Urban Heat Island Mitigation for CBD Areas With City Form and Ciy Function Approaches

¹ Graduate Program of Geography Education, Universitas Negeri Makassar, 90224, Makassar, Indonesia
² Department of Geography, Faculty of Mathematics and Natural Science, Universitas Negeri Makassar, 90224, Makassar, Indonesia
³ Social Science Education Study Program, Faculty of Social Science, Universitas Negeri Makassar, 90224, Makassar, Indonesia

^* Corresponding author: rosmini.maru@unm.ac.id

Abstract

Urban Heat Island is part of an increase in air temperature, but UHI can also be said to be part of the relative heat of the surface or material above it. UHI has an impact on human health and comfort, air pollution, energy balance, and urban planning. However, over time, UHI can be predicted as a UHI mitigation effort in urban areas by using Landsat 8 imagery. The type of this study is qualitative descriptive research with multiple linear regression analysis. Based on the results of Landsat 8 image processing, the temperature distribution in the CBD area ranges from 22.6 – 33.6 ^oC. While the results of multiple linear regression analysis obtained four variables that have a strong influence on the increase in UHI on the surface in the CBD area, namely Transportation Emissions (X5) with mitigation efforts in the form of encouraging bike and ride activities, encouraging car-free days activities, and building fast public mass transportation. The Residential Land Area (X6) with mitigation efforts is in the forms of implementing the Green and Clean concept, Urban Farming based on organic plants, and High and Rise Building at IMB. The Office Area (X2) with mitigation efforts is a form of implementing the concept of Urban Farming based on organic plants, High and Rise buildings, and the development of vertical land use. The length of the road that uses asphalt (X10) with mitigation efforts is the form of adding pedestrian lanes.