ET0_PT

Calculates daily reference evapotranspiration amounts using the
Priestley-Taylor method.

Calculates daily climate water balance for irrigation purposes and
also calculates the reference evapotranspiration (ET) using three methods,
Penman and Monteith (Allen et al. 1998, ISBN:92-5-104219-5);
Priestley and Taylor (1972) <doi:10/cr3qwn>; or Hargreaves and Samani (1985)
<doi:10.13031/2013.26773>. Users may specify a management allowed depletion
(MAD), which is used to suggest when to irrigate. The functionality allows
for the use of crop and water stress coefficients as well.

Gabriel Constantino Blain

CropWaterBalance

Climate Water Balance for Irrigation Purposes

Graciela R. Sobierajski

Regina C. Matos Pires

Adam H. Sparks

Leticia L. Martins

ET0_PT function

<dl><dt>Tavg</dt>
<dd>A vector, 1-column matrix or data frame with daily average air temperature.</dd>
<dt>Rn</dt>
<dd>A vector, 1-column matrix or data frame with daily net radiation in
\(MJ m-2 day-1\).</dd>
<dt>G</dt>
<dd>Optional. A vector, 1-column matrix or data frame with daily soil heat flux
in \(MJ m-2 day-1\).
May be provided by <code>Soil_Heat_Flux</code></dd>
<dt>Coeff</dt>
<dd>Single number defining the Priestley and Taylor coefficient. Default is
1.26.</dd></dl>

Arguments

Reference Evapotranspiration Using the Preistley-Taylor Method — ET0_PT

<dl>

<dt>Tavg</dt>
<dd>A vector, 1-column matrix or data frame with daily average air temperature.</dd>


<dt>Rn</dt>
<dd>A vector, 1-column matrix or data frame with daily net radiation in
\(MJ m-2 day-1\).</dd>


<dt>G</dt>
<dd>Optional. A vector, 1-column matrix or data frame with daily soil heat flux
in \(MJ m-2 day-1\).
May be provided by <code>Soil_Heat_Flux</code></dd>


<dt>Coeff</dt>
<dd>Single number defining the Priestley and Taylor coefficient. Default is
1.26.</dd>

</dl>

ET0_PT: Reference Evapotranspiration Using the Preistley-Taylor Method

Description

Usage

Value

Arguments

Examples