EurekaMag.com logo
+ Translate

Calibration and testing of a daily rainfall erosivity model


, : Calibration and testing of a daily rainfall erosivity model. Transactions of the ASAE 33(5): 1612-1618

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 consistent with values based on hourly data and explained over 85% and 70%, respectively, of the variations in annual and event erosivities. Model results for extreme values (annual erosivities exceeded in 5% of the years and 1-in-20-year event erosivities) often substantially exceeded values computed for hourly data. To facilitate general use of the daily model, calibration coefficients were calculated for 33 sites in the eastern and central U.S.

(PDF 0-2 workdays service)

Accession: 002042062

Submit PDF Full Text: Here


Submit PDF Full Text

No spam - Every submission is manually reviewed

Due to poor quality, we do not accept files from Researchgate

Submitted PDF Full Texts will always be free for everyone
(We only charge for PDFs that we need to acquire)

Select a PDF file:
Close
Close

Related references

Haith, D.A.; Merrill, D.E., 1987: Evaluation of a daily rainfall erosivity model. A proposed model for calculating erosivity from daily rainfall data was tested at 23 locations in eastern and central United States. Testing involved comparison with erosivities determined from hourly rainfall data by Wischmeier and Smith. Model r...

Elsenbeer, H.; Cassel, D.K.; Tinner, W., 1993: A daily rainfall erosivity model for western Amazonia. Rainfall erosivities as defined by the R factor from the Universal Soil Loss Equation were determined for all events during a two-year period at the station La Cuenca in western Amazonia (Peru). Three methods based on a power relationship between...

Yu, B.; Rosewell, C.J., 1996: An assessment of a daily rainfall erosivity model for New South Wales. A rainfall erosivity model using daily rainfall amounts to estimate rainfall erosivity as tested for 29 sites in New South Wales to see whether such a model could adequately describe the temporal variation and seasonal distribution of rainfall ero...

Sharda, V.N.; Ojasvi, P.R., 2006: Development of daily rainfall erosivity model for sub-humid climate of outer Himalayas. An attempt has been made to develop rainfall erosivity model based on the daily rainfall amounts which is an easily available parameter for all the rain gauge stations. The study was conducted at the Central Soil and Water Conservation Research an...

Capolongo,D.; Diodato,N.; Mannaerts,C.M.; Piccarreta,M.; Strobl,R.O., 2008: Analyzing temporal changes in climate erosivity using a simplified rainfall erosivity model in Basilicata. The objective of this work was to investigate the magnitude, frequency and trends of rainfall erosivity in Basilicata (southern Italy), as an initial step in the study of the consequences of climatic change on soil environments in the central Medi...

Capolongo, D.; Diodato, N.; Mannaerts, C.M.; Piccarreta, M.; Strobl, R.O., 2008: Analyzing temporal changes in climate erosivity using a simplified rainfall erosivity model in Basilicata southern Italy. The objective of this work was to investigate the magnitude, frequency and trends of rainfall erosivity in Basilicata (southern Italy), as an initial step in the study of the consequences of climatic change on soil environments in the central Medi...

Yu, B.; Rosewell, C.J., 1996: Rainfall erosivity estimation using daily rainfall amounts for South Australia. The rainfall erosivity model relating storm erosivity to daily rainfall amounts was tested for 4 sites in South Australia where seasonal rainfall erosivity is generally out of phase with seasonal rainfall because of the predominant winter rainfall...

Hadda, M.S.; Sur, H.S.; Sandhu, K.S., 1991: Relationship between daily rainfall depth and erosivity. The relationship between daily rainfall and erosivity consists of a deterministic and a random component. The deterministic component was described by a power function, EI = bdn, where EI is erosivity, b and n are empirical constants and d is dail...

Hreiche, A.; Bocquillon, C.; Najem, W.; Servat, E.; Dezetter, A., 2003: Calibration of a conceptual model of daily rainfall-runoff following annual levels. A conceptual model of rainfall-runoff specific to the Mediterranean climate is described. The calibration of this model is detailed for the Nahr-Beyrouth basin. Following testing for 8 Mediterranean drainage basins, calibration of parameters posed...

Taley, S.M.; Dalvi, V.B., 1992: Development of models for estimating erosivity for a day from daily rainfall data. Seven years daily rainfall data for the period from 1979 to 1985 and 1980 to 1986 recorded by automatic recording type rain gauge were collected for Akola and Buldana districts of Vidarbha, respectively. Data were analysed for computing EI-1440 an...