Pemodelan hidrologi - hidraulik aliran air songsang dan analisis saiz partikel sedimen Sungai Chini, Pahang
Backwater flow refers to the occurrence of abnormal flood waters causing by inflow water from major to tributary streams. At Sungai Chini, inflow from Sungai Pahang brings high suspended sediments which contributed to active sediment fine deposition. This article discusses the results on sediment...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Journal of Faculty of Social Sciences and Humanities. Universiti Kebangsaan Malaysia
2009
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| Online Access: | http://journalarticle.ukm.my/1597/ http://journalarticle.ukm.my/1597/ http://journalarticle.ukm.my/1597/1/amri09.pdf |
| Summary: | Backwater flow refers to the occurrence of abnormal flood waters causing by inflow water from major
to tributary streams. At Sungai Chini, inflow from Sungai Pahang brings high suspended sediments
which contributed to active sediment fine deposition. This article discusses the results on sediment
size determination that was carried out in Sungai Chini in two different seasons, namely normal
season (16/8/08) and rainy season (4/12/08). Three sampling stations were selected. Parameters used
in this study are based on grain size distribution (g). Different size of material classifications were
determined and calculated using Phi scale (ø) in order to calculate their median, mean (M), standard
deviation (D) and skewness (S). River flow estimation (m3/s) and some other hydraulic data were also
calculated for modeling and simulation using XP-SWMM software. Simulations carried out aimed to
evaluate the actual flow that occurred during the study period as well as to identify current problems
that arise. The results indicate that the grain sizes as showing in mean’s statistic is rough grain with
phi ø 0.00 to phi ø 1.00. Meanwhile, the standard deviation (D) indicates of poor and very poor
deposition, between phi ø 1.00 to phi ø 4.00, and skewness (S) shows grains size between moderate to
very fine, which is between phi ø +0.10 to phi ø +1. 00 |
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