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Trends in rainfall erosivity in NE Spain at annual, seasonal and daily scales, 1955-2006

AuthorsAngulo-Martínez, Marta ; Beguería, Santiago
Issue DateOct-2012
PublisherEuropean Geosciences Union
CitationAngulo-Martínez M, Beguería S. Trends in rainfall erosivity in NE Spain at annual, seasonal and daily scales, 1955-2006. Hydrological and Earth System Sciences 16 (10): 3551-3559 (2012)
AbstractRainfall erosivity refers to the ability of precipitation to erode soil, and depends on characteristics such as its total volume, duration, and intensity and amount of energy released by raindrops. Despite the relevance of rainfall erosivity for soil degradation prevention, very few studies have addressed its spatial and temporal variability. In this study the time variation of rainfall erosivity in the Ebro Valley (NE Spain) is assessed for the period 1955–2006. The results show a general decrease in annual and seasonal rainfall erosivity, which is explained by a decrease of very intense rainfall events whilst the frequency of moderate and low events increased. This trend is related to prevailing positive conditions of the main atmospheric teleconnection indices affecting the West Mediterranean, i.e. the North Atlantic Oscillation (NAO), the Mediterranean Oscillation (MO) and the Western Mediterranean Oscillation (WeMO).
Description9 Pags., 4 Tabls., 4 Figs.
Publisher version (URL)http://dx.doi.org/10.5194/hess-16-3551-2012
Appears in Collections:(EEAD) Artículos
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