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start:hype_model_description:processes_above_ground [2019/03/19 16:12]
cpers [Evaporation]
start:hype_model_description:processes_above_ground [2019/08/27 15:34]
cpers [Alternative potential evaporation models]
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 === Model 4 - Priestly-Taylor === === Model 4 - Priestly-Taylor ===
-The Priestly-taylor ​potential evaporation depends on net downward radiation (//​netrad//​),​ slope of saturated vapour pressure curve (//​dsatvap//​),​ latent heat of vaporization (<​m>​lambda</​m>​) and a psychrometric constant (<​m>​gamma</​m>​). One general parameter (//​alfapt//​) are used and one land use dependent (crop coefficient //kc4// or //kc//).+The Priestly-Taylor ​potential evaporation depends on net downward radiation (//​netrad//​),​ slope of saturated vapour pressure curve (//​dsatvap//​),​ latent heat of vaporization (<​m>​lambda</​m>​) and a psychrometric constant (<​m>​gamma</​m>​). One general parameter (//​alfapt//​) are used and one land use dependent (crop coefficient //kc4// or //kc//).
  
 <m> epot_{base} = MAX(0,​kc*alfapt * {dsatvap*netrad/​lambda*(dsatvap+gamma)}) </m> <m> epot_{base} = MAX(0,​kc*alfapt * {dsatvap*netrad/​lambda*(dsatvap+gamma)}) </m>
start/hype_model_description/processes_above_ground.txt ยท Last modified: 2024/02/21 08:54 by cpers