Computation of rainfall erosivity from daily precipitation amounts
نویسندگان
چکیده
منابع مشابه
Average Annual Precipitation from Daily Amounts
Thrce charts of the contiguous United States show (1) thc percentage of mean annual total precipitation contributed b j daily amounts of 0.50 i ~ ] . or greater, (2) the avcragc aiinual accuniulatioi~ of these daily amounts, and (3) the arcragc annual number of days having precipitation of 0.50 in. or greater.
متن کاملCalibration and Testing of a Daily Rainfall Erosivity Model
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 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...
متن کاملMapping monthly rainfall erosivity in Europe
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...
متن کاملShort communication Rainfall erosivity in Cape Verde
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: Science of The Total Environment
سال: 2018
ISSN: 0048-9697
DOI: 10.1016/j.scitotenv.2018.04.400