Spatio-temporal variability of heat exposure in Peninsular Malaysia using land surface temperature

The increasing of extreme heat event across the world has become a new threat that was caused by the changing climate. It is important to understand the spatiotemporal dynamics of extreme heat and suggest feasible adaptation strategies to reduce the heat exposure. In this study, daytime land surface...

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Main Authors: Ahmad Kamal, Nurfatin Izzati, Ashaari, Zulfa Hanan, Abdullah, Ahmad Makmom
Format: Article
Language:English
Published: Disaster Advances 2019
Online Access:http://psasir.upm.edu.my/id/eprint/82225/1/Spatio-temporal%20variability%20of%20heat%20exposure%20in%20Peninsular%20Malaysia%20using%20land%20surface%20temperature.pdf
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author Ahmad Kamal, Nurfatin Izzati
Ashaari, Zulfa Hanan
Abdullah, Ahmad Makmom
author_facet Ahmad Kamal, Nurfatin Izzati
Ashaari, Zulfa Hanan
Abdullah, Ahmad Makmom
author_sort Ahmad Kamal, Nurfatin Izzati
collection UPM
description The increasing of extreme heat event across the world has become a new threat that was caused by the changing climate. It is important to understand the spatiotemporal dynamics of extreme heat and suggest feasible adaptation strategies to reduce the heat exposure. In this study, daytime land surface temperature (LST) has been retrieved from MODIS Aqua Earth observation satellite from NASA to characterize the latest spatio-temporal variability of heat exposure in Peninsular Malaysia with the reference of short-term mean calculated from year 2003 until 2012. It was found that the LST is increasing by 0.0477°C per year during the period. Trend analysis using Mann-Kendall test shows that the LST increases significantly during annually especially during southwest monsoon. Based on the z-score of mean LST for each district from year 2003 until 2018, heat exposure index (HEI) was obtained and exhibited the high HEI in mostly northern and urban areas. The HEI value will be one of the inputs for heat vulnerability assessment in the future research. Through cluster analysis, it was found that the northern part of Peninsular Malaysia is considered as the hot spot of extreme heat while cold spot is located in centre part of the region.
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spelling upm.eprints-822252020-10-17T07:02:37Z http://psasir.upm.edu.my/id/eprint/82225/ Spatio-temporal variability of heat exposure in Peninsular Malaysia using land surface temperature Ahmad Kamal, Nurfatin Izzati Ashaari, Zulfa Hanan Abdullah, Ahmad Makmom The increasing of extreme heat event across the world has become a new threat that was caused by the changing climate. It is important to understand the spatiotemporal dynamics of extreme heat and suggest feasible adaptation strategies to reduce the heat exposure. In this study, daytime land surface temperature (LST) has been retrieved from MODIS Aqua Earth observation satellite from NASA to characterize the latest spatio-temporal variability of heat exposure in Peninsular Malaysia with the reference of short-term mean calculated from year 2003 until 2012. It was found that the LST is increasing by 0.0477°C per year during the period. Trend analysis using Mann-Kendall test shows that the LST increases significantly during annually especially during southwest monsoon. Based on the z-score of mean LST for each district from year 2003 until 2018, heat exposure index (HEI) was obtained and exhibited the high HEI in mostly northern and urban areas. The HEI value will be one of the inputs for heat vulnerability assessment in the future research. Through cluster analysis, it was found that the northern part of Peninsular Malaysia is considered as the hot spot of extreme heat while cold spot is located in centre part of the region. Disaster Advances 2019 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/82225/1/Spatio-temporal%20variability%20of%20heat%20exposure%20in%20Peninsular%20Malaysia%20using%20land%20surface%20temperature.pdf Ahmad Kamal, Nurfatin Izzati and Ashaari, Zulfa Hanan and Abdullah, Ahmad Makmom (2019) Spatio-temporal variability of heat exposure in Peninsular Malaysia using land surface temperature. Disaster Advances, 12 (12). pp. 1-9. ISSN 0974-262X; ESSN: 2278-4543 https://www.researchgate.net/publication/337590736_Spatio-temporal_Variability_of_Heat_Exposure_in_Peninsular_Malaysia_using_Land_Surface_Temperature
spellingShingle Ahmad Kamal, Nurfatin Izzati
Ashaari, Zulfa Hanan
Abdullah, Ahmad Makmom
Spatio-temporal variability of heat exposure in Peninsular Malaysia using land surface temperature
title Spatio-temporal variability of heat exposure in Peninsular Malaysia using land surface temperature
title_full Spatio-temporal variability of heat exposure in Peninsular Malaysia using land surface temperature
title_fullStr Spatio-temporal variability of heat exposure in Peninsular Malaysia using land surface temperature
title_full_unstemmed Spatio-temporal variability of heat exposure in Peninsular Malaysia using land surface temperature
title_short Spatio-temporal variability of heat exposure in Peninsular Malaysia using land surface temperature
title_sort spatio temporal variability of heat exposure in peninsular malaysia using land surface temperature
url http://psasir.upm.edu.my/id/eprint/82225/1/Spatio-temporal%20variability%20of%20heat%20exposure%20in%20Peninsular%20Malaysia%20using%20land%20surface%20temperature.pdf
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