Urban cooling island vs urban heat island, who is the winner? Study of the green spaces effect in coolingdown of urban heat in Kapanewon Depok, Sleman, Yogyakarta, Indonesia

Abstract

Urban heat zone are the major problem affecting human health through the microclimatological effect. Green Spaces are like a natural air conditioners that can cool dense urban environments from hot air. The cooling effect of urban heat from the presence of Green Space is called the Urban Cooling Effect (UCE) while the cool air produced is called Urban Cooling Island (UCI). This research aims to analyze the extent to which UCI is able to neutralize UHI by urban cooling. This study of this research was conducted in Kapanewon Depok around the North Ringroad zone. In the research, the Remote Sensing method was used utilizing Landsat-8 and processed with ArcGIS to determine the patterns and dynamics of UCI and UHI and was equipped with field data measurement and interviews data using questionnaires. The results obtained were that the coldest and largest UCI Spot was at Babarsari Camping Ground, 27,777°C in 159,218 m2, with green space types consisting of shrubs, grass, plants, mixed trees and flowing river. Questionnaire results show that the majority of residents still feel hot. It was concluded that although Green Space is useful in cooling cities, but UCI VS UHI is still dominated by UHI’s influence.

Keywords

• urban cooling island (uci)
• urban heat island (uhi)
• green space
• remote sensing
• kapanewon depok