Hydrological and Flood Analysis of the Cipager River
DOI:
https://doi.org/10.46799/ijssr.v5i8.1297Keywords:
Cipager River, flood risk, hydrological modeling, hydraulic capacity, rainfall distribution, sedimentation, return periodAbstract
This study investigates the flood vulnerability of the Cipager River Basin through integrated hydrological and hydraulic analysis. Maximum daily rainfall data from UPTD Mandirancan, UPTD Cilimus, and Cipager Weir were analyzed using four statistical models—Gumbel, Log-Normal, Normal, and Log-Pearson Type III—to estimate design rainfall for return periods of 2 to 100 years. The Log-Normal model produced the most conservative rainfall values, while the Log-Pearson Type III showed anomalous behavior at higher return periods, raising concerns regarding its reliability for modeling extreme hydrological events. Using Manning’s equation, design discharges were derived and compared against the hydraulic capacities of 12 river segments. Results indicate that many segments, particularly Megu Gede, Astana, and Jatimerta, have discharge capacities below 1 m³/s, far below the design discharges associated with longer return periods. This mismatch was further validated during the January 2025 flood, which caused severe inundation in subdistricts such as Weru, Tengahtani, and Gunung Jati. Compounding these risks are physical constraints including channel narrowing, sediment accumulation, and encroachment into riparian zones—conditions exacerbated by weak enforcement of spatial planning regulations. The study recommends structural measures such as river normalization, sediment control, and retention basins, alongside policy enforcement and real-time hydrological monitoring. By aligning statistical discharge modeling with actual river capacity, this research offers a strategic framework for flood risk reduction and supports evidence-based decision-making for climate-resilient watershed management in the Cipager River Basin.
References
ANTARA News. (2025, January 18). Lima kecamatan di Kabupaten Cirebon terdampak banjir akibat tanggul Sungai Cipager jebol. https://www.antaranews.com
Asdak, C. (2010). Hidrologi dan pengelolaan daerah aliran sungai. Gadjah Mada University Press.
Chaibandit, K., & Konyai, S. (2012). Using statistics in hydrology for analyzing the discharge of Yom River. APCBEE Procedia, 1, 356–362. https://doi.org/10.1016/j.apcbee.2012.03.059
Copernicus Emergency Management Service (GloFAS News). (2025, February 10). Floods and landslides in Java and Lesser Sunda Islands, Indonesia – January 2025. https://global-flood.emergency.copernicus.eu
Gori, A., Blessing, R., Juan, A., Brody, S., & Bedient, P. (2019). Characterizing urbanization impacts on floodplain through integrated land use, hydrologic, and hydraulic modeling. Journal of hydrology, 568, 82–95.
Hidayat, R. (2022). Analisis banjir Sungai Cikalong menggunakan HEC-HMS dan HEC-RAS (Skripsi, Universitas Swadaya Gunung Jati).
Hidayat, R., & Irawan, B. (2018). Analisis debit banjir rencana dengan metode Gumbel dan Log Pearson III. Jurnal Teknik Sipil, 24(3), 211–222.
Manning formula. (2025). In Wikipedia. Retrieved August 18, 2025, from Wikipedia entry on Manning formula.
Mundra, I. W. (2021). Study of regional drainage channel capacity at Aloon-Aloon, Ponorogo Regency (Manning method). e-Journal Teknik Universitas e-Referensi, 2(2), 104–112.
OECD. (2024). Adapting infrastructure to changing climatic conditions: The case of Indonesia (OECD Environment Policy Paper No. 48). https://www.oecd.org
Radar Cirebon. (2025, July 29). Tanggul Sungai Cipager yang jebol sampai sekarang belum diperbaiki, Kuwu Panembahan Plered resah. https://radarcirebon.disway.id
Ramadhan, R., Marzuki, M., Suryanto, W., Sholihun, S., Yusnaini, H., Muharsyah, R., & Hanif, M. (2022). Trends in rainfall and hydrometeorological disasters in new capital city of Indonesia from long-term satellite-based precipitation products. Remote Sensing Applications: Society and Environment, 28, 100827. https://doi.org/10.1016/j.rsase.2022.100827
Shah, M. A. R., et al. (2023). Quantifying the effects of nature-based solutions in reducing risks from hydrometeorological hazards: Examples from Europe. International Journal of Disaster Risk Reduction, 93, 103771. https://doi.org/10.1016/j.ijdrr.2023.103771
Soemarto. (2024). Four frequency distribution methods for analyzing planned rainfall: Gumbel, Normal, Log-Pearson Type III, and Log-Normal. Jurnal Teknik Pertanian Lampung, 13(4), 1023–1035.
Sulistiyowati, R., Putra, R., & Lestari, D. (2020). Analisis hidrologi dan hidrolika sungai untuk permodelan banjir pada Sungai Kali Surabaya (Skripsi, Universitas Brawijaya).
Tarigan, S., Mulyadi, D., & Hadinata, D. (2018). Changes in land cover affect water regulation and streamflow variability. Jurnal Teknik Sipil, 25(1), 45–55. https://jurnal.uns.ac.id/tekniksipil/article/view/25991
Tariq, A., et al. (2021). Characterization of the 2014 Indus River flood using log-Pearson Type III, Gumbel, and log-normal probability distributions. Remote Sensing, 13(11), Article 2053. https://doi.org/10.3390/rs13112053
Vangelis, H., et al. (2022). Relationship of rainfall and flood return periods through hydrodynamic simulation and frequency analysis. Water, 14(22), 3618. https://doi.org/10.3390/w14223618
Wijaya, R. C. (2024). Hydraulics engineering using HEC-RAS in drainage: Evaluating cross-section discharge capacity. Atlantis Press.
Yosua, H., Kusuma, M. S. B., & Nugroho, J. (2024). An assessment of pluvial hazard in South Jakarta based on land-use/cover change from 2016 to 2022. Frontiers in Built Environment, 9, Article 1345894. https://doi.org/10.3389/fbuil.2023.1345894
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