DIURNAL VARIATION OF URBAN CANOPY HEAT ISLAND IN THE WET SEASON IN BENIN CITY, EDO STATE, NIGERIA
1 Department of Geography and Environmental Management, Ahmadu Bello University, Zaria, Nigeria.
2 Department of Geography, Nigerian Defence Academy, Ribadu Cantonment, Kaduna, Nigeria.
* Corresponding author: aaruyaemmanuel@yahoo.com
2 Department of Geography, Nigerian Defence Academy, Ribadu Cantonment, Kaduna, Nigeria.
* Corresponding author: aaruyaemmanuel@yahoo.com
Abstract
This study assessed the diurnal variation of Urban Canopy Heat Island (UCHI) in the wetseason in Benin City, Edo State, Nigeria. Stewart and Oke (2012) system of classification wasused to classify Benin City into ten climate field sites. DS1921G – F5 Thermochroni Button datalogger was used to collect the temperature measurements from the stations. Data entry, coding,cleaning and test for normality was made following standardized procedures. Quantitativestatistical methods was employed to analyze the information collected from the field. Result ofthe analysis showed that the highest temperature in the wet season was 27.40°C, while thelowest was 24.5°C.The highest UCHI values were 2.9°C, 2.59°C and 2.47°C while the lowestvalues of UCHI were 1.24°C, 1.38°C and 1.68°C. Maximum UCHI were recorded at 15:00hours with an UCHI value of 7.13°C and6.48°while the lowest UCHI value recorded in thisseason was at 05:00 hours with a diurnal UCHI value of -0.64°C. The study thereforerecommended the use of climate-sensitive planning and design schemes such as inclusion ofbuilding codes, adoption of planning methods of green city, and green roof approaches.
Keywords
Heat
Planning
Spatial
Temperature
Urban
References
- Abdulhamed, 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 Unpublished Ph.D. Dissertation, Department of Geography, Ahmadu Bello University, Zaria, Nigeria
- Abdulhamed, A. I, Nduka I. C., Sawa, B. A. and Usman, A. K. (2015). An Analysis of the Urban Canopy Heat Island (UCHI) of KanoMetropolis during the Warm/Wet Season. Journal of Environment and Earth Science, 5, (13).
- Adebayo, A.A. and Zemba, A.A. (2003). Analysis of Microclimatic Variations in Jimeta-Yola, Nigeria. Global Journal of Social Science. (2): 79-88.
- Atedhor G. O. and John-Abebe, R. O. (2017). Towards Warmer Onsets of the Rainy and Dry Seasons in the Forest Belt of Nigeria. Journal of Meteorology and Related Sciences, 10, 2-12. [https://doi.org/10.20987/jmrs.1.01.2017](https://www.google.com/search?q=https://doi.org/10.20987/jmrs.1.01.2017)
- Balogun A.I, Ahmed A.B and Zachariah D.A (2011). Observed urban heat island characteristics in Akure, Nigeria. African Journal of Environmental Science and Technology. 6 (1): 1-8
- Balogun, A.I, Balogun, A.A. and Adeyewa, Z.D (2012). Assessment of urban heat island and energy demand parameters in Akure, Nigeria. Journal of Meteorology and Related Sciences. (6): 15 –23
- Efe, S.I. (2006). Climate Characteristics in Abraka, Delta State, Nigeria. In: Akinbode, A. and Ugbomeh, B.A., (Eds). Abraka Region, Agbor Central Books Ltd., 6-15
- Enete I.C and Alabi, M.O (2012)Observed urban heat island characteristics in Enugu urban during the dry season. Global Journal of Human Social Science Geography and Environmental Geo Sciences.12 (10): 75-80
- Intergovernmental Panel on Climate Change (IPCC) (2007). Climate Change 2007. The Fourth Assessment Report (AR4). Synthesis report for policymakers [http://www.ipcc.ch/pdf/assessment-report/ar4/syr/ar4_syr_spm.pdf](https://www.google.com/search?q=http://www.ipcc.ch/pdf/assessment-report/ar4/syr/ar4_syr_spm.pdf). (Access 10th August, 2009).
- Montavez, J.P., Gonzalez-Rouco, J.F. and Valero, F. (2008). A Simple Model for Estimating the Maximum Intensity of Nocturnal Urban Heat Island. International Journal of Climatology (28):235-242
- National Population Commission, NPC. (2009). National Population Commission Census Report, Federal Republic of Nigeria.
- 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.
- Odekunle, T.O. (2004) Rainfall and Length of the Growing Season in Nigeria. International Journal of Climatology, 24, 467-479
- Oke, T. R. (2012). The Need to Establish Protocols in Urban Heat Island Work. Paper presented at the T. R. Oke Symposium & Eight Symposium on Urban Environment, 11–15 January, Phoenix. URL [http://ams.confex.com/ams/89annual/techprogram/paper150552.htm](https://www.google.com/search?q=http://ams.confex.com/ams/89annual/techprogram/paper150552.htm).
- Omogbai, B.E. (1985). Aspects of Urban Climate of Benin City. Unpublished M.Sc Thesis. Department of Geography, University of Ibadan, 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.
- Stewart, I.D. and Oke, T.R. (2006). Methodological Concerns Surrounding the Classification of Urban and Rural Climate Stations to Define Urban Heat Island Magnitude. Preprints, 6th International Conference on Climate Change
- Usman, S.U. (2016). Spatio-temporal Variation of Urban Canopy Heat Island in Relation to Surface Cover Composition in Kaduna Metropolis, Nigeria. Unpublished PhD Thesis, Department of Geography, Ahmadu Bello University, Zaria, Nigeria.
- Voogt, J.A (2004). Urban Heat Island in Munn, T. (Ed), Encyclopedia of Global Change, New York,Wiley, pp 660-666.
How to Cite
Iruobe, A. E., Ibahim, M. H., & Odoh, V. (2021). DIURNAL VARIATION OF URBAN CANOPY HEAT ISLAND IN THE WET SEASON IN BENIN CITY, EDO STATE, NIGERIA. Kaduna State University Environmental Sciences Journal, 2(2), 130-140. https://doi.org/10.66884/kesj.2021.fv9w8c4y
A. E. Iruobe, M. H. Ibahim, and V. Odoh, "DIURNAL VARIATION OF URBAN CANOPY HEAT ISLAND IN THE WET SEASON IN BENIN CITY, EDO STATE, NIGERIA," Kaduna State University Environmental Sciences Journal, vol. 2, no. 2, pp. 130-140, December 2021. doi: 10.66884/kesj.2021.fv9w8c4y