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Multitemporal analysis of the relationship between urban green infrastructure and the urban heat island in Lince, Lima-Peru (2015-2025)

Curo Jhon Edison P.; Ovalle Miguel Angel G.; Lino A.A. · Proceedings of the LACCEI international Multi-conference for Engineering, Education and Technology (2026) · DOI: 10.18687/laccei2026.1.1.1451

Resumen

This study analyzes the relationship between green infrastructure and the mitigation of the Surface Urban Heat Island (SUHI) effect in the Lince district (Lima), through a multi-temporal analysis spanning the 2015-2025 period. The research is based on Landsat 8 and 9 satellite imagery, selected annually according to seasonality and radiometric quality criteria, excluding years without the availability of suitable images. Despite the limited availability of green spaces in the district (3.04 m2 per inhabitant) a value lower than commonly cited international recommendations, the vegetation associated with urban green infrastructure presents a consistent thermal regulating effect. The processing of bands 4, 5, and 10 allowed for the estimation of the Normalized Difference Vegetation Index (NDVI), Land Surface Temperature (LST), and SUHI for 5,601 urban units. The NDVI ranged between -0.01 (2021, 2023, and 2024) and 0.36 (2018 and 2023), indicating low overall vegetative cover with specific localized increases. The LST ranged from 15.41 °C to 45.40 °C. Furthermore, critical SUHI events of +5.48 °C were identified, whereas areas with a higher presence of vegetation cover recorded negative thermal anomalies of up to -5.00 °C, demonstrating the mitigating effect of urban green infrastructure on surface heat accumulation. Throughout the evaluated years, the NDVI-LST and NDVI-SUHI relationships showed negative and statistically significant correlations (r between -0.595 and -0.480; p < 0.001), evidencing that even small areas of urban green infrastructure are associated with lower surface heat accumulation in a densely urbanized district like Lince.

Instituciones: Universidad Peruana de Ciencias Aplicadas