cal_ActualVapourPressure_from_psychrometricData

The actual vapour pressure can be determined from the difference
 between the dry and wet bulb temperatures, the so-called wet bulb depression.

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_ActualVapourPressure_from_psychrometricData function

<dl><dt>Twet, Tdry</dt>
<dd>wet bulb depression, with Tdry the dry bulb and Twet the wet bulb temperature (degrees Celsius).</dd>
<dt>P</dt>
<dd>is the atmospheric pressure (kPa).</dd>
<dt>type</dt>
<dd>psychrometer type ("Asmann type","natural ventilated","non-ventilated").</dd></dl>

Arguments

Actual vapour pressure (ea) derived from psychrometric data — cal_ActualVapourPressure_from_psychrometricData

<dl>

<dt>Twet, Tdry</dt>
<dd>wet bulb depression, with Tdry the dry bulb and Twet the wet bulb temperature (degrees Celsius).</dd>


<dt>P</dt>
<dd>is the atmospheric pressure (kPa).</dd>


<dt>type</dt>
<dd>psychrometer type ("Asmann type","natural ventilated","non-ventilated").</dd>

</dl>

cal_ActualVapourPressure_from_psychrometricData: Actual vapour pressure (ea) derived from psychrometric data

Description

Usage

Value

Arguments

References