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Flood Mitigation Strategy Based on Hydrological and Hydraulic Modelling in the Urban Area Molo, Hasanuddin; Sudiyanto, I Wayan; Amaliah, Rizki; Fathoni, Ahmad; Azis, Sri Misykat
Journal La Lifesci Vol. 6 No. 1 (2025): Journal La Lifesci
Publisher : Newinera Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37899/journallalifesci.v6i1.2274

Abstract

The urgency of this research lies in the need for a scientific-based solution in understanding the pattern of runoff and flood inundation to support effective mitigation planning. This study aims to analyze the characteristics of the Tallo River runoff before and after infrastructure development; identify the main factors causing flood inundation in the affected area and develop flood mitigation strategies based on hydrological and hydraulic modeling. The methods used include data collection using 15 years of rainfall data (2010–2024), topographic maps (DEM), and land use information; hydrological analysis by calculating the design flood discharge using the Rational and Nakayasu methods; hydraulic modeling with HEC-RAS 2D flood inundation simulation to understand the pattern of inundation distribution due to increasing runoff discharge; evaluation of the impact of development by comparing the runoff discharge before and after development and identifying its contribution to flood risk and mitigation strategies by compiling technical recommendations such as raising the embankment, improving drainage, and increasing the elevation of the affected area. The results of the study indicate that flooding in the Tallo River is mainly caused by the river's inability to accommodate the runoff discharge and the backwater effect of the urban drainage system. The increase in discharge due to the construction of a shopping center was recorded as very small (0.84 m³/second) and was not significant to the occurrence of flooding. The proposed mitigation strategies include building a 2.5-meter high embankment, increasing drainage capacity, and regulating the elevation of the affected area.
Evaluating Urban Flood Risk and Mitigation Strategies Using Hydrological and Hydraulic Modelling: A Case Study Sudiyanto, I Wayan; Molo, Hasanuddin; Azis, Sri Misykat; Fathoni, Ahmad; Wahyudi, Wahyudi
Journal La Lifesci Vol. 6 No. 2 (2025): Journal La Lifesci
Publisher : Newinera Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37899/journallalifesci.v6i2.2275

Abstract

This study aims to analyze the characteristics of the Tallo River runoff before and after infrastructure development; identify the main factors causing flood inundation in the affected area and develop flood mitigation strategies based on hydrological and hydraulic modeling. The methods used include data collection using 15 years of rainfall data (2010–2024), topographic maps (DEM), and land use information; hydrological analysis by calculating the design flood discharge using the Rational and Nakayasu methods; hydraulic modeling with HEC-RAS 2D flood inundation simulation to understand the pattern of inundation distribution due to increasing runoff discharge; evaluation of the impact of development by comparing the runoff discharge before and after development and identifying its contribution to flood risk and mitigation strategies by compiling technical recommendations such as raising the embankment, improving drainage, and increasing the elevation of the affected area. The results of the study indicate that flooding in the Tallo River is mainly caused by the river's inability to accommodate the runoff discharge and the backwater effect of the urban drainage system. The increase in discharge due to the construction of a shopping center was recorded as very small (0.84 m³/second) and was not significant to the occurrence of flooding. The proposed mitigation strategies include building a 2.5-meter high embankment, increasing drainage capacity, and regulating the elevation of the affected area. This study is expected to be a reference in flood risk management based on hydrology and hydraulics in urban areas.
Peran Mikroorganisme Simbion dalam Meningkatkan Toleransi Terumbu Karang terhadap Kenaikan Suhu (Studi Literatur) Pakanan, Janny Jovita; Azis, Sri Misykat
Jurnal Multidisiplin West Science Vol 4 No 02 (2025): Jurnal Multidisiplin West Science
Publisher : Westscience Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58812/jmws.v4i02.2056

Abstract

Pemanasan laut akibat perubahan iklim telah menjadi ancaman serius bagi kelangsungan terumbu karang di seluruh dunia. Salah satu dampak utama dari pemanasan laut adalah pemutihan karang yang terjadi akibat gangguan dalam hubungan mutualisme antara karang dan Symbiodinium. Studi literatur menunjukkan bahwa peningkatan suhu laut tidak hanya menyebabkan pemutihan tetapi juga mempercepat pertumbuhan alga oportunistik serta meningkatkan risiko penyakit karang, yang pada akhirnya mempercepat degradasi ekosistem terumbu karang. Namun, penelitian terbaru mengungkapkan bahwa mikroorganisme simbion, termasuk Symbiodinium, bakteri, dan archaea, berperan penting dalam meningkatkan ketahanan karang terhadap stres termal. Beberapa strategi konservasi berbasis mikrobioma, seperti inokulasi mikroba tahan panas dan rekayasa komunitas mikrobioma, telah dikembangkan untuk meningkatkan ketahanan karang terhadap perubahan iklim. Selain itu, strategi mitigasi berbasis ekosistem dan pengurangan emisi gas rumah kaca juga menjadi langkah penting dalam menjaga kelestarian terumbu karang di masa depan.