Increasing Peak Flow of Snyder Synthetic Hydrograph Units in the Serenan Sub-Watershed of Bengawan Solo Watershed

Authors

  • Burhan Barid INDONESIA
  • Brillyana Okta Afanda INDONESIA

DOI:

https://doi.org/10.32832/astonjadro.v11i3.7456

Keywords:

runoff coefficient, watershed, snyder hss, hs, ct and cp.

Abstract

Changes in land use are closely related to the increasing number of people who are increasing from time to time. This land use change has an impact on increasing the runoff coefficient because the rain that falls will not be retained or seep and flows directly into the river. This is what causes an increase in peak discharge in a watershed. The purpose of this study was to determine the magnitude of changes in peak discharge that occurred in the Serenan watershed in 2015 and 2021 due to changes in land use. The method used in analyzing the peak discharge is the Snyder unit hydrograph, the results of this method will be compared with the measured unit hydrograph to determine the correlation between the two. To make a synthetic unit hydrograph, non-physical parameters are needed in the form of Ct and Cp values. The Ct value used in 2015 was 2.30 and in 2021 it was 2.00 while the Cp value in 2015 was 0.90 and in 2021 it was 1.10. The results of the analysis using the Snyder method showed that the peak discharge was 139.61 m3/s in 2015 and 194.56 m3/s in 2021. The analysis shows that the peak discharge increased by 54.95 m3/s and has a very strong correlation with the hydrograph of the measured unit. 

Author Biographies

Burhan Barid, INDONESIA

Civil Engineering Universitas Muhammadiyah Yogyakarta

Brillyana Okta Afanda, INDONESIA

Civil Engineering Universitas Muhammadiyah Yogyakarta

References

Asdak, C., 2002, Hidrologi dan Pengelolaan Daerah Aliran Sungai, Gadjah Mada University Press, Yogyakarta.

Barid, B., Suripin, dan Kodoatie, R., (2020). The Ant Colony Optimization Model to Determine the Parameters of Hydrograph Unit Snyder. International Journal of Innovative Technology and Exploring Engineering (IJITEE), 9(3), 571-576.

Chow, V.T., Maidment, D.R., and Mays, L.W., 1988, Applied Hydrology, Mc Graw-Hill, Singapore.

Dharma, I. G. A., Waspodo, R. S. B., & Pandjaitan, N., 2021, Analisis Pengaruh Perubahan Penggunaan Lahan terhadap Debit Sungai (Studi Kasus: Sub DAS Cikeas). Jurnal Teknik Sipil dan Lingkungan, 6(2), 121-132.

Fauzi, R. G. N., Utomo, D. H., & Taryana, D., 2018, Pengaruh perubahan penggunaan lahan terhadap debit puncak di sub DAS Penggung Kabupaten Jember, Jurnal Pendidikan Geografi, 1, 50-61.

Fransedo, A. dan Kurniawan, A., 2019, Analisis Pengaruh Perubahan Penggunaan Lahan Terhadap Debit Limpasan pada Daerah Aliran Sungai Bondoyudo Kab. Lumajang dengan Metode Rasional, Jurnal Teknik ITS, 8(2), C59-C64.

Gustama, G., Sabri, F., & Manalu, D. F., 2018, Kesesuaian Hidrograf Satuan Sintetik Terhadap Hidrograf Satuan Terukur (Studi Kasus Sub Sub Daerah Aliran Sungai Pedindang Bagian Tengah), In FROPIL (Forum Profesional Teknik Sipil), 6(1), 29-44.

Harisuseno, D., Wahyuni, S., & Dwirani, Y. (2020). Penentuan formulasi empiris yang sesuai untuk mengestimasi kurva intensitas durasi frekuensi. Jurnal Teknik Pengairan: Journal of Water Resources Engineering, 11(1), 47-60.

Harto, S, Br. 1993, Hidrograf Satuan Sintetik Gama I, Badan Penerbit Pekerjaan Umum, Jakarta.

Kristianto, A. B., Norken, I. N., Dharma, I. G. B. S., dan Yekti, M. I., 2019, Komparasi Model Hidrograf Satuan Terukur dengan Hidrograf Satuan Sintetis (Studi Kasus DAS Tukad Pakerisan), Jurnal Spektran, 7(1), 21-31.

Mahyudin, M., Suprayogi, I., & Trimaijon, T., 2014, Model Prediksi Liku Kalibrasi Menggunakan Pendekatan Jaringan Saraf Tiruan (ZST) (Studi Kasus: Sub DAS Siak Hulu) (Doctoral dissertation, Riau University), 1-18.

Nurhamidah, N., Junaidi, A., & Kurniawan, M., 2018, Tinjauan Perubahan Tata Guna Lahan Terhadap Limpasan Permukaan. Kasus: DAS Batang Arau Padang, Jurnal Rekayasa Sipil (JRS-UNAND), 14(2), 131-138.

Ramadhan, H., Amri, K., & Fauzi, M., 2021, Analisis Debit Puncak Pada DAS Air Manna Bagian Hilir Menggunakan Pendekatan Metode Hidrograf Satuan Sintetis (Hss) Snyder dan HEC-RAS 5.0. 7.,JURNAL TEKNIK SIPIL CENDEKIA (JTSC), 2(2), 35-50.

Siswoyo, H., 2012, Pengembangan Model Hidrograf Satuan Sintetis Snyder untuk Daerah Aliran Sungai di Jawa Timur, Jurnal Teknik Pengairan: Journal of Water Resources Engineering, 2(1), 42-54.

Triatmodjo, B., 2008, Hidrologi Terapan, Beta offset, Yogyakarta.

Wardhani, P. P., 2012, Analisis Banjir Tahunan Daerah Aliran Sungai Keduang, Tugas Akhir, Universitas Sebelas Maret, Surakarta.

Yani, D. A., & Suhartanto, E. (2019). Model Debit Puncak Banjir Berdasarkan Faktor Bentuk DAS untuk Sungai-Sungai di Sulawesi Selatan. Reka Buana: Jurnal Ilmiah Teknik Sipil dan Teknik Kimia, 4(1), 8-15.

Published

2022-09-23

How to Cite

Barid, B., & Okta Afanda, B. (2022). Increasing Peak Flow of Snyder Synthetic Hydrograph Units in the Serenan Sub-Watershed of Bengawan Solo Watershed. ASTONJADRO, 11(3), 616–626. https://doi.org/10.32832/astonjadro.v11i3.7456

Issue

Section

Articles