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All Journal Journal of Degraded and Mining Lands Management Jurnal Geosaintek Jurnal Linears JURNAL ILMIAH GEOMATIKA Pena Teknik : Jurnal Ilmiah Ilmu-ilmu Teknik Journal of Civil Engineering and Planning (JCEP) Jurnal Peweka Tadulako JURNAL SAINS GEOGRAFI Jurnal Geosaintek
Despry Nur Annisa Ahmad, Despry Nur Annisa
Teknik Perencanaan Wilayah Dan Kota Universitas Muhammadiyah Bulukumba
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Engineering Environmental Science Mathematics Mechanical Engineering Transportation

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Pengaruh Perubahan Lahan Terhadap Suhu Iklim Mikro Urban Heat Island (UHI) di Kawasan Perkotaan Kabupaten Bulukumba Kausar, Aksar; Ahmad, Despry Nur Annisa; Radhinal, Yan; Asman, Andi Idham; Sakti, Harry Hardian
Jurnal Peweka Tadulako Vol. 4 No. 2 (2025): Jurnal PeWeKa Tadulako
Publisher : Prodi PWK Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/peweka.v4i2.81

Abstract

Climate change and global warming have caused widespread environmental degradation. These impacts are directly experienced in Indonesia, particularly in the urban area of Bulukumba Regency, specifically in Ujung Bulu District. The increase in land use changes toward built-up areas has influenced the intensity of the Urban Heat Island (UHI) phenomenon. This study aims to analyze the effect of land use change on the Urban Heat Island (UHI) phenomenon in Bulukumba Regency during the periods of 2014, 2019, and 2024. A quantitative method was employed through satellite image interpretation to identify land use changes and analyze surface temperature using Landsat 8 Band 10 imagery data. The results indicate an increase in surface temperature in the urban area of Bulukumba Regency throughout the 2014–2024 period. The simple linear regression analysis shows a significant positive correlation between land use change and surface temperature increase, with a regression coefficient (r = 0.734) and a coefficient of determination (R² = 0.81), which falls into the high category. Furthermore, areas with high surface temperatures tend to follow the spatial pattern of densely built-up land use.
Spatial Planning for Coastal Area Based on Tsunami Hazard in Bulukumba Regency Sakti, Harry Hardian; Radhinal, Yan; Ahmad, Despry Nur Annisa; Aldiansyah, Farhan
Jurnal Linears Vol. 8 No. 2 (2025): Jurnal LINEARS
Publisher : Universitas Muhammadiyah Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26618/7knf3639

Abstract

ABSTRACT:  The record of disasters in coastal areas that have occurred in Bulukumba Regency is the tsunami event due to an earthquake on December 29, 1820. The epicenter in the Flores Sea and the death toll in Bulukumba Regency at that time reached around 500 people. This event needs to be an early preparedness because tectonic disasters have the potential for a period of repetition. The purpose of this study is to analyze the tsunami hazard level and formulate coastal spatial planning policies based on the potential tsunami hazard of Bulukumba Regency. The methods used are statistical, descriptive qualitative, and spatial analysis approaches. The parameters used in determining the tsunami hazard level are earthquake hazard level, land elevation, slope slope, distance from rivers, and morphology. The results show that the coastal area is predominantly classified into low- and medium-hazard categories. Low-hazard zones occupy the largest spatial extent (notably Gantarang: 16,659.42 ha; Ujung Loe: 14,535.05 ha), while medium-hazard zones are more spatially limited but concentrated in critical locations (e.g., Bonto Bahari: 732.35 ha; Kajang: 423.06 ha; Herlang: 365.75 ha). Under a worst-case seismic scenario (7.0–7.5 Mw), the potentially affected area is estimated at 19,784 ha (25.85% of the coastal land area), with an exposure of >67,000 buildings, predominantly in Ujung Bulu (42,213 buildings). These findings have direct implications for the Regional Spatial Plan (RTRW). We recommend (1) restricting new development in identified medium-/high-exposure coastal segments, (2) designating Temporary Evacuation Sites (TES) on topographically safe locations (slope > 2%), and (3) integrating evacuation routes with the existing urban road network to ensure rapid accessibility. By providing quantitative hazard maps and concrete policy recommendations, this study fills a critical gap between tsunami hazard assessment and coastal spatial planning in Bulukumba, offering an evidence base for resilience-building and further risk-focused research.
Co-Authors Aldiansyah, Farhan Andi Idham Asman Boedi Tjahjono Farhan Aldiansyah Harry Hardian Sakti Imas Sukaesih Sitanggang Ishak, Ismah Pudji Rahayu Isma Pudji Rahayu Ishak Isra, Muhammad Kausar, Aksar Muhammad Isra Muhammad Isra Musdalifah Rahman NURUL WAHYUNI Sakti, Harry Hardian Siti Fatimah Umamit Suria Darma Tarigan Syamsiar, Syamsiar Yan Radhinal