Assessment of Urban Cooling Island Effects of Jabi Lake Reservoir, Abuja on its Surrounding Microclimate Using Geospatial Techniques

1
Michael C. Ekwe
Michael C. Ekwe
2
Asma T. Ibrahim
Asma T. Ibrahim
3
Ifeoluwa A. Balogun
Ifeoluwa A. Balogun
4
Oluwatola I. Adedeji
Oluwatola I. Adedeji
5
David O. Ekwe
David O. Ekwe
6
Jemimah Nom
Jemimah Nom
1 Federal University of Technology

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The aim of this study is to assess urban cooling island effects of Jabi Lake Reservoir, Abuja on its surrounding microclimate using geospatial techniques. To achieve this, the UCI effects of Jabi Lake Reservoir on surrounding microclimate were analyzed by applying UCI indices such as UCI scale, temperature difference, and UCI intensity. The thermal bands 10 and 11 of Lands at 8 OLI/TIRS satellite imageries acquired on 29th November 2017 were utilized in retrieving LST data while high resolution (0.7 m) QuickBird imagery acquired in 2017 was used to map Jabi Lake Reservoir. Five land use categories were identified and classified within the study area which showed that bare surface covered 607.33 sq.km; water body, 1.32 sq.km; built-up, 281.47 sq.km; vegetation, 453.27 sq.km; and rock outcrop, 114.33 sq.km. It was shown that NDVI and buffer distances from Lake boundary exhibited a strong negative relationship with correlation coefficient, R = -0.94. Jabi Lake Reservoir recorded the lowest surface temperature with a mean value of 24.59°C.

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No external funding was declared for this work.

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The authors declare no conflict of interest.

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No ethics committee approval was required for this article type.

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Not applicable for this article.

Michael C. Ekwe. 2019. \u201cAssessment of Urban Cooling Island Effects of Jabi Lake Reservoir, Abuja on its Surrounding Microclimate Using Geospatial Techniques\u201d. Global Journal of Science Frontier Research - A: Physics & Space Science GJSFR-A Volume 19 (GJSFR Volume 19 Issue A2): .

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GJSFR Volume 19 Issue A2
Pg. 37- 47
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Crossref Journal DOI 10.17406/GJSFR

Print ISSN 0975-5896

e-ISSN 2249-4626

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March 27, 2019

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English

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The aim of this study is to assess urban cooling island effects of Jabi Lake Reservoir, Abuja on its surrounding microclimate using geospatial techniques. To achieve this, the UCI effects of Jabi Lake Reservoir on surrounding microclimate were analyzed by applying UCI indices such as UCI scale, temperature difference, and UCI intensity. The thermal bands 10 and 11 of Lands at 8 OLI/TIRS satellite imageries acquired on 29th November 2017 were utilized in retrieving LST data while high resolution (0.7 m) QuickBird imagery acquired in 2017 was used to map Jabi Lake Reservoir. Five land use categories were identified and classified within the study area which showed that bare surface covered 607.33 sq.km; water body, 1.32 sq.km; built-up, 281.47 sq.km; vegetation, 453.27 sq.km; and rock outcrop, 114.33 sq.km. It was shown that NDVI and buffer distances from Lake boundary exhibited a strong negative relationship with correlation coefficient, R = -0.94. Jabi Lake Reservoir recorded the lowest surface temperature with a mean value of 24.59°C.

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Assessment of Urban Cooling Island Effects of Jabi Lake Reservoir, Abuja on its Surrounding Microclimate Using Geospatial Techniques

Michael C. Ekwe
Michael C. Ekwe Federal University of Technology
Asma T. Ibrahim
Asma T. Ibrahim
Ifeoluwa A. Balogun
Ifeoluwa A. Balogun
Oluwatola I. Adedeji
Oluwatola I. Adedeji
David O. Ekwe
David O. Ekwe
Jemimah Nom
Jemimah Nom

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