Catalogo dei prodotti della ricerca
IRIS è la soluzione IT che facilita la raccolta e la gestione dei dati relativi alle attività e ai prodotti della ricerca. Fornisce a ricercatori, amministratori e valutatori gli strumenti per monitorare i risultati della ricerca, aumentarne la visibilità e allocare in modo efficace le risorse disponibili.
EnglishHydrometeorological and radio propagation applications can benefit from the capability to model the time evolution of raindrop size distribution (RSD). A new stochastic vector autoregressive semi-Markov model is proposed to randomly synthesize (generate) the temporal series of the three driving parameters of a normalized Gamma RSD. Rainfall intermittence is reproduced through a discrete semi-Markov process, modeled from disdrometer measurements using two-state analytical statistics of rain and dry period duration. The overall model is set up by means of a large set of disdrometer measurements, collected from 2003 to 2005 at Chilbolton, U.K. The driving parameters of the retrieved RSD are estimated using three approaches: the Gamma moment method and the 1-D and 3-D maximum-likelihood methods. Interestingly, these methodologies lead to quite different results, particularly when one is interested in evaluating RSD higher order moments such as the rain rate. The accuracy of the proposed RSD time-series generation technique is evaluated against available disdrometer measurements, providing excellent statistical scores.
Analysis and synthesis of rainfall time series using disdrometer data / Montopoli, M; Marzano, FRANK SILVIO; G., Vulpiani. - In: IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING. - ISSN 0196-2892. - STAMPA. - 46(2008), pp. 466-478. [10.1109/TGRS.2007.909102]
Scheda prodotto non validato
Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo
| Titolo: | Analysis and synthesis of rainfall time series using disdrometer data | |
| Autori: | ||
| Data di pubblicazione: | 2008 | |
| Rivista: | ||
| Citazione: | Analysis and synthesis of rainfall time series using disdrometer data / Montopoli, M; Marzano, FRANK SILVIO; G., Vulpiani. - In: IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING. - ISSN 0196-2892. - STAMPA. - 46(2008), pp. 466-478. [10.1109/TGRS.2007.909102] | |
| Handle: | http://hdl.handle.net/11573/43788 | |
| Appartiene alla tipologia: | 01a Articolo in rivista |
File allegati a questo prodotto
http://hdl.handle.net/11573/43788
Copyright © 2022