EarSunDis

<code>EarSunDis</code> returns the inverse earth-sun distance.

Calculation of Evapotranspiration by FAO Penman-Monteith equation based on Allen, R. G., Pereira, L. S., Raes, D., Smith, M. (1998, ISBN:92-5-104219-5) "Crop evapotranspiration - Guidelines for computing crop water requirements - FAO Irrigation and drainage paper 56".

Ali Ahani

FAO56

Evapotranspiration Based on FAO Penman-Monteith Equation

EarSunDis function

<dl><dt>date</dt>
<dd>Optional. A character string that denotes the date in the format "Year-Month-Day" or "Year/Month/Day".</dd></dl>

Arguments

<a href="https://www.fao.org/3/x0490E/x0490e00.htm">Allen, R. G., Pereira, L. S., Raes, D., &amp; Smith, M. (1998).
 Crop evapotranspiration - Guidelines for computing crop water requirements - FAO Irrigation and drainage paper 56.
 Fao, Rome, 300(9), D05109.</a>

Reference

Inverse Earth-Sun Distance (d_r) — EarSunDis

<dl>

<dt>date</dt>
<dd>Optional. A character string that denotes the date in the format "Year-Month-Day" or "Year/Month/Day".</dd>

</dl>

<a href='https://www.fao.org/3/x0490E/x0490e00.htm'>Allen, R. G., Pereira, L. S., Raes, D., &amp; Smith, M. (1998).
 Crop evapotranspiration - Guidelines for computing crop water requirements - FAO Irrigation and drainage paper 56.
 Fao, Rome, 300(9), D05109.</a>

EarSunDis: Inverse Earth-Sun Distance (d_r)

Description

Usage

Value

Arguments

Reference

Details

See Also

Examples