GF: Kappa3 distribution growth factors

Description

Estimated growth factors as a function of return period, with inputs of Lcv & LSkew (linear coefficient of variation & linear skewness)

Usage

Kappa3GF(lcv, lskew, RP)

Value

Kappa3 distribution estimated growth factor

Arguments

lcv

linear coefficient of variation

lskew

linear skewness

RP

return period

Author

Anthony Hammond

Details

Growth factors are calculated by the method outlined in Kjeldsen, T (2019), 'The 3-parameter Kappa distribution as an alternative for use with FEH pooling groups.'Circulation - The Newsletter of the British Hydrological Society, no. 142

Examples

# Get an ungauged pooled Lcv and LSkew for catchment 15006
pooled_res <- as.numeric(QuickResults(GetCDs(15006), plot = FALSE)[[2]])

# Calculate Kappa growth factor for the 100-year flood
Kappa3GF(pooled_res[1], pooled_res[2], RP = 100)