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All Journal Jurnal Teknik Sipil Cantilever: Jurnal Penelitian dan Kajian Bidang Teknik Sipil
Taufik Ari Gunawan, Taufik Ari
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Civil Engineering, Building, Construction & Architecture Engineering Transportation

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Analisis Spasial Temporal Indeks Kekeringan dan Sebaran Hotspot dengan Pemanfaatan Data Satelit pada Kabupaten Ogan Komering Ilir dengan Metode Keetch Byram Drought Index (KBDI): Spatial Temporal Analysis of Drought Index and Distribution of Hotspots Using Satellite Data in Ogan Komering Ilir District Using the Keetch Byram Drought Index (KBDI) Method Gunawan, Taufik Ari; Imroatul Chalimah Juliana; Reini Silvia Ilmiaty; Rahmadhina Aji Pertiwi
Cantilever: Jurnal Penelitian dan Kajian Bidang Teknik Sipil Vol. 11 No. 2 (2022): Cantilever
Publisher : Department of Civil Engineering and Planning, Faculty of Engineering, Sriwijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35139/cantilever.v11i2.120

Abstract

Frequent droughts cause forest and land fires during the long dry season. Therefore, it is necessary to overcome the problem of drought. However, currently, information about drought is still lacking even though it is very much needed. This is the background for researching the analysis of the drought index. This study will analyze spatially and temporally the drought that occurred in Ogan Komering Ilir Regency. Due to the limited data from the observation station, data from the Climate Forecast System Reanalysis (CFSR) was used and calculated using the Keetch Byram Drought Index (KBDI) method, then visualized using the Geographic Information System (GIS) application to map the distribution of drought index, hotspot distribution, and land cover. Based on this analysis, it can be seen that in Ogan Komering Ilir Regency, extreme drought often occurs in September in areas dominated by shrubs and dry forests. After being corrected, the distribution of the drought index, the distribution of hotspots, and land cover showed a strong correlation.
Modeling of Flood Control Using the Siphon Method to Optimize Gravity-Driven Flow in Open Channels Elhaq, Dea Annisa; Gunawan, Taufik Ari; Juliana, Imroatul C
Jurnal Teknik Sipil Vol 25, No 3 (2025): Vol 25, No 3 (2025): JURNAL TEKNIK SIPIL EDISI AGUSTUS 2025
Publisher : Fakultas Teknik Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jts.v25i3.93961

Abstract

This study evaluates the hydraulic performance of Palembang"™s drainage system under passive and pump-assisted conditions using EPA SWMM 5.1 modeling. The passive scenario (pump inactive) revealed critical vulnerabilities, particularly at Junction 19, where water levels rose 1.8 meters, causing overtopping and backwater effects extending 285 meters upstream. This confirms the system"™s inability to handle extreme rainfall (>50 mm/hr) without mechanical intervention. In contrast, activating the 650 LPS pump system reduced flood volumes by 89% and maintained water levels 0.6 meters below channel banks, eliminating overflows. The simulations demonstrate that Palembang"™s flat topography (0.2% slope) necessitates hybrid drainage solutions combining gravity flow and targeted pumping. Key findings include: (1) Junction 19 requires prioritized upgrades due to persistent bottlenecks, (2) pump activation thresholds must be optimized to 0.85-meter water levels for timely response, and (3) system-wide flood duration can be reduced by 78% with mechanical assistance. These results provide a blueprint for climate-resilient urban drainage in low-gradient delta cities, though long-term success depends on regular maintenance, sediment control, and adaptive pump operations tied to real-time weather forecasts.
Co-Authors Elhaq, Dea Annisa Imroatul Chalimah Juliana Juliana, Imroatul C Rahmadhina Aji Pertiwi Reini Silvia Ilmiaty