Evaluation of temperature and urban heat island variability in days of the week and weekends

Nwaerema, P.; Jiya, S.N.

doi:10.22034/IJHCUM.2021.01.04

Document Type : ORIGINAL RESEARCH ARTICLE

Authors

Department of Geography, Ibrahim Badamasi Babangida University, Lapai, Nigeria

https://doi.org/10.22034/IJHCUM.2021.01.04

Abstract

BACKGROUND AND OBJECTIVES: This study evaluated temperature and urban heat island variability in days of the week and weekends of Port Harcourt city, due to the continuous heat stress and resultant health disaster common in tropical countries such as Nigeria.
METHODS: The data were generated from field observation and Satellite Remote Sensing using Google Earth Engine of Landsat 5, 7, and 8 thermal infrared sensors. Temperature data from the field were captured with LCD Digital Multi-Thermometer Loggers located at different land-use types of 35 sample points in wet and dry seasons. Analysis of Variance was used to establish the temperature difference between days of the week and weekend.
FINDINGS: The rural site during days of the week had temperature of 29.3⁰C and the weekend had 29.5⁰C indicating a concentration of human activities at the rural fringes during the weekend. The temperature of Saturday and Sunday varied between 33.2⁰C and 27.6⁰C (5.6⁰C) with an urban heat island difference of 1.9⁰C. Saturday was the coolest day having 3.7⁰C. During days of the week, Monday had the highest UHI of 7⁰C with the least UHI of 4.2⁰C recorded on Friday showing the coolest day. The temperature difference between days of the week and weekend was 0.2⁰C and UHI variation of 0.4⁰C indicating that days of the week were warmer. The result showed that temperature in days of the week and the weekend differed significantly.
CONCLUSION: It was established that days of the week contributed 52% of the temperature condition of Port Harcourt city and weekend donated 48% showing that 3,095,342 occupants of the city experienced lesser thermal stress during the weekend. Thus, the study concluded that the temperature of urban areas decreased from the city center to the rural fringes. The land surface temperature indicated that the north-eastern part of the city was the warmest. The study recommends proactive city planning and management framework with effective urban greening implementation for a healthy city living.

Keywords

Main Subjects

Urban ecology and related environmental concerns

COPYRIGHTS
©2021 The author(s). This is an open access article distributed under the terms of the Creative Commons Attribution (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, as long as the original authors and source are cited. No permission is required from the authors or the publishers.

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International Journal of Human Capital in Urban Management

Evaluation of temperature and urban heat island variability in days of the week and weekends

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Volume 6, Issue 1 - Serial Number 21
January 2021
Pages 45-56

Evaluation of temperature and urban heat island variability in days of the week and weekends

References

References

Send comment about this article

Volume 6, Issue 1 - Serial Number 21January 2021Pages 45-56

Volume 6, Issue 1 - Serial Number 21
January 2021
Pages 45-56