An assessment on suspended sediment load computation in the Sg Pangsun Watershed Ulu Langat Selangor Malaysia


Citation

Geoffery JG, . and Lai FS, . (2005) An assessment on suspended sediment load computation in the Sg Pangsun Watershed Ulu Langat Selangor Malaysia. [Proceedings Paper]

Abstract

Sediment discharge rating curves are often used to estimate suspended sediment loads where the sampling program is insufficient to define the continuous record of sediment concentration. This study assessed the use of total suspended solids TSS analyzer in generating suspended sediment data from Sg. Pangsun watershed a small headwater catchment located in Ulu Langat Selangor. The suspended sediment data retrieved were regarded as actual values and were then compared against data obtained from stream water samples. The suspended load computation derived from the conventional discharge rating curves using uncorrected and bias-corrected were compared with the actual load measured. The use of uncorrected rating curves based on all stages and stage-differentiated data were overestimated by 32.7 and 26.1 respectively. Bias-corrected rating curves however gave far higher overestimation of loads with values of more than 100 compared to actual loads.


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Abstract

Sediment discharge rating curves are often used to estimate suspended sediment loads where the sampling program is insufficient to define the continuous record of sediment concentration. This study assessed the use of total suspended solids TSS analyzer in generating suspended sediment data from Sg. Pangsun watershed a small headwater catchment located in Ulu Langat Selangor. The suspended sediment data retrieved were regarded as actual values and were then compared against data obtained from stream water samples. The suspended load computation derived from the conventional discharge rating curves using uncorrected and bias-corrected were compared with the actual load measured. The use of uncorrected rating curves based on all stages and stage-differentiated data were overestimated by 32.7 and 26.1 respectively. Bias-corrected rating curves however gave far higher overestimation of loads with values of more than 100 compared to actual loads.

Additional Metadata

[error in script]
Item Type: Proceedings Paper
Additional Information: 3 ill. 2 tables 6 ref.
AGROVOC Term: RAIN
AGROVOC Term: RIVERS
AGROVOC Term: WATER LEVELS
AGROVOC Term: SEDIMENT
AGROVOC Term: SEDIMENTO
Geographical Term: MALAYSIA
Depositing User: Ms. Norfaezah Khomsan
Last Modified: 24 Apr 2025 05:28
URI: http://webagris.upm.edu.my/id/eprint/16675

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