Click on “Download PDF” for the PDF version or on the title for the HTML version.


If you are not an ASABE member or if your employer has not arranged for access to the full-text, Click here for options.

Estimating Single Storm Erosion Index

Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.org

Citation:  Transactions of the ASAE. 37(3): 785-791. (doi: 10.13031/2013.28141) @1994
Authors:   V. Bagarello, F. D’Asaro
Keywords:   Rainfall, Erosion, USLE

The computation of the single-storm erosion index, EI, which is the basis to determine the rainfall factor R of the Universal Soil Loss Equation (USLE), is tedious and time-consuming and requires a continuous record of rainfall intensity. In this article, simplified methods for estimating the single-storm EI in the Mediterranean area are developed. In particular, data from 32 Sicilian locations and 3 additional locations in continental south Italy are at first used to derive and test a regionalized relationship for estimating the EI index from only storm amount data. A potential relationship with an exponent equal to 1.54 is obtained. Regionalized relationships for estimating the kinetic energy and EI for an event as a function of rainstorm amount and maximum 30-min intensity are also developed and tested. Since in the Mediterranean area an erosive event may generally last several days, a rule of grouping daily rainfall data in order to reproduce the amount of each erosive event is finally developed and tested.

(Download PDF)    (Export to EndNotes)