Prediction of Flow Discharge of Bantimurung Watershed Using HEC-HMS Model
##plugins.themes.academic_pro.article.main##
Abstract
Bantimurung watershed is the resource of irrigation water for the surrounding communities and the last few years the change in the magnitude of the maximum discharge and the minimum discharge fluctuates considerably. This study aimed to predict the flow discharge and investigate the validity of HEC-HMS model (Hydrologic Engineering Center's Hydrologic Modeling System) in predicting the flow discharge in the Bantimurung watershed of Maros Regency. The method used in this study was a quantitative method which included data collection of the research data in the field, such as rainfall data, discharge flow rate, soil texture and land use as well as the characteristics of Bantimurung watershed. Data analysis was done using HEC-HMS software. This software performed empirical simulation using rainfall, land slope, land use, soil physical characteristics and generate predicted discharge flow rate. The HEC-HMS model was calibrated using data from Public Work (PU) which were collected in 2006. The calibrated model was then validated using 2014 data. The calibration and validation results indicated that the predicted data were in good agreement with measured data R2 and NSE value of 0,546 and 0,595 respectively from the calibration process and 0,512 and 0,490 from the validation process. These results suggest that the HEC-HMS model can predict the measured discharge flow rate adequately
##plugins.themes.academic_pro.article.details##
References
- Arsyad S. (2010). Konservasi Tanah dan Air. Bogor: IPB Press.
- Asdak C. (2010). Hidrologi dan Pengelolaan Daerah Aliran Sungai. Yogyakarta: Gadjah Mada University Press.
- Damayanti A. (2011). Permodelan Sistem Hidrologi DAS. Bogor: Institut Pertanian Bogor.
- Dasanto B.D. (2006). Petunjuk Praktikum Hydrologic Modeling System HEC-HMS. Bogor: Fakultas Matematika dan Ilmu Pengetahuan Alam Institut Pertanian Bogor.
- Moriasi D.N. et al. (2007). Model Evaluation Guidelines For Systematic Quantification Of Accuracy In Watershed Simulations. American Society of Agricultural and Biological Engineers. 50(3): 885−900.
- Risyanto. 2007. Aplikasi HEC-HMS untuk Perkiraan Hidrograf Aliran Di DAS Ciliwung Bagian Hulu.[Tesis]. Program Pascasarjana, Institut Pertanian Bogor. Bogor.
- Sidra, A.Tenri Were. 2012. Sistem Informasi Spasial Kondisi Fisik Jaringan Irigasi Bantimurung Kabupaten Maros. [Skripsi]. Program Studi Keteknikan Pertanian. Universitas Hasanuddin. Makassar
- Triatmodjo B. 2008. Hidrologi Terapan. Beta Offset: Yogyakarta.
- US Army Corps of Engineers-Hydrotogic Engineering Center (USACE). 2000. Hydrologic Modelling System HEC HMS Technical Reference Manual. Maret 2000.