Analisis Banjir Metode Hidrograf Satuan Sintetis SCS dan Nakayasu DAS Pesung, Batam
Abstract
Design discharge is discharge with a certain return period which is used as a reference or parameter in a water building construction planning. Calculation of the design discharge can be done by using the synthetic unit hydrograph method. The calculation of the planned discharge using the Nakayasu and SCS-CN synthetic unit hydrographs aims to compare the calculation of the maximum discharge in the Pesung Watershed, Batam. The design discharge analysis was carried out without calibrating with AWLR data (observed flow) due to the unavailability of AWLR data at the study site. Thus, in this study using HDRO (high direct runoff) as a comparison. The purpose of this study is to estimate the magnitude of the design flood discharge in the Pesung Watershed, Batam City. The methods used in this calculation of the flood hydrograph is using an empirical formula, namely SCS Synthetic Unit Hydrograph and Nakayasu. The results of the HDRO calculation analysis show that the largest flood discharge occurs in the Nakayasu synthetic unit hydrograph method with details of the SCS synthetic unit hydrograph method, the peak time (Tp) is obtained at 4.46 hours, with a return period flood discharge of 5 – 50 reaching 215,488 – 584,308 m3/ s. Whereas in the Nakayasu synthetic unit hydrograph method, the peak time (Tp) is obtained at 1.47 hours, with a return period flood discharge of 5 – 50 years reaching 360.526 – 986.535 m³/s.
References
Badan Pusat Statistik Kota Batam, “Hasil Sensus Penduduk 2020,” Badan Pusat Statistik Kota Batam.
A. J. Saputra and Josephine, “Implementasi Rain Garden Infiltration untuk Mencapai Pembangunan Berkelanjutan dalam Pengelolaan Air Hujan,” Jurnal Ilmiah Rekayasa Sipil, vol. 19, no. 1, pp. 11–19, 2022, [Online]. Available: http://ejournal2.pnp.ac.id/index.php/jirs/TerakreditasiSINTAPeringkat5
D. Libora and A. J. Saputra, “Analysis of Water Resources, Public Health, and Economic Development in the Sungai Panas Region of Batam City,” LEADER: Civil Engineering and Architecture Journal, vol. 1, no. 3, pp. 324–330, 2023, doi: 10.37253/leader.v1i3.8303.
L. de Jong, S. De Bruin, J. Knoop, and J. van Vliet, “Understanding land-use change conflict: a systematic review of case studies,” J Land Use Sci, vol. 16, no. 3, pp. 223–239, 2021, doi: 10.1080/1747423X.2021.1933226.
A. J. Saputra, “KAJIAN HIDROLOGI DAN HIDRAULIKA BANJIR AKIBAT SIKLON TROPIS BADAI CEMPAKA 2017 DI DAS OPAK YOGYAKARTA,” Universitas Gadjah Mada, Yogyakarta, 2019.
F. Fernando and A. J. Saputra, “Analysis of the Effect of Shear Walls on Building Structural Deviations in High-rise Buildings Monde City Tower M2 Batam City,” Journal of Civil Engineering and Planning, vol. 3, no. 2, pp. 146–160, Dec. 2022, doi: 10.37253/jcep.v3i2.7434.
S. Twisa, S. Kazumba, M. Kurian, and M. F. Buchroithner, “Evaluating and predicting the effects of land use changes on hydrology in Wami river basin, Tanzania,” Hydrology, vol. 7, no. 1, 2020, doi: 10.3390/HYDROLOGY7010017.
A. J. Saputra, J. Sujono, and R. Jayadi, “KAJIAN HIDROLOGI DAN HIDRAULIKA BANJIR AKIBAT SIKLON TROPIS BADAI CEMPAKA 2017 DI DAS OPAK YOGYAKARTA,” Universitas Gadjah Mada, Yogyakarta, 2019.
A. J. Saputra, J. Sujono, and R. Jayadi, “KAJIAN HIDROLOGI DAN ANALISA KAPASITAS TAMPANG SUNGAI OPAK YOGYAKARTA,” in Seminar Nasional Teknik Sumber Daya Air, 2019, pp. 173–185. [Online]. Available: https://www.researchgate.net/publication/348390321
M. R. Fachri, “EVALUATION OF DRAINAGE CHANNEL ON RAJA ISA STREET, BATAM KOTA DISTRICT, CITY OF BATAM, KEPULAUAN RIAU,” Universitas Islam Indonesia , Yogyakarta, 2020.
A. J. Saputra and P. Fu, “ANALISIS PENERAPAN SISTEM RAINWATER TANK DI PERUMAHAN CITRA INDAH BATAM CENTER,” Jurnal Inersia, vol. 13, no. 1, pp. 31–40, 2021, doi: 10.33369/ijts.
H. Kurniawan, N. K. Ardi, and C. Anwar, “ANALISIS FAKTOR PENYEBAB GENANGAN BANJIRPADA BADAN JALAN (STUDI KASUS : SIMPANG RAYA INDAH, JALAN JENDRAL SUDIRMAN, MUKA KUNING, SEI BEDUK BATAM),” Sigma Teknika, vol. 4, no. 1, pp. 70–80, Jun. 2021.
A. A. Sari, R. Pranoto, and V. Suryan, “Perhitungan Hidrograf Banjir dengan Metode Hidrograf Satuan Sintesis SCS (Soil Conservation Service) di Kota Palembang,” Journal of Airport Engineering Technology(JAET), vol. 1, no. 1, pp. 1–7, 2020, [Online]. Available: https://e-journal.poltekbangplg.ac.id/index.php/jaet
L. Ling, Z. Yusop, W. S. Yap, W. L. Tan, M. F. Chow, and J. L. Ling, “A calibrated, watershed-specific SCS-CN method: Application to Wangjiaqiao watershed in the three Gorges Area, China,” Water (Switzerland), vol. 12, no. 1, Jan. 2020, doi: 10.3390/w12010060.
Badan Standarisasi Nasional, “SNI 2415:2016 : Tata Cara Perhitungan Debit Banjir Rencana,” www.bsn.go.id.
N. F. Margini, D. A. D. Nusantara, and M. B. Ansori, “Analisa Hidrograf Satuan Sintetik Nakayasu DanITB Pada SubDAS Konto, Jawa Timur,” JURNAL TEKNIK HIDROTEKNIK, vol. 2, no. 1, 2017.
K. X. Soulis, “Soil Conservation Service Curve Number (SCS-CN) Method Current Applications, Remaining Challenges, and Future Perspectives,” MDPI AG, vol. 13, no. 2, 2021, doi: 10.3390/w13020192.
A. Kahffi and S. Lipu, “Analisis Hidrograf DAS Poso dengan Metode Hidrograf Satuan Sintetis Snyder dan Hidrograf Satuan Sintetis Soil Conversation Service (SCS),” REKONSTRUKSI TADULAKO Civil Engineering Journal on Research and Development, vol. 2, no. 2, pp. 121–128, 2021, [Online]. Available: https://new.jurnal.untad.ac.id/index.php/renstra
Badan Standarisasi Nasional, SNI 2415:2016 Tata Cara Perhitungan Debit Banjir Rencana. Jakarta, 2016. [Online]. Available: www.bsn.go.id
D. Kamila, L. M. Limantara, M. Bisri, and W. Soetopo, “The Limiting Physical Parameter of Nakayasu Synthetic Unit Hydrograph,” International Journal of Innovative Technology and Exploring Engineering (IJITEE), vol. 8, no. 6C2, pp. 30–33, Apr. 2019.
T. A. Nigussie, E. B. Yeğen, and A. M. Melesse, “Performance evaluation of synthetic unit hydrograph methods in mediterranean climate. A case study at guvenc micro-watershed, Turkey,” in Springer Geography, Springer, 2016, pp. 293–315. doi: 10.1007/978-3-319-18787-7_15.
Y. Eka, P. Nggarang, A. H. Pattiraja, and S. B. Henong, “ANALISA PERBANDINGAN PENENTUAN DEBIT RENCANA MENGGUNAKAN METODE NAKAYASU DAN SIMULASI APLIKASI HEC-HMS DI DAS LOWO REA,” Jurnal Teknik Sipil, vol. 1, no. 1, 2020.
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