Summary
In the present study the Standardised Precipitation Index (SPI) is used to detect drought events in spatial and temporal basis. Using monthly precipitation data from 23 stations well spread over Greece and for a period of 51 years, a classification of drought is performed, based on its intensity and duration. Results indicate that, mild and moderate droughts reduce from north to south and from west to east on the 3- and 6-months time scale, while for the class of severe drought, the frequencies in the southern part of Greece are higher than in the other parts of the country. Furthermore the frequency of occurrence of severe and extreme drought conditions is very low over the whole Greek territory on the 12-month running time scale. Finally SPI was compared to the “de Martonne aridity index (I)” and a satisfactory correlation between them was found.
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Livada, I., Assimakopoulos, V. Spatial and temporal analysis of drought in greece using the Standardized Precipitation Index (SPI). Theor. Appl. Climatol. 89, 143–153 (2007). https://doi.org/10.1007/s00704-005-0227-z
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DOI: https://doi.org/10.1007/s00704-005-0227-z