n_jarrett1984

<code>n_jarrett1984</code> calculate Manning's n using the Jarrett (1984) Method for
estimating grain roughness

Estimates frictional constants for hydraulic analysis
of rivers. This HYDRaulic ROughness CALculator (HYDROCAL) was previously
developed as a spreadsheet tool and accompanying documentation by McKay and
Fischenich (2011, <https://erdc-library.erdc.dren.mil/jspui/bitstream/11681/2034/1/CHETN-VII-11.pdf>).

Colton Shaw

HYDROCAL

Hydraulic Roughness Calculator

S. Kyle McKay

n_jarrett1984 function

<dl><dt>radius</dt>
<dd>hydraulic radius (R) in meters. The original model was calibrated for
0.15 m &lt; R &lt; 1.68 m</dd>
<dt>slope</dt>
<dd>channel slope (S) in m/m. The original model was calibrated for
0.002 &lt; S &lt; 0.04.</dd>
<dt>restrict</dt>
<dd>allows for function parameters to restrict certain values. Type bool. Default TRUE.</dd></dl>

Arguments

Compute grain roughness via Jarrett (1984) — n_jarrett1984

<dl>

<dt>radius</dt>
<dd>hydraulic radius (R) in meters. The original model was calibrated for
0.15 m &lt; R &lt; 1.68 m</dd>


<dt>slope</dt>
<dd>channel slope (S) in m/m. The original model was calibrated for
0.002 &lt; S &lt; 0.04.</dd>


<dt>restrict</dt>
<dd>allows for function parameters to restrict certain values. Type bool. Default TRUE.</dd>

</dl>

n_jarrett1984: Compute grain roughness via Jarrett (1984)

Description

Usage

Value

Arguments

References

Examples