Mapping of Urban Heat Island in West Semarang Subdistrict, Semarang City of Indonesia

Authors: Suparta W* and Niken M

DOI: 10.23880/ijoac-16000295

Volume 8, Issue 1

Abstract

One of the top ten hottest cities in Indonesia is Semarang City which is characterized by a high level of density. This research aims to classify urban heat conditions, particularly in West Semarang Sub-district, through Urban Heat Island mapping. The mapping and analysis stages include Top of Atmosphere (ToA), Brightness Temperature (BT), Normalized Difference Vegetation Index (NDVI), Proportional Vegetation Index (PVI), Error Correction (EC), and Land Surface Temperature (LST). The results of investigations based on maps produced from ArcGIS show that areas in West Semarang District can be classified into high, moderate and low temperature categories. Tambakharjo Village is the area with the highest temperature, whereas part of this area is found with low temperature, and moderate temperatures dominate almost all villages in West Semarang sub-district. The high heat that occurs in Tambakharjo is caused by fisheries production activities.

Keywords: West Semarang Sub-District; Urban Heat Island; Mapping; Landsat 8 Data

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