Sedyowati, Laksni ORCID: https://orcid.org/0000-0001-9170-9864, Susanti, Eko Indah and Suhardjono, Suhardjono (2016) Analyses of Surface Runoff Through a Flexible Sloping Plot. In: WET 2016 : Water and Environment Technology Conference 2016, 27th-28th August 2016, Chuo University Tokyo, Japan.

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Abstract

Land slope is the main factor that influences the magnitude of runoff discharge. Estimation of runoff discharge in a region with diverse topography will give different results to areas with uniform topography. For practical purposes, it is required a set of runoff discharge data through a varied slope resulting from a rainfall event. The data is expected to provide quickly and accurately an estimation of runoff discharge at the area with diverse topography. This study examined how the relationship between slope, runoff travel time and runoff discharge at various rainfall intensity. Stages of research included the manufacture of a test plot with flexible slope according to the needs of research. Experiment was conducted on a test plot with an impermeable layer. The test plot was equipped with rainfall simulator to get the same rain events at each change in slope. The discharge data was collected on each particular time interval starting from the first rainfall to produce runoff hydrograph. The research results are runoff travel time and runoff hydrograph on various land slope that used as a control in a similar study on permeable pavement layer.

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