Flood Hazard Mapping in the Latuppa Watershed, South Sulawesi

Abstract:

Flooding in the Latuppa Watershed almost always occurs when the rainy season arrives which is influenced by various factors. Starting from quite high rainfall, soil type, land use, to topographic conditions, slope, and river flow density. This study aims to determine the distribution zone of potential flood hazards at the research location using a Geographic Information System (GIS). The method used is Multi-Criteria Evaluation (MCE) analysis which combines Flood Hazard Index (FHI) related to GIS environment. This study also uses Analytical Hierarchy Process (AHP) in determining the weight of each flood parameter. Research data in the form of secondary data was taken through Indonesia Geospatial Data Portal of the Geospatial Information Agency and Watershed Management Information System data of the Ministry of Environment and Forestry. The results of the study were in the form of a flood hazard map showing the distribution of potential flood locations. The location of high flood hazard occurs in almost all downstream parts of the Latuppa atershed which covers most of Wara Timur, Wara Selatan, Wara, Sendana and Mungkajang Districts with an area of 1847.31 ha (27.06%) with Ammasangan, Dangerakko and Lagaligo Districts dominating the most. Then, moderate vulnerability is evenly distributed in all urban villages with an area of 3199.54 ha (46.87%) and the low-level vulnerability class category has a distribution of 1779.23 ha (26.07%) which is dominated by forest land use. The results of this study are expected to be a reference in future research, and can be a literature study to take policies related to flood management in the Latuppa Watershed.

• Periodical: Construction Technologies and Architecture (Volume 16)
• Pages: 21-30
• DOI: https://doi.org/10.4028/p-Zi6nsA
• Online since: March 2025
• Authors: Muhammad Iqbal Padli*, Abdul Rachman Rasyid, Wiwik W. Osman
• Keywords: Flood Hazard, Latuppa, Mapping, South Sulawesi, Watersheed

References

[1] J. S. Cabrera and H. S. Lee, "Flood risk assessment for Davao Oriental in the Philippines using geographic information system-based multi-criteria analysis and the maximum entropy model," J Flood Risk Manag, vol. 13, no. 2, Jun. 2020.

DOI: 10.1111/jfr3.12607

[2] A. Purwanto, Rustam, Eviliyanto, and D. Andrasmoro, "Flood Risk Mapping Using GIS and Multi-Criteria Analysis at Nanga Pinoh West Kalimantan Area," Oct. 13, 2022, Gadjah Mada University.

DOI: 10.22146/IJG.69879

[3] H. Rakuasa, J. K. Helwend, and D. A. Sihasale, "Pemetaan Daerah Rawan Banjir di Kota Ambon Menggunakan Sistim Informasi Geografis," Jurnal Geografi : Media Informasi Pengembangan dan Profesi Kegeografian, vol. 19, no. 2, p.73–82, Dec. 2022.

DOI: 10.15294/jg.v19i2.34240

[4] BNPB, "Kajian Risiko Bencana Nasional Provinsi Sulawesi Selatan 2022 – 2026," 2022.

[5] F. Monger, D. V Spracklen, M. J Kirkby, and L. Schofield, "The impact of semi-natural broadleaf woodland and pasture on soil properties and flood discharge," Hydrol Process, vol. 36, no. 1, Jan. 2022.

DOI: 10.1002/hyp.14453

[6] S. R. Bajracharya, N. R. Khanal, P. Nepal, S. K. Rai, P. K. Ghimire, and N. S. Pradhan, "Community assessment of flood risks and early warning system in Ratu watershed, Koshi basin, Nepal," Sustainability (Switzerland), vol. 13, no. 6, Mar. 2021.

DOI: 10.3390/su13063577

[7] I. Madani, S. Bachri, and S. Aldiansyah, "Pemetaan Kerawanan Banjir di Daerah Aliran Sungai (DAS) BENDO Kabupaten Banyuwangi Berbasis Sistem Informasi Geografis," Jurnal Geosaintek, vol. 8, no. 2, p.2502–3659, May 2022.

DOI: 10.12962/j25023659.v8i2.11907

[8] K. Seejata, A. Yodying, T. Wongthadam, N. Mahavik, and S. Tantanee, "Assessment of flood hazard areas using Analytical Hierarchy Process over the Lower Yom Basin, Sukhothai Province," in Procedia Engineering, Elsevier Ltd, 2018, p.340–347.

DOI: 10.1016/j.proeng.2018.01.044

[9] C. Khoeun et al., "Assessing Flood Hazard Index using Analytical Hierarchy Process (AHP) and Geographical Information System (GIS) in Stung Sen River Basin," in IOP Conference Series: Earth and Environmental Science, Institute of Physics, 2022.

DOI: 10.1088/1755-1315/1091/1/012031

[10] H. Rakuasa and P. C. Latue, "Spatial Analysis of Flood Problem Area in Wae Heru Watershed, Ambon City," Jurnal Tanah dan Sumberdaya Lahan, vol. 10, no. 1, p.75–82, Jan. 2023.

DOI: 10.21776/ub.jtsl.2023.010.1.8

[11] E. Tamburaka and H. Hasddin, "Tingkat Kerawanan dan Arahan Pengendalian Pengurangan Risiko Bencana Banjir di Kecamatan Mandonga, Kota Kendari," Jurnal Pembangunan Wilayah & Kota, vol. 17, no. 2, p.137–148, Jun. 2021.

DOI: 10.14710/pwk.v17i2.32385

[12] J. Junivan, L. Linawati, and I. A. D. Giriantari, "Analisis Potensi Banjir di Kota Denpasar Menggunakan Metode Analytical Hierarchy Process," Majalah Ilmiah Teknologi Elektro, vol. 17, no. 2, p.227, Sep. 2018.

DOI: 10.24843/mite.2018.v17i02.p10

[13] A. Shadmehri Toosi, G. H. Calbimonte, H. Nouri, and S. Alaghmand, "River basin-scale flood hazard assessment using a modified multi-criteria decision analysis approach: A case study," J Hydrol (Amst), vol. 574, p.660–671, Jul. 2019.

DOI: 10.1016/j.jhydrol.2019.04.072

[14] S. Kittipongvises, A. Phetrak, P. Rattanapun, K. Brundiers, J. L. Buizer, and R. Melnick, "AHP-GIS analysis for flood hazard assessment of the communities nearby the world heritage site on Ayutthaya Island, Thailand," International Journal of Disaster Risk Reduction, vol. 48, Sep. 2020.

DOI: 10.1016/j.ijdrr.2020.101612

[15] D. Ramadhani and T. Hariyanto, "Application of the Analytical Hierarchy Process (AHP) Method in Mapping Flood Potentials Based on Geographic Information Systems (Study Case: Malang City, East Java)," vol. 17, no. 1, 2021.

[16] D. Rincón, U. T. Khan, and C. Armenakis, "Flood risk mapping using GIS and multi-criteria analysis: A greater toronto area case study," Geosciences (Switzerland), vol. 8, no. 8, Aug. 2018.

DOI: 10.3390/geosciences8080275

[17] S. N. Aziza, L. Somantri, and I. Setiawan, "Analisis Pemetaan Tingkat Rawan Banjir di Kecamatan Bontang Barat Kota Bontang Berbasis Sistem Informasi Geografis," Jurnal Pendidikan Geografi Undiksha, vol. 9, no. 2, p.109–120, 2021.

DOI: 10.33059/jsg.v4i2.3697

[18] Y. Liu, Z. Cui, Z. Huang, M. López-Vicente, and G. L. Wu, "Influence of soil moisture and plant roots on the soil infiltration capacity at different stages in arid grasslands of China," Catena (Amst), vol. 182, Nov. 2019.

DOI: 10.1016/j.catena.2019.104147

[19] K. Ullah and J. Zhang, "GIS-based flood hazard mapping using relative frequency ratio method: A case study of panjkora river basin, eastern Hindu Kush, Pakistan," PLoS One, vol. 15, no. 3, 2020.

DOI: 10.1371/journal.pone.0229153