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Trend analysis of the precipitation in Spain over the period 1961-2010

AutorRios Cornejo, D.; Penas, Ángel ; del Río, Sara
Fecha de publicación9-jul-2014
EditorSociedad Española de Geobotánica
CitaciónXXIV Jornadas Internacionales de Fitosociología (2014)
I Congreso de la Sociedad Española de Geobotánica (2014)
ResumenThis work analyses monthly, seasonal and annual precipitation trends in continental Spain between 1961 and 2010, according to the data from 144 weather stations widely distributed throughout the study area. The magnitude and sign of the trends were evaluated with Sen¿s slope estimator and their statistical significances were determined with the nonparametric Mann-Kendall test. In a broad sense, the rainfall trends for the period and the study area are mainly non non-significant at the monthly, seasonal and annual timescales. By and large, the highest number of weather stations with positive significant trends was found in September and October, whereas the highest number of stations with negative significant trends was observed in February, June, winter, summer and at the annual timescale. The most pronounced decreases occurred in June (¿18.58 mm/50years) and in summer (-27.67 mm/50years) in the south, which points to an intensification of mediterraneity in this area. We observed a sign asymmetry in significant rainfall trends during winter, spring and at the annual timescales between the north (negative) and the southeast (positive).
DescripciónTrabajo presentado a las: XXIV Jornadas Internacionales de Fitosociología.Conservación de hábitats naturales en Europa.--I Congreso de la Sociedad Española de Geobotánica (Gijón, 9-11 julio, 2014).
Versión del editorhttps://sites.google.com/site/24jornadasdefitosociologia/
URIhttp://hdl.handle.net/10261/117747
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