Evaluating Error of Temporal Disaggregation from Daily into Hourly Rainfall using Heytos Model at Sampean Catchments Area

Entin Hidayah, Nadjadji Anwar, Edijatno Edijatno, Nur Iriawan


Developing a rainfall-runoff model sufficient to flood prediction hourly rainfall data. Lack of automatic rain gauge for high resolution rainfall in catchment area can be an obstacle for the modeling. Otherwise, the manual rain gauges may spread on all of catchments areas, providing daily rainfall. Daily rainfall disaggregation to hourly rainfall is an innovation to get higher temporal resolution of the rainfall. This paper attempts to evaluate the implementation of rainfall disaggregation model in Sampean Catchments Area using Heytos. The proposed parameter optimation use Moment Performance model that tested by calibrating it with available hourly data. The results of model indicated that only data within five months had good performance. The estimation result showed that relative error total of January, February, August, November, and December was less than one. In case of March, April, May, June, July, September, and October the model could not result respectively to generate model.


disaggregation rainfall; daily; hourly; Heytos

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Onof and H. S. Wheater, 1993, “Modelling of British rainfall using a random parameter Bartlett-Lewis Rectangular Pulse Model”, Journal of Hydrology, 149, 67- 95.

C .Onof and H. S. Wheater, 1994, “Improvements to the modelling of British rainfall using a modified random parameter Bartlett-Lewis rectangular pulse model”, Journal of Hydrology, 157, 177-195.

Onof and K. Arrnbjerg-Nielsen, 2009, “Quantification of anticipated future changes in high resolution design rainfall for urban area”, Atmospheric Research, 92, 350-363.

Koutsoyiannis and A. Manetas, 1996, “Simple disaggregation by accurate adjusting procedures”, Water Resour. Res., 32(7) 2105-2117.

Koutsoyiannis and C. Onof, 2001, “Rainfall disaggregation using adjusting procedures on a Poisson cluster model”, Journal of Hydrology, 246, 109-122.

J. D. Cryer, 1986, Time Series Analysis, Massachusetts: PWS Publishers.

J. C. Smithers, G. G. S. Pegram, and R. E. Schulz, 2002, “Design rainfall estimation in South Africa using Bartlett-Lewis

rectangular pulse rainfall models”, Journal of Hydrology, 258, 83-99.

K. M. Wong, 2000, Disaggregation of rainfall time series using adjustments.

P. Fytilas, 2002, Multivariate Rainfall Disaggregation at a Fine Time Scale Diploma Thesis Submitted at the University of

Rome “La Sapienza.”

R. Chandler and H. Wheater, 1998, “Climate change detection using generalized linear models for rainfall, A case study from the West of Ireland, II, Modelling of rainfall amounts on wet days”, Technical report, no. 195, Department of Statistical Science, University College London (http://www.ucl.ac.uk/Stats/research/abstracts.html).

Rodriquez-Iturbe, D. R. Cox, and V. S. Isham, 1987, “Some models for rainfall based on stochastic point process”, Proc R Soc Land A 410; 269-288.

Rodriquez-Iturbe, D. R. Cox, and V. S. Isham, 1988, “A point process model: Futher developments”, Proc R Soc Lond A 417;283-298.

T. M. Carpenter and K. P. Georgakakos, 2006, Intercomparison of Lumped versus Distributed Hydrologic Model Ensemble Simulations on Operational Forecast Scales.

H. S. Wheater, et.al., 2005, “Spatial temporal rainfall modeling for flood risk estimation”. Stochastic Environmental Research and Risk Assessment, 19, 403–416.

DOI: http://dx.doi.org/10.12962/j20882033.v21i1.25


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