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LONG-TERM VARIABILITY IN PRECIPITATIONS IN TURDA (ROMANIA)

Keywords: precipitations , long-term variability , trend , Standardized Precipitations Index (SPI) , Turda

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Abstract:

This study has as main purpose the analysis of long-term precipitations variability in Turda. The analysis is based on the time series of climatic data from Turda weather station which covers a period of 56 years (1951-2006). The nonparametric tests to determine temporal trends in climatic data sets are used. The evolution of the observed parameter was complemented by the analysis of the secular trend. Extreme precipitation events were identified using the Standardized Precipitation Index (SPI) computed for a period of 48 months. For each season of drought or wet events, the interval for the accumulation of the deficit or excess of precipitation was at least 4 years. The parametric analysis of long-term drought and wet events proves that the greatest part of the major and medium intensity events are associated with the same periods of pluvial deficit or excess.

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