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KAJIAN ALTERNATIF PENGENDALIAN BANJIRSUNGAI JEROHAN KABUPATEN NGAWI

Pipit Dwi Herlina,M.Eng. Ir. Joko Sujono-2011-01-01
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TL;DRAbstract

Jerohan River is one of rivers in East Java that flow across Madiun District and end at Madiun River, village of Banget. The problem is inundation occured every rainy season in areas around the Jerohan River, but causes of flooding are theoretically have never been known exactly. The research aimed to study the factor causes flooding (flooding on December 26, 2007) and flood control alternatives. Analysis of the causes of floods include the highest rainfall influence factor or high outlier, bank full capacity influence and landuse change. Simulation of flood control alternatives in Jerohan River is done by performing hydrologic and hydraulic methods approach using the application program HEC-RAS 4. Simulation performed on the current river conditions and flood control alternatives to reduce overflow. The result shows that rainfall on December 25, 2007 raising discharge of 9.2% of normal rainfall discharge. Limited bankfull capacity causes overflow at 44% of river station, land use cha

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Jerohan River is one of rivers in East Java that flow across Madiun District and end at Madiun River, village of Banget. The problem is inundation occured every rainy season in areas around the Jerohan River, but causes of flooding are theoretically have never been known exactly. The research aimed to study the factor causes flooding (flooding on December 26, 2007) and flood control alternatives. Analysis of the causes of floods include the highest rainfall influence factor or high outlier, bank full capacity influence and landuse change. Simulation of flood control alternatives in Jerohan River is done by performing hydrologic and hydraulic methods approach using the application program HEC-RAS 4. Simulation performed on the current river conditions and flood control alternatives to reduce overflow. The result shows that rainfall on December 25, 2007 raising discharge of 9.2% of normal rainfall discharge. Limited bankfull capacity causes overflow at 44% of river station, land use cha

Keywords

Hydrology (agriculture)Flood controlEnvironmental scienceLeveeFlooding (psychology)Flood mythWater resource managementWater level

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