cal_windSpeed_Canopy

Calculating wind speed above and within the canopies.

Supports the calculation of meteorological characteristics in
evapotranspiration research and reference crop evapotranspiration, and offers
three models to simulate crop evapotranspiration and soil water balance in
the field, including single crop coefficient and dual crop coefficient,
as well as the Shuttleworth-Wallace model. These calculations main refer to
Allen et al.(1998, ISBN:92-5-104219-5), Teh (2006, ISBN:1-58-112-998-X), and
Liu et al.(2006) <doi:10.1016/j.agwat.2006.01.018>.

Minguo Liu

simET

Tools for Simulation of Evapotranspiration of Field Crops and
Soil Water Balance

Huimin Yang

cal_windSpeed_Canopy function

<dl><dt>z</dt>
<dd>the height (m)</dd>
<dt>h</dt>
<dd>the plant height (m)</dd>
<dt>u_</dt>
<dd>the friction velocity (m/s)</dd>
<dt>k</dt>
<dd>the von Karman constant (0.4)</dd>
<dt>d</dt>
<dd>zero plane displacement height (m)</dd>
<dt>z0</dt>
<dd>the crop roughness length(m)</dd>
<dt>nu</dt>
<dd>the wind speed extinction coefficient (taken as 2)</dd></dl>

Arguments

Calculating wind speed above and within the canopies. — cal_windSpeed_Canopy

<dl>

<dt>z</dt>
<dd>the height (m)</dd>


<dt>h</dt>
<dd>the plant height (m)</dd>


<dt>u_</dt>
<dd>the friction velocity (m/s)</dd>


<dt>k</dt>
<dd>the von Karman constant (0.4)</dd>


<dt>d</dt>
<dd>zero plane displacement height (m)</dd>


<dt>z0</dt>
<dd>the crop roughness length(m)</dd>


<dt>nu</dt>
<dd>the wind speed extinction coefficient (taken as 2)</dd>

</dl>

cal_windSpeed_Canopy: Calculating wind speed above and within the canopies.

Description

Usage

Value

Arguments