The knowledge of atmospheric integrated precipitable water vapor (PWV), cloud liquid (LWP) and zenith wet delay (ZWD) is very useful in several fields. The aim of this work is to calculate inversion coefficients and algorithms in order to infer PWV, LWP and ZWD from ground-based microwave radiometric measurements. A large simulation of radiative parameters was performed by applying the Radiative Transfer Equation at K and Ka band. The best performance is obtained from an inversion algorithm of the 3rd order, based on brightness temperature at 23.8, 31.4 and 31.65 GHz. Comparison with retrieved PWV, LWP, ZWD and corresponding values from radiosonde profiles are performed. Results show a good agreement.
Esperimento Cabauw: algoritmi d’inversione per la stima di paramentri atmosferici con radiometri a microonde da terra
BASILI, Patrizia;BONAFONI, Stefania;
2008
Abstract
The knowledge of atmospheric integrated precipitable water vapor (PWV), cloud liquid (LWP) and zenith wet delay (ZWD) is very useful in several fields. The aim of this work is to calculate inversion coefficients and algorithms in order to infer PWV, LWP and ZWD from ground-based microwave radiometric measurements. A large simulation of radiative parameters was performed by applying the Radiative Transfer Equation at K and Ka band. The best performance is obtained from an inversion algorithm of the 3rd order, based on brightness temperature at 23.8, 31.4 and 31.65 GHz. Comparison with retrieved PWV, LWP, ZWD and corresponding values from radiosonde profiles are performed. Results show a good agreement.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
