IntroductionAbu Dhabi has experienced rapid urban growth in recent decades, raising concerns about changes in land surface temperature (LST) within its hyper-arid environment. This study assess the influence of urban expansion and vegetation growth on LST over time and examines the role of land-cover transitions in shaping local thermal conditions.MethodsLandsat 7 satellite imagery from 2001 to 2019 was analyzed using machine learning and GIS-based methods. Supervised classification was conducted using QGIS and Google Colab to map urban, vegetation, sand/desert, and water classes. Classification performance was evaluated using accuracy metrics, while linear regression was used to quantify the relationships between land-cover composition and mean LST.ResultsMean LST decreased from 45.3 °C in 2001 to 39.4 °C in 2019. Over the same period, sand/desert cover declined by 9%, while urban and vegetation cover increased by 93% and 68%, respectively. Regression analysis identified vegetation as the strongest predictor of lower LST, with each one-percentage-point increase in vegetation share corresponding to an estimated 6.92 °C decrease in mean LST. Urban cover showed a weaker and statistically non-significant relationship after accounting for vegetation and the simultaneous reduction in sand/desert cover.DiscussionThe findings indicate that the observed temperature reduction is strongly associated with local adaptation strategies, particularly vegetation expansion and the reduction of exposed desert surfaces. This land-cover transition provides valuable evidence to guide future decision‐making for climate resilience in hyper‐arid environments.
Assessing the effects of urbanization and vegetation on land surface temperature using machine learning and GIS-based approach in Abu Dhabi, UAE
Jamal Abdalla
