[R] pulling recessions out of a hydrograph

[stephen sefick]

I have done this. I would use zoo for the time series part, and I think I
wrote a function using the min max after a period to locate the peak, go to
the peak, and calculate the slope 4 hours afterward. If I can locate the
code I don't mind sharing, but it is buried on my PhD machine.

On Feb 5, 2018 12:04 PM, "Janet Choate" <jsc.eco at gmail.com> wrote:

> Dear R community,
>
> I'm hoping someone out there has perhaps done this and can share their code
> and/or expertise with me.
>
> I need to pull recession periods out of a hydrograph - can anyone help me
> with this?
> I want to create a subset from streamflow data that consists of just the
> recession curves - the decreasing runoff after the passage of a peak flow.
>
> would really appreciate any help on this!
> Janet
> --
> Tague Team Lab Manager
> 1005 Bren Hall
> UCSB, Santa Barbara, CA.
>
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