Analisi della affidabilità dei database pluviometrici globali a scala locale. Applicazione al territorio siciliano

Research output: Contribution to conferenceOther

Abstract

[automatically translated] In recent years, systems of measurement and estimation of rainfall, have been enriched by the possibility of obtaining estimates through data acquired by satellite sensors. The estimation products thus obtained are still often highly distorted. For this reason, the estimates on the basis of only the satellite data, are further processed through the use of datasets that collect precipitation data from pluviografiche networks in order to reduce the distortion that characterizes the satellite data. It is desirable that these data sets are as precise in order to provide suitable data to the correction of the satellite data and in particular to the reduction of the distortion. In the study reported below it is described comparative analysis between the main of these global dataset, ie the precipitation estimates of the Global Precipitation Climatology Centre (GPCC) and those provided by a pluviografica network characterized by a higher density relative to the Sicilian territory. The results indicate that there are major discrepancies between the two estimates, localized especially in the higher altitude areas. The hypothesis of an inappropriate sampling of rainfall in these areas is confirmed by observation of the locations of stations used by the GPCC and an analysis of the results of sampling carried out with such a network. localized in particular in the higher altitude areas. The hypothesis of an inappropriate sampling of rainfall in these areas is confirmed by observation of the locations of stations used by the GPCC and an analysis of the results of sampling carried out with such a network. localized in particular in the higher altitude areas. The hypothesis of an inappropriate sampling of rainfall in these areas is confirmed by observation of the locations of stations used by the GPCC and an analysis of the results of sampling carried out with such a network.
Original languageItalian
Pages1-11
Number of pages0
Publication statusPublished - 2012

Cite this