Permodelan Berkomputer: Alternatif Pengurusan Sistem Saliran Bandar
| dc.contributor.author | Abustan, Dr. Hj Ismail | |
| dc.date.accessioned | 2017-06-06T01:20:18Z | |
| dc.date.available | 2017-06-06T01:20:18Z | |
| dc.date.issued | 2003 | |
| dc.description.abstract | The accurate estimation of model parameters of existing distributed, physically based urban stormwater models requires considerable work to establish model credibility. Research carried out on urban rainfall-runoff processes using computer models in the humid tropics region is still inadequate (Desa M., 1999). Noting this, the authors have taken the initiative to examine the capability and reliability of popular generalized computer models such as Storm Water Management Model (SWMM), Hydro Works and HEC in humid tropic condition such as Malaysia. However, in this paper, only the perfonnance of SWMM is discussed. The catchment studied is about 174 ha and consists of a mixed development with an average impervious surface value of approximately 60 to 80 percent. The catchment has 15 high resolution automatic rain gauges in an area of only 26 km2 (Desa M., 1997). Calibration of SWMM has been performed using available information such as conduits/channel lengths, slopes, land uses and catchment slope, etc. Delineation of drainage areas and separation of impervious and pervious surfaces were achieved using existing maps. Initial losses, depression storages and infiltration parameters were estimated during calibration. Desa M. et al. (1999) r:eported that the initial calibration results of SWMM were promising. A good correlation between the simulated and the observed results was found. The findings from this study showed support for Desa M. et al. 's (1999) results. What is found is that the SWMM model is capable and reliable in simulating local hydrological conditions for a fully developed urban area. The "goodness-of-fit" measures in calibration used in this study also support the ability of the model. | en_US |
| dc.identifier.uri | http://hdl.handle.net/123456789/3996 | |
| dc.subject | Civil Engineering | en_US |
| dc.title | Permodelan Berkomputer: Alternatif Pengurusan Sistem Saliran Bandar | en_US |
| dc.type | Working Paper | en_US |
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