Hydrology and Hydraulic Analysis of Nasiri Flash Flood Disaster Event on the 1st August 2012


Imam Syarif Hidayatulloh(1*), Adam Pamudji Rahardjo(2), Bambang Agus Kironoto(3)

(1) Directorate General of Water Resource, Ministry of Public Works and Housing, Jakarta
(2) Department of Civil and Environmental Engineering, Gadjah Mada University, Yogyakarta
(3) Department of Civil and Environmental Engineering, Gadjah Mada University, Yogyakarta
(*) Corresponding Author


Nasiri lays in the Luhu village, Huamual district, West Seram Regency, Maluku province. Nasiri experienced in flash flood on August 1st, 2012 which had never happened before. There was no rainfall station and water level recorder at that time. It is rather difficult to find out the cause and yet Nasiri River was only 8 meters wide. The research started with identifying base flow, soil characteristics, learning flood video record, routing the river reach, finding the nearest rainfall station, and also interviewing some peoples there. Field data area was complemented with satellite radars. AutoCAD 2007, IFAS, Geostudio 2004, ArcGIS 10.2, HEC-HMS 4.2.1, and HEC-RAS 5.0.3 were used to perform simulations of the natural river with and without precipitation calibration, and also with and without landslide dam in the river. HEC-RAS was subject to perform 2 (two) dimensional flood routing. The result was fairly satisfying. Nasiri watershed was experiencing in flash flood caused by 2 (two) landslide dams which collapsed in 2 (two) different times. The first landslide dam was 7.55 meters high which collapsed at 09:52 (UTC+9) with 83.58 m3/s of peak discharge. The second landslide dam was 8.91 meters high which collapsed at 14:24 (UTC+9) with 54.16 m3/s of peak discharge


Nasiri, flood, landslide dam,and two-dimensional routing

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BNPB, 2017. [Online] Available at: http://dibi.bnpb.go.id

Brunner, G. W., 2016. HEC-RAS River Analysis System Hydraulic Reference Manual, Davis: US Army Corps of Engineers Hydrologic Engineering Center.

BNPB, 2017. [Online].

Brunner, G. W., 2016. HEC-RAS River Analysis System Hydraulic Reference Manual, Davis: US Army Corps of Engineers Hydrologic Engineering Center.

Froehlich, D. C., 1995. Embankment Dam Breach Parameters Revisited. s.l., ASCE: Water Resources Engineering Proceedings.

Froehlich, D. C., 2008. Embankment Dam Breach Parameters and Their Uncertainties. J. Hydraul. Eng, pp. 1708-1721.

Hidayatulloh, I. S., 2017. Flood Modelling in Nasiri, Huamual District, West Seram Regency, Yogyakarta: Master Thesis, Faculty of Engineering, Universitas Gadjah Mada

Julien, P. Y., 2002. River Mechanics. s.l.:Cambridge University Press.

Mamenun, Pawitan, H. & Sophaheluwakan, A., 2014. Validasi dan Koreksi Data Satelit TRMM Pada Tiga Pola Hujan di Indonesia. Puslitbang BMKG: Jurnal Meteorologi dan Geofisika, 15(1).

McDonald, T. C. & Langridge-Monopolis, J., 1984. Breaching Characteristics of Dam Failures. J. Hydraul. Eng, Issue 110, pp. 567-586.

Nash, J. & Sutcliffe, J., 1970. River flow forecasting through conceptual models. Part 1: Discussion of Principles. Journal of Hydrology, Issue 10, pp. 282-290.

Nearing, M., Liu, B., Risse, L. & Zhang, X., 1996. Curve numbers and Green-Ampt effective hydraulic conductivities. Water Resources Bulletin, February.32(1).

Parry, R., 2004. Mohr Circles, Stress Paths and Geotechnics. London: Spon Press.

Strickler, 1923. Contributions to the Question of a Velocity Formula and Roughness Data for Streams, Channels and Closed Pipelines (translated by Thomas Roesgen and William R. Brownlie). Pasadena: California Institute of Technology.

Takahashi, T., 2007. Debris Flow: Mechanics, Prediction, and Counter measures. Leiden: CRC Press/Balkema.

Xu, Y. & Zhang, L., 2009. Breaching Parameters for Earth and Rockfill Dams. J. Geotech Geoenviron. Eng, Issue 135, pp. 1957-1970.

DOI: https://doi.org/10.22146/jcef.28301

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