  Different social backgrounds and planning policies give rise to diverse urban
morphologies. These morphologies influence urban microclimate factors and
contribute to the formation of unique local microclimates, particularly in
terms of outdoor temperature. In recent times, the heat island effect has
gained increasing significance during the summer season. Therefore, this study
aims to explore the correlation between urban microclimate simulation and urban
morphology within the context of the heat island effect. Specifically, we
investigate how the outside temperature varies across different types of
residential buildings in Yeongdeungpo-gu, Seoul, South Korea, during the summer
period. We compare temperature conditions using a multi-dimensional system of
building clusters' morphological indices and employ ENVI-met software for
simulation purposes. The results of the urban microclimate simulation are
comprehensively analyzed, revealing a significant finding: high-rise
residential buildings exhibit considerably higher outdoor temperatures compared
to low-rise residential buildings. Furthermore, the presence of open spaces
plays a crucial role in mitigating high neighborhood temperatures. By deriving
insights from these findings, we aim to provide valuable conclusions to support
city managers in making informed decisions.
