Green Open Space Development Based on Urban Heat Island Phenomenon in Malang City

Abstract

The development of facilities and infrastructure in Malang is triggering green open space (GOS) into built-up land. However, the development causes an urban heat island phenomenon (UHI). Therefore, to overcome the increase in environmental temperature, it is necessary to develop green open space. This study aims to identify existing green open spaces in Malang City, identify areas with UHI in Malang City, and determine green open spaces in Malang City. The identification of existing GOS based on land cover data generated through on-screen digitizing Google Earth while identifying UHI generated from the analysis of land surface temperature. The analysis shows that the total green open space in Malang City is 4.214 hectares, consisting of private GOS covering 3.635 hectares (34%) and public GOS covering 579 hectares (5%). Meanwhile, the UHI phenomenon in Malang City already covers 59% of the area of Malang City. Therefore, based on some criteria, 30 urban villages can be developed with green open space and arranged into three priority groups to become priority one covering four villages, priority two covering 14 villages and priority three covering 12 villages.