Estimating Probable Maximum Precipitation for Linau River Basin in Sarawak
DOI:
https://doi.org/10.33736/jcest.138.2014Abstract
The probable maximum precipitation (PMP) is the greatest depth of precipitation for a given duration that is physically possible over a given size storm area at a particular geographical location at a certain time of the year. PMP is very important to be considered for the design of river regulating structures i.e Dams and Barrages to overcome any possible chance of overtopping failure as well as for public safety and hazards downstream of any of these structures. Especially if these structures located in the upstream of the of the populated town or city than the failure could damage severely such areas. As such the PMP convention is always a requirement as primary design dam/reservoir criteria when public safety is of concern. The PMP is used to derive Probable Maximum Flood (PMF), which further used in hydraulic modeling to check the impact assessments for such occasions. This paper focuses on estimation of PMP for Linau River Basin in Sarawak using statistical method proposed by World Meteorological Organization (WMO), which is described in its operational manual. Long Lidam and Long Laku are located in Linau River Basin but Long Laku has long discontinuity in the data set thus the rainfall series at Long Lidam is further used for PMP estimation. The missing data was in-filled using Belaga rain gauge station as Long Lidam rainfall has good correlation with Belaga rainfall data. Hershfield statistical method has been adopted to estimate the 24-hour duration PMP. The Probable Maximum Precipitation for 24-hour duration storm is estimated as 691 mm for the Linau River Basin.
References
WMO, 2009. "Manual for Estimation of Probable Maximum Precipitation (PMP)", Publication No. 1045, World Meteorological Organization, Geneva, 2009
M. C. Casas, R. Rodriquez, M. Prohom, A. Gazquez and A. Redano. (2010). "Estimation of the probable maximum precipitation in Barcelona (Spain)". Int. J. Climatol. [Online]. DOI: 10.1002/joc.2149. Available: www.interscience.wiley.com
https://doi.org/10.1002/joc.2149
J. K. Searcy and C. H. Hardison, "Double-mass curve," Manual of Hydrology: Part 1. Geological Survey Water-Supply Paper 1541-B, 1960.
Norconsult, 2014, "Pelagus Hydroelectric Project - Concept Report".
Entura, 2010, "Bakun Hydroelectric Project - Technical Risk Due Diligence Report".
M. M. Hasan and B.F.W. Croke, "Filling gaps in daily rainfall data: a statistical approach," in 20th Int. Congr. on Modelling and Simulation, Adelaide, 2013, pp. 380-386
D. M. Hershfield, "Method of estimating probable maximum precipitation," J. Am. Water Works Association, No.57, 1965, pp. 965-972
https://doi.org/10.1002/j.1551-8833.1965.tb01486.x
V. Chow, "A general formula for hydrologic frequency analysis," Trans. Am. Geophys. Union, No.32, 1951, pp. 231-237
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