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Flow and flood-frequency plots for the Baleh River. (a) Flow duration curves for all 51 years (1967-2017 data). The inset shows the longterm flow duration curve. Note that the curves for 1970 and 2014 represent the upper and lower limits of the envelope defined by all the flow duration curves. (b) Flood frequency curve plotted using Gumbel Distribution.

Flow and flood-frequency plots for the Baleh River. (a) Flow duration curves for all 51 years (1967-2017 data). The inset shows the longterm flow duration curve. Note that the curves for 1970 and 2014 represent the upper and lower limits of the envelope defined by all the flow duration curves. (b) Flood frequency curve plotted using Gumbel Distribution.

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Study region Sarawak, Malaysia. Study focus This paper presents a framework (‘HyFFlow’) designed to provide a systematic characterisation of river flow regimes. HyFFlow consists of four packages, together yielding information on rainfall and flow patterns. They include analyses to identify and characterise different types of high flow event, based...

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... Duration and Flood Frequency Curves The flow value corresponding to a 5-year return period event for Baleh River is approximately 4200 m 3 /s (with the exceedance probability being 20 %), with a 10-year return period event being equal to approximately 5000 m 3 /s (with the exceedance probability being 10 %) (Fig. ...
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... relations Rainfall in the Baleh varies significantly between the weather stations included in the analysis (ANOVA: df 6, 2476; F 13.773; p < 0.05). Results from post-hoc tests show that Nanga Merit and Kapit New Headworks sites differ from the other five locations, but the others do not differ from each other (Fig. A5). These two drier stations are the most westerly ones, and both sit just outside the Baleh sub-catchment but within the Rajang (Fig. 2). Rainfall-runoff plots indicate similar relations between discharge at Telok Buing and precipitation at various points in the catchment (Table 1 and Fig. A6). Thus, there is no evidence that rainfall ...

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