Trends in rainfall erosivity in NE Spain at annual, seasonal and daily scales, 1955–2006
نویسندگان
چکیده
منابع مشابه
Evaluation of the Relationship between the Nao and Rainfall Erosivity in Ne Spain during the Period 1955-2006
Rainfall erosivity is the ability of precipitation to erode soil. Microerosion processes due to the impact of raindrops on the soil – rainsplash – represent an important mechanism of detachment of soil particles, which might be removed thereafter by surface runoff. The annual and interannual patterns of rainfall erosivity are controlled by the variability of rainfall intensity. This study analy...
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Rainfall is one the main drivers of soil erosion. The erosive force of rainfall is expressed as rainfall erosivity. Rainfall erosivity considers the rainfall amount and intensity, and is most commonly expressed as the R-factor in the USLE model and its revised version, RUSLE. At national and continental levels, the scarce availability of data obliges soil erosion modellers to estimate this fact...
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A general procedure is presented for calibrating a model for rainfall erosivity based on daily rainfall. The approach is based on probability distributions of wet-day precipitation amount and monthly erosivities which are inferred from published data summaries. The calibrated model was tested by comparisons with erosivities computed from hourly precipitation data. Model results were generally c...
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Rainfall erosivity as a dynamic factor of soil loss by water erosion is modelled intra-annually for the first time at European scale. The development of Rainfall Erosivity Database at European Scale (REDES) and its 2015 update with the extension to monthly component allowed to develop monthly and seasonal R-factor maps and assess rainfall erosivity both spatially and temporally. During winter m...
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This paper presents rainfall erosivity values derived from a 7-year rainfall recording in the Cape Verde islands, Central East Atlantic. The data set consisted of 63 storm events, continuously registered in 15-min intervals. Kinetic energy of storm rainfall corresponded to established values in other tropical locations. Two algorithms to estimate erosivity, expressed as energy times intensity, ...
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ژورنال
عنوان ژورنال: Hydrology and Earth System Sciences
سال: 2012
ISSN: 1607-7938
DOI: 10.5194/hess-16-3551-2012