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All Journal Jurnal Peweka Tadulako
Ramdan Pano Anwar
Department of Landscape Planning and Regional Development, Institute of Landscape Architecture, Urban Planning and Garden Art Hungarian University of Agriculture and Life Sciences, Hungary
Engineering

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A Spatio-Temporal Evaluation of Water Resilience and Urban Metabolism in Informal Settlements using Remote Sensing Ramdan Pano Anwar; Kollányi László
Jurnal Peweka Tadulako Vol. 5 No. 1 (2026): Jurnal Peweka Tadulako
Publisher : Prodi PWK Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/peweka.v5i1.115

Abstract

Informal settlements face layered challenges of environmental degradation, governance fragmentation, and infrastructure inequity. This study aims to evaluate the spatial-temporal dynamics of environmental and hydrological stress within these settlements to inform targeted upgrading strategies. Utilizing Google Earth Engine and QGIS, multi-temporal and multi-spectral satellite imagery from Landsat 8/9 and Sentinel-2 (2015–2024) was processed to map ecological stress and urban expansion in Makassar, Indonesia. The methodological approach includes the calculation and zonal statistics extraction of key indices: Normalized Difference Vegetation Index (NDVI), Normalized Difference Built-up Index (NDBI), Land Surface Temperature (LST), and Moisture Stress Index (MSI). The findings reveal a severe ecological gradient characterized by a continuous downward trend in vegetation (NDVI < 0.2) and a corresponding escalation of surface impermeability in informal zones. This urban densification directly driven thermal intensification, with LST peaking above 34°C, and extreme moisture stress exceeding critical resilience thresholds (MSI > 0.9). Ultimately, this integrated geospatial diagnostic empowers the SLAIS Framework to transition landscape architecture into an operable, evidence-based discipline capable of targeting interventions where metabolic pathology is greatest.
Co-Authors Kollányi László