학술논문

Surface thermal effects of parks in Mediterranean cities: an investigation under typical summer conditions, heatwaves and droughts
Document Type
Conference
Source
2023 Joint Urban Remote Sensing Event (JURSE) Urban Remote Sensing Event (JURSE), 2023 Joint. :1-4 May, 2023
Subject
Computing and Processing
Geoscience
Signal Processing and Analysis
Heating systems
Shape
Cooling
Urban areas
Droughts
Land surface
Vegetation mapping
urban parks
park cool island
land surface temperature
heatwaves
droughts
Mediterranean
Language
ISSN
2642-9535
Abstract
Mediterranean cities are highly vulnerable to the synergy of overheating from the local-scale urban heat island effect and evolving climate hazards. The latter relate to the increased intensity and occurrence of heatwave and drought events in the region. Vegetated parks can act as modifiers of the urban climate, providing significant relief from excessive heat loads. In this work, the daytime surface Park Cool Island (PCI) effect was investigated for 126 parks in 15 Mediterranean urban areas, using land surface temperature from the Landsat 8 Collection 2 Level-2 Surface Temperature product (2013 - 2021). A summer mean PCI intensity of 1.6 °C across parks was estimated; it was further assessed how park-induced coolness is influenced by park size, shape and type. Finally, the effect of summertime extreme events (heatwaves and droughts) on PCI was evaluated.