Seasonal spatial-temporal variation of the urban heat island effect in Bahir Dar city using land surface temperature data

Abstract

Estimating seasonal Land Surface Temperature (LST) on a metropolis scale is important for analyzing the seasonal Urban Heat Island (UHI) effect, because of different factors. This study aimed to assess the spatial-temporal variation of surface Urban Heat Island (UHI) in Bahir Dar City using Land Surface Temperature (LST) derived from Land sat
imagery. Results revealed that the average winter LST increased from 35.76°C in 1989 to 37.89°C in 2003 and 39.090C in 2019, indicating a significant change in UHI. The temperature rise was attributed to both seasonal variation and the heat generated by transportation and industrial activities. The findings emphasize the importance of preserving green spaces in the city to reduce UHI. This research could be further improved by incorporating multiple satellite inputs in future analyses.