peak: Rational method to calculate peak discharge
In VFS: Vegetated Filter Strip and Erosion Model

Description Usage Arguments Value Author(s) References Examples

Very simple estimate of peak discharge.

1	peak(intensity, area, c = 0.25)

`intensity`	Precipitation intensity (mm/hr).
`area`	Field area (ha).
`c`	Runoff coefficient, related to slope, soil type, and land cover (0-1). Forest may be 0.05 - 0.25, while paved surfaces may be 0.95.

Peak discharge (m^3/s).

Sarah Goslee

Hromadka, T. V, II and Whitley, R. J. (1994) The rational method for peak flow rate estimation. Water Res Bull 30(6), 1001–1009.

    # peak discharge from a grassy meadow
    peakd.meadow <- peak(intensity = 55, area = 1, c = 0.1)

    # peak discharge from an urban area
    peakd.urban <- peak(intensity = 55, area = 1, c = 0.8)