bf_eckhardt: Eckhardt two parameter recursive digital filter
In HYDauer/FlowScreen: Daily Streamflow Trend and Change Point Screening

Description Usage Arguments Value Author(s) References Examples

This function takes vector of discharge data and estimates the baseflow

1	bf_eckhardt(discharge, a, BFI)

`discharge`	vector of daily discharge observations
`a`	Numeric value.
`BFI`	Numeric value.

Returns

Paul Whitfield

Eckhardt, K. 2012. Technical note: Analytical sensitivity analysis of two parameter recursive digital baseflow separation filter. Hydrology and Earth System Sciences 16: 451-455.

data(cania.sub.ts)
bf <- bf_eckhardt(cania.sub.ts$Flow, 0.97, 0.8)
plot(cania.sub.ts$Date, cania.sub.ts$Flow, type="l")
points(cania.sub.ts$Date, bf, type="l", col="blue")