Estimasi Debit Puncak DAS Welang Di Kabupaten Pasuruan
Estimasi Debit Puncak DAS Welang Di Kabupaten Pasuruan
PEAK DISCHARGE ESTIMATION OF WELANG WATERSHED IN PASURUAN REGENCY
PEAK DISCHARGE ESTIMATION OF WELANG WATERSHED IN PASURUAN REGENCY
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Andreyan Febriyanto
University of Jember
Entin Hidayah
University of Jember
Gusfan Halik
University of Jember
Keywords: peak discharge estimation, HECHMS software, Nash, estimasi debit puncak
ABSTRACT
Peak runoff has an important role in flood control.In flood control, the data of peak runoff is needed to anticipate the flood and rain fall modeling estimation is required with the help of HEC-HMS Software. From modeling result on February 3, 2007 researcher got calibration value of simulation of peak discharge 17,9 and peak discharge observation is 16,7 with a value of effectiveness (Nash) of 0.873. Model validation test on 9,10 February and 7 March 2007 resulted in value (Nash) of 0.826, 0.742 and 0.656.
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