GLOBAL JOURNAL OF EARTH AND ENVIRONMENTAL SCIENCE
Integrity Research Journals

ISSN: 2636-6002
Model: Open Access/Peer Reviewed
DOI: 10.31248/GJEES
Start Year: 2016
Email: gjees@integrityresjournals.org


Urban fabric analysis of Benin City and its implications for the urban canopy heat island in the dry season

https://doi.org/10.31248/GJEES2024.212   |   Article Number: 1D06BBC42   |   Vol.10 (5) - October 2025

Received Date: 19 September 2025   |   Accepted Date: 29 October 2025  |   Published Date: 30 October 2025

Authors:  Emmanuel Iruobe Aruya* , Blessing Ozien Aruya and Yahaya Zayyana Ibrahim

Keywords: Benin, surface fraction, Urban Canopy Heat Island (UCHI), urban heat island, urbanisation.

The rapid growth in population and urbanisation in Benin City has altered the urban morphology, resulting in a consistent rise in temperature known as the urban heat island phenomenon. This study was designed to examine the relationship between the urban fabric and Urban Canopy Heat Island (UCHI) in Benin City in the dry season. The study classified Benin City into Local Climate Zones (LCZs). Ten LCZs were used, and the urban fabric analysis was done using Google Earth imagery. The urban fabric analysis was used to classify the selected stations into surface fractions (built-up, paved, bare land and vegetation). A thermochrone iButton data logger was placed in each of the LCZs, which recorded temperature at 30-minute intervals. Linear regression analysis was employed to evaluate the impact of surface cover composition on mean UCHI intensities within the study area. The results of the analysis showed that temperature varied across the LCZ, with the highest temperature being 29.70°C and the lowest, 27.72°C. UCHI intensity showed that FS has the highest UCHI with 3.03°C, followed by TM with 3.01°C and PS and BR with 2.98°C each. The lowest value of UCHI was recorded in WI with 1.70°C. The coefficient of determination (R2) revealed that the percentage of paved surfaces had the highest influence in the dry season, with an R2 value of 0.6917 (69%), while the percentage of vegetation had the least influence, with an R2 value of 0.0064 (1%). The study confirms an urban bias in temperature in Benin City as a result of urban morphology, which has strong implications on the bio-climatological aspect of the urban environment and the physiological comfort of the urban inhabitants. Therefore, it is strongly recommended that there should be regulations on the adoption of climate-sensitive planning and building design schemes.

Abdulhameed, A. I. (2011). An analysis of urban canopy heat island (UCHI) in Kano metropolis, Nigeria. Unpublished Ph.D. Dissertation, Department of Geography, Ahmadu Bello University, Zaria.
 
Adebayo, A. A., & Zemba, A. A. (2003). Analysis of micro climatic variations in Jimeta-Yola, Nigeria. Global Journal of Social Sciences, 2(1), 79-88.
https://doi.org/10.4314/gjss.v2i1.22769
 
Anurogo, W., Sidabutar, R. T. C., Lubis, M. Z., Panuntun, H., Nugroho, C. B., & Sufwandika, M. (2023). Estimation of land surface temperature-assessment with remote sensing data for urban heat island in batam municipality. GeoEco, 9(1), 1-11.
https://doi.org/10.20961/ge.v9i1.54510
 
Aruya, E. I. (2022). Assessment of Farmers Adaptation Strategies to Climate Change in Kaltungo Local Government Area, Gombe State, Nigeria. Gombe Journal of Geography and Environmental Studies, 3(1), 30-46.
 
Balogun, I. A., Balogun, A. A., & Adeyewa, Z. D. (2012). Observed urban heat island characteristics in Akure, Nigeria. African Journal of Environmental Science and Technology, 6(1), 1-8.
https://doi.org/10.5897/AJEST11.084
 
Chakraborty, T., & Lee, X. (2019). A simplified urban-extent algorithm to characterize surface urban heat islands on a global scale and examine vegetation control on their spatiotemporal variability. International Journal of Applied Earth Observation and Geoinformation, 74, 269-280.
https://doi.org/10.1016/j.jag.2018.09.015
 
Comrie, A. C. (2000). Mapping a wind-modified urban heat island in Tucson, Arizona (with comments on integrating research and undergraduate learning). Bulletin of the American Meteorological Society, 81(10), 2417-2432.
https://doi.org/10.1175/1520-0477(2000)081<2417:MAWMUH>2.3.CO;2
 
Coraiola, G. C., Targino, A.C. Krecl, P and Chernev, L. (2012). Spatio-temporal distribution of urban heat island in a tropical city during winter time. Retrieved 2nd January 2014 from www.congremet.prmarg.org/upload/coraiolaguilherme.pdf
 
Devereux, S. (2001). Livelihood insecurity and social protection: a re‐emerging issue in rural development. Development Policy Review, 19(4), 507-519.
https://doi.org/10.1111/1467-7679.00148
 
Efe, S. I. (2002). An aspect of Indoor microclimates characteristics in Nigeria Cities: The Warri experience. Environmental Analar, 8, 906-916.
 
Ibrahim, B., & Ash'aari, Z. H. (2023). Climate variability in relation to land use and land cover (LULC) changes in Kota Bharu, Kelantan, Malaysia. Planning Malaysia, 21(5) 1-16,
https://doi.org/10.21837/pm.v21i29.1352
 
Ibrahim, I., & Samah, A. A. (2011, June). Preliminary study of urban heat island: Measurement of ambient temperature and relative humidity in relation to landcover in Kuala Lumpur. In 2011 19th International Conference on Geoinformatics (pp. 1-5). IEEE.
https://doi.org/10.1109/GeoInformatics.2011.5981068
 
Li, R. M., & Roth, M. (2009, June). Spatial variation of the canopy-level urban heat island in Singapore. In The Seventh International Conference on Urban Climate (Vol. 29). Yokohama, Japan, 29 June - 3 July: International Association for Urban Climate.
 
Myint, S. W., Brazel, A., Okin, G., & Buyantuyev, A. (2010). Combined effects of impervious surface and vegetation cover on air temperature variations in a rapidly expanding desert city. GIScience and Remote Sensing, 47(3), 301-320.
https://doi.org/10.2747/1548-1603.47.3.301
 
Nduka, I. C. (2011). Assessment of Urban Canopy Heat Island (UCHI) Variation in Onitsha Metropolis, Anambra State, Nigeria. Unpublished M. Sc. Thesis. Department of Geography, Ahmadu Bello University, Zaria, Nigeria.
 
Okhakhu, P. A. (2010). The significance of climatic elements in planning the urban environment of Benin City, Nigeria. Unpublished PhD Thesis, Ekpoma-Nigeria: Department of Geography and Regional Planning, Ambrose Alli University.
 
Omogbai, B. E. (1985). Aspects of Urban Climate of Benin City. Unpublished M.Sc Thesis. Ibadan-Nigeria: Department of Geography, University of Ibadan.
 
Pomerantz, M., Pon, B and Akbari, H. (2000). The effects of pavements temperature on air temperatures in large cities. Paper LBNL - 43442. Berkeley, California: Earnest Orlando Lawrence National Laboratory.
 
Ramamurthy, P., & Bou‐Zeid, E. (2014). Contribution of impervious surfaces to urban evaporation. Water Resources Research, 50(4), 2889-2902.
https://doi.org/10.1002/2013WR013909
 
Srivanit, M., & Kazunori, H. (2011). The influence of urban morphology indicators on summer diurnal range of urban climate in Bangkok metropolitan area, Thailand. International Journal of Civil & Environmental Engineering, 11(5), 34-46.
 
Stewart, I. D., & Oke, T. R. (2012). Local climate zones for urban temperature studies. Bulletin of the American Meteorological Society, 93(12), 1879-1900.
https://doi.org/10.1175/BAMS-D-11-00019.1
 
Takebayashi, H., & Moriyama, M. (2012). Study on surface heat budget of various pavements for urban heat island mitigation. Advances in Materials Science and Engineering, 2012(1), 523051.
https://doi.org/10.1155/2012/523051
 
Tan, Z., & Ng, E. (2014). Influence of Greenery in Cooling the Urban Atmosphere and Surfaces in Compact Old Residential Building Blocks: A Building Morphology Approach. In Proceedings of the 30th International PLEA Conference, CEPT University, Ahmedabad, India, 16 to 18 December.
 
Usman, S. U. (2016). Spatio-temporal variation of urban canopy heat island in relation to surface cover composition in Kaduna metropolis, Nigeria. Unpublished Ph.D Dissertation, Department of Geography, Ahmadu Bello University, Zaria.
 
Zhou, D., Zhang, L., Hao, L., Sun, G., Liu, Y., & Zhu, C. (2016). Spatiotemporal trends of urban heat island effect along the urban development intensity gradient in China. Science of the Total Environment, 544, 617-626.
https://doi.org/10.1016/j.scitotenv.2015.11.168