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Comparazione di dati pluviometrici e satellitari orientata alla rilevazione delle criticità legate alla desertificazione

Authors: Peppino, Cinzia; NOVELLI, Antonio; CARADONNA, Grazia; PAGANO, ALESSANDRO; TARANTINO, Eufemia; FRATINO, Umberto;

Comparazione di dati pluviometrici e satellitari orientata alla rilevazione delle criticità legate alla desertificazione

Abstract

Recenti analisi dei trend climatici in Italia, hanno evidenziato un aumento del numero, intensità e durata degli eventi pluviometrici estremi in concomitanza all'accentuarsi di fenomeni siccitosi. L’incremento di tali fenomeni è uno dei più allarmanti processi di depauperazione del territorio che affligge le Regioni caratterizzate da un clima mediterraneo semi-arido come la Puglia. L’individuazione di aree potenzialmente vulnerabili alla desertificazione a causa della variabilità climatica e morfologica richiede il ricorso di metodologie standardizzate e l’utilizzo di dati sinottici in grado di descrivere lo status quo dell’area in esame. Scopo di questo studio è il confronto di dati climatico-pluviometrici e satellitari al fine di individuare, nell’area di studio, pattern significativi di criticità territoriale. Il confronto è avvenuto considerando congiuntamente l’informazione derivante dalla serie storica Normalized Differenced Vegetation Index (NDVI) del dato satellitare SPOT Vegetation e le serie storiche pluviometriche della Regione Puglia, fornite dalla protezione civile. In particola modo, il dato satellitare SPOT copre un arco temporale di 13 anni mentre il dato pluviometrico, fornito dalla protezione civile, è stato ricavato da 125 diverse stazioni di misura distribuite nel territorio regionale. Al fine di effettuare una comparazione non affetta da singolarità territoriali il dato pluviometrico multitemporale è stato sintetizzato mediante l’utilizzo dello Standardized Precipitation Index (SPI).

Recent studies have been demonstrated an increasing of extreme pluviometric events coupled with a subsequent increasing of arid time period. This climatic phenomenon is common in Mediterranean areas, as the Apulian Region, characterized by semi-arid climate. The identification of areas potentially affected by desertification requires the use of standardized methodologies and synoptic data over the selected territories. In this study were simultaneously used climatic-pluviometric data and satellite data in order to find territorials alerts. Particularly, were used Normalized Differenced Vegetation Index (NDVI) (13 years of observations) and pluviometric times series (125 measurements points over the territory) respectively provided by the SPOT Vegetation satellite and from local authorities (Protezione Civile). Lastly, the satellite data and the climatic data were analyzed by means of the Standardized Precipitation Index (SPI) in order to standardize the precipitation data over the territory

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Italy
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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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Average
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