Analisis Karakteristik Morfometri Daerah Aliran Sungai (DAS) untuk Mendukung Kajian Risiko Banjir di Kota Bontang Kalimantan Timur
DOI:
https://doi.org/10.30872/geoedusains.v6i1.4831Keywords:
Banjir, DAS, Morfometrik, HEC-HMS, BontangAbstract
Penelitian ini mengkaji karakteristik morfometri Daerah Aliran Sungai (DAS) Bontang, Kalimantan Timur, yang sangat penting untuk memahami dinamika hidrologi dan risiko banjir di kawasan tersebut. DAS Bontang dengan luas 57,03 km² dan panjang 23,25 km memiliki kemiringan basin yang sangat landai sebesar 0,18%, serta bentuk basin yang cenderung memanjang dengan rasio elongasi 0,37 dan circularity ratio 0,21. Metode analisis menggunakan perangkat lunak HEC-HMS versi 4.11 untuk memodelkan parameter morfometri dan simulasi hidrologi secara terintegrasi. Hasil temuan menunjukkan bahwa kombinasi topografi landai, bentuk basin memanjang, dan kerapatan sungai sedang (0,29 km/km²) mempengaruhi perilaku aliran permukaan dengan potensi genangan serta waktu respon hidrologi yang moderat. Karakteristik ini berimplikasi pada peningkatan risiko banjir terutama saat hujan deras tiba-tiba. Studi ini merekomendasikan optimalisasi sistem drainase serta integrasi data morfometri dan pemodelan hidrologi untuk memberikan basis ilmiah yang kuat untuk
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References
Baco, L. S., & Ode Hasani, U. (2017). Karakteristik Morfometri Menentukan Kondisi Hidrologi DAS Roraya. Ecogreen, 3(2), 105–115.
Budi, T. S., Hendri, A., & Fauzi, M. (2017). Kesesuaian Model Hidrograf Satuan Sintetik (HSS) Berdasarkan Karakteristik Daerah Aliran Sungai di Wilayah Sungai Indragiri-Akuaman. Jom FTEKNIK, 4(2).
Deka, B., Bharteey, P. K., Dutta, M., Patgiri, D. K., & Saikia, R. (2021). Morphometric analysis of Moridhal watershed in Dhemaji District of Assam, India using remote sensing and Geographic Information System techniques. Desalination and Water Treatment, 242, 235–242. https://doi.org/10.5004/dwt.2021.27841
Dotson, H. W. (2001). Watershed modeling with HEC-HMS (hydrologic engineering centers-hydrologic modeling system) using spatially distributed rainfall. Dalam Coping With Flash Floods (hlm. 219–230). Springer.
Dung, N. B., Minh, D. T., Ahmad, A., & Long, N. Q. (2020). The role of relative slope length in flood hazard mapping using ahp and gis (Case study: Lam river basin, Vietnam). Geography, Environment, Sustainability, 13(2), 115–123. https://doi.org/10.24057/2071-9388-2020-48
Frasson, R. P. de M., Pavelsky, T. M., Fonstad, M. A., Durand, M. T., Allen, G. H., Schumann, G., Lion, C., Beighley, R. E., & Yang, X. (2019). Global Relationships Between River Width, Slope, Catchment Area, Meander Wavelength, Sinuosity, and Discharge. Geophysical Research Letters, 46(6), 3252–3262. https://doi.org/10.1029/2019GL082027
Godif, G., & Manjunatha, B. R. (2022). Prioritizing sub-watersheds for soil and water conservation via morphometric analysis and the weighted sum approach: A case study of the Geba river basin in Tigray, Ethiopia. Heliyon, 8(12). https://doi.org/10.1016/j.heliyon.2022.e12261
Gumindoga, W., Rwasoka, D. T., Nhapi, I., & Dube, T. (2017). Ungauged runoff simulation in Upper Manyame Catchment, Zimbabwe: Application of the HEC-HMS model. Physics and Chemistry of the Earth, 100, 371–382. https://doi.org/10.1016/j.pce.2016.05.002
Halwatura, D., & Najim, M. M. M. (2013). Application of the HEC-HMS model for runoff simulation in a tropical catchment. Environmental Modelling and Software, 46, 155–162. https://doi.org/10.1016/j.envsoft.2013.03.006
Hidayah, E. (2019). Preliminary Assessment of the Morphometric and Hydrological. Forum Geografi, 33(1), 113–128. https://www.orfeo-toolbox.org/
Kannan, R., Venkateswaran, S., Vijay Prabhu, M., & Sankar, K. (2018). Drainage morphometric analysis of the Nagavathi watershed, Cauvery river basin in Dharmapuri district, Tamil Nadu, India using SRTM data and GIS. Data in Brief, 19, 2420–2426. https://doi.org/10.1016/j.dib.2018.07.016
Mensah-Brako, B., Ampiaw, F., Kotei, R., & Kyaku, P. (2025). Flash flood susceptibility assessment using geospatial technology-based morphometric analysis in Waya watershed, Volta River basin, Ghana. Watershed Ecology and the Environment, 7, 58–73. https://doi.org/10.1016/j.wsee.2025.02.002
Narendra, B. H., Setiawan, O., Hasan, R. A., Siregar, C. A., Pratiwi, Sari, N., Sukmana, A., Dharmawan, I. W. S., & Nandini, R. (2024). Flood susceptibility mapping based on watershed geomorphometric characteristics and land use/land cover on a small island. Global Journal of Environmental Science and Management, 10(1), 301–320. https://doi.org/10.22034/gjesm.2024.01.19
Nasjono, J. K., Amin, D., Khaerudin, D. N., & Krisnayanti, D. S. (2024). The impact of watershed characteristics on flood behaviour in the Noelmina River region. IOP Conference Series: Earth and Environmental Science, 1311(1). https://doi.org/10.1088/1755-1315/1311/1/012012
Ojha, S., Puri, L., Bist, S. P., Bastola, A. P., & Acharya, B. (2023). Watershed prioritization of Kailali district through morphometric parameters and landuse/landcover datasets using GIS. Heliyon, 9(6). https://doi.org/10.1016/j.heliyon.2023.e16489
Rahmati, O., Samadi, M., Shahabi, H., Azareh, A., Rafiei-Sardooi, E., Alilou, H., Melesse, A. M., Pradhan, B., Chapi, K., & Shirzadi, A. (2019). SWPT: An automated GIS-based tool for prioritization of sub-watersheds based on morphometric and topo-hydrological factors. Geoscience Frontiers, 10(6), 2167–2175. https://doi.org/10.1016/j.gsf.2019.03.009
Rana, V. K., & Suryanarayana, T. M. V. (2021). Estimation of flood influencing characteristics of watershed and their impact on flooding in data-scarce region. Annals of GIS, 27(4), 397–418. https://doi.org/10.1080/19475683.2021.1960603
Scharffenberg, W. (2022). HEC-HMS User ’ s Manual. US Army Corps of Engineers Hydrologic Engineering Center.
Sofia, G., & Nikolopoulos, E. I. (2020). Floods and rivers: a circular causality perspective. Scientific Reports, 10(1). https://doi.org/10.1038/s41598-020-61533-x
Sukristiyanti, S., Maria, R., & Lestiana, H. (2018). Watershed-based Morphometric Analysis: A Review. IOP Conference Series: Earth and Environmental Science, 118(1). https://doi.org/10.1088/1755-1315/118/1/012028
Xu, C., Fu, H., Yang, J., & Wang, L. (2022). Assessment of the Relationship between Land Use and Flood Risk Based on a Coupled Hydrological–Hydraulic Model: A Case Study of Zhaojue River Basin in Southwestern China. Land, 11(8). https://doi.org/10.3390/land11081182
Yawar Ali Khan, M., & ElKashouty, M. (2023). Watershed prioritization and hydro-morphometric analysis for the potential development of Tabuk Basin, Saudi Arabia using multivariate statistical analysis and coupled RS-GIS approach. Ecological Indicators, 154. https://doi.org/10.1016/j.ecolind.2023.110766
Zahri, R., Fauzi, M., Sujatmoko, B., Jurusan, M., Sipil, T., Teknik, F., & Riau, U. (2017). Analisis Karakteristik DAS Tapakis Berbasis Sistem Informasi Geografis Untuk Analisis Hidrograf Satuan Sintetik. Jom FTEKNIK, 4(1), 1–10.
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