Nowadays, both operational and research C-band and X-band weather radars are widely used worldwide to estimate precipitation with a high temporal and spatial resolution. However, at those frequencies, both the horizontal and differential reflectivity can be altered by the effect of attenuation of waves propagating through precipitation. The latter effect can be particularly severe in case of intense precipitation and is more pronounced for X-band that for C-band. In the practice, ad hoc correction algorithms, such as those based on a relation between specific attenuation and differential phase shift, are adopted to compensate for attenuation effects. However, the verification of the accuracy of the latter algorithm is a challenging task basically due to the absence of a set of data that can be used as the reference. In this paper, we present the results of a preliminary analysis that, exploiting the synergy of weather radar and digital broadcasting satellite receivers data, aims to check and validate, and possibly tune, the attenuation correction algorithms adopted for C- and X-band weather radars.
Exploiting the synergy between weather radar measurements and digital broadcasting satellite receivers to improve radar retrievals
Giannetti F.Co-primo
Writing – Review & Editing
;
2020-01-01
Abstract
Nowadays, both operational and research C-band and X-band weather radars are widely used worldwide to estimate precipitation with a high temporal and spatial resolution. However, at those frequencies, both the horizontal and differential reflectivity can be altered by the effect of attenuation of waves propagating through precipitation. The latter effect can be particularly severe in case of intense precipitation and is more pronounced for X-band that for C-band. In the practice, ad hoc correction algorithms, such as those based on a relation between specific attenuation and differential phase shift, are adopted to compensate for attenuation effects. However, the verification of the accuracy of the latter algorithm is a challenging task basically due to the absence of a set of data that can be used as the reference. In this paper, we present the results of a preliminary analysis that, exploiting the synergy of weather radar and digital broadcasting satellite receivers data, aims to check and validate, and possibly tune, the attenuation correction algorithms adopted for C- and X-band weather radars.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
