alexa

GET THE APP

Mapping and Assessing Impervious Surface Areas and Urban Heat Island in Osogbo, Nigeria | OMICS International| Abstract
ISSN: 2157-7617

Journal of Earth Science & Climatic Change
Open Access

Like us on:

Our Group organises 3000+ Global Conferenceseries Events every year across USA, Europe & Asia with support from 1000 more scientific Societies and Publishes 700+ Open Access Journals which contains over 50000 eminent personalities, reputed scientists as editorial board members.

Open Access Journals gaining more Readers and Citations
700 Journals and 15,000,000 Readers Each Journal is getting 25,000+ Readers

This Readership is 10 times more when compared to other Subscription Journals (Source: Google Analytics)
  • Research Article   
  • J Earth Sci Clim Change,
  • DOI: 10.4172/2157-7617.1000424

Mapping and Assessing Impervious Surface Areas and Urban Heat Island in Osogbo, Nigeria

Adewale AO*, Adepoju KA and Awotoye OO
Institute of Ecology and Environmental Studies, Obafemi Awolowo University, Ile-Ife, Nigeria
*Corresponding Author : Adewale AO, Institute of Ecology and Environmental Studies, Obafemi Awolowo University, Ile-Ife, Nigeria, Tel: 2348036615883, Email: [email protected]

Received Date: Sep 26, 2017 / Accepted Date: Nov 25, 2017 / Published Date: Nov 30, 2017

Abstract

This paper assessed the percent impervious surface as indicators of surface urban heat island effects in a tropical rapidly urbanizing environment by investigating the change that occurred over 29 years period starting from 1986-2015. Landsat Thematic Mapper (TM) and Operational Land Imager (OLI) data were used to estimate the land surface temperature (LST) for two different periods in the study area. A map of percent impervious surface was also generated for the same period using linear spectral mixture analysis. The results showed that the change in impervious surface value ranged from -9% to 51% between 1984 and 2006, while, the minimum values of LST increased by 2.6°C whereas the maximum LST values exhibited a decrease by 8.5°C; the mean LST values increased by 4.6°C within the same period. The results indicate that increase in imperviousness results in higher temperature. Over the years, the gradual transition of land use from suburban to urban land in peri-urban districts around the highly urbanized hotspots resulted in an increase of 51% in the imperviousness and 29% in temperature. This result suggests that uncontrolled rapid population increase resulting in expansion of impervious surfaces can lead to significant increase in urban heat island formation in urban and peri-urban districts.

Keywords: Impervious surface area; Land surface temperature; Spectral mixture analysis; Urbanization; Urban heat island

Citation: Adewale AO, Adepoju KA, Awotoye OO (2017) Mapping and Assessing Impervious Surface Areas and Urban Heat Island in Osogbo, Nigeria. J Earth Sci Clim Change 8: 424 Doi: 10.4172/2157-7617.1000424

Copyright: © 2017 Adewale AO, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Select your language of interest to view the total content in your interested language

Post Your Comment Citation
Share This Article
Recommended Conferences
Article Usage
  • Total views: 2352
  • [From(publication date): 0-2017 - Aug 03, 2021]
  • Breakdown by view type
  • HTML page views: 2155
  • PDF downloads: 197
Top