INVESTIGADORES
AVILA Eldo Edgardo
congresos y reuniones científicas
Título:
Vapour density field of a mixed-phase cloud
Autor/es:
NESVIT E. CASTELLANO; ELDO E. AVILA; CLIVE P. R. SAUNDERS
Lugar:
Perugia - Italia
Reunión:
Conferencia; IUGG XXIV; 2007
Institución organizadora:
International Union of Geodesy and Geophysics
Resumen:
This work presents a simple theoretical model based on the electrostatic image charges method to calculate the steady-state water vapour density field for a population of supercooled cloud droplets and ice crystals. The model allows a determination of the vapour density among the cloud droplets and ice particles and obtains a representative vapour density of the system which is called the ambient vapour density of the mixed-phase cloud. The results show that the ambient vapour density is close to the saturated value over water in clouds where the cloud droplet concentration is much higher than the ice crystal concentration and close to the ice saturation value in glaciated clouds. A parameterization of the ambient vapour density is given as a function of the sizes and concentrations of the cloud droplets and ice crystals.