Machine Learning Simulation of Land Cover Impact on Surface Urban Heat Island Surrounding Park Areas

Dakota McCarty, Jaekyung Lee and Hyun Woo Kim
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Dakota McCarty: Department of Urban Planning & Policy, Incheon National University, Incheon 22012, Korea
Jaekyung Lee: Department of Urban Design & Planning, Hongik University, Seoul 04066, Korea
Hyun Woo Kim: Department of Urban Policy & Administration, Incheon National University, Incheon 22012, Korea

Sustainability, 2021, vol. 13, issue 22, 1-24

Abstract: The urban heat island effect has been studied extensively by many researchers around the world with the process of urbanization coming about as one of the major culprits of the increasing urban land surface temperatures. Over the past 20 years, the city of Dallas, Texas, has consistently been one of the fastest growing cities in the United States and has faced rapid urbanization and great amounts of urban sprawl, leading to an increase in built-up surface area. In this study, we utilize Landsat 8 satellite images, Geographic Information System (GIS) technologies, land use/land cover (LULC) data, and a state-of-the-art methodology combining machine learning algorithms (eXtreme Gradient Boosted models, or XGBoost) and a modern game theoretic-based approach (Shapley Additive exPlanation, or SHAP values) to investigate how different land use/land cover classifications impact the land surface temperature and park cooling effects in the city of Dallas. We conclude that green spaces, residential, and commercial/office spaces have the largest impacts on Land Surface Temperatures (LST) as well as the Park’s Cooling Intensity (PCI). Additionally, we have found that the extent and direction of influence of these categories depends heavily on the surrounding area. By using SHAP values we can describe these interactions in greater detail than previous studies. These results will provide an important reference for future urban and park placement planning to minimize the urban heat island effect, especially in sprawling cities.

Keywords: urban heat island; urbanization; shapley additive explanation; park characteristic; extreme gradient boost; Dallas; land use land cover (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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