LAND SURFACE TEMPERATURE IN PART OF SOUTH-WEST NIGERIA (1991 - 2015)
Journal Title: Analele Universitatii din Oradea, Seria Geografie - Year 2018, Vol 28, Issue 2
Abstract
The study examined the spatial and temporal variation of land surface temperatures over a typical medium-size traditional settlement in southwestern Nigeria. Data were the multi-date satellite Landsat imageries (1991, 2002 and 2015) covering the area, as well as values of ambient air temperatures that were measured at different landuse areas (industrial, commercial, residential and outskirts) and along the major road that traverse the study area using a portable handheld air weather station thermometer. Ambient temperature values were obtained between 0600 and 1900 hours of the Nigerian local standard time. Analysis of the Landsat imageries indicate that thermal reflectance (in terms of normalized difference build-up index, NDBI) has generally increased between 1991 and 2015 by about 92 %. The NDBI shows that temperature has increased over the built up regions by 49 - 52 % between 1991 and 2015. Average land surface temperature (LST) in the area also increased by about 2.2 oC (22.8 oC - 25 oC) in the study period, but with higher than average increase around road junctions, industrial and commercial centres. Analysis of diurnal variation showed that daytime temperature was about 0.5 - 1.4 oC higher in the afternoon than either the morning or evening. The study concluded that increased in anthropogenic activities, including urbanization and commercialization are main causes of temperature increase in the traditional area, and that remote sensing imageries and in situ measurements of temperature are complementary for monitoring of changes in urban climate.
Authors and Affiliations
Kehinde Solomon POPOOLA, Oyenike Mary ELUDOYIN, Adeouwa Peter ABULOYE, Motolani Modupe OLALEYE
Keywords
Related Articles
- EP ID EP503321
- DOI -
- Views 67
- Downloads 0
QUANTIFICATION OF C FACTOR FROM USLE MODEL USING CERTAIN SETS OF CLASSICAL AND SATELITE DATA IN NW ROMANIA
C Factor is alongside the topographic factor, one of the most influential factors in estimating soil losses by means of the USLE model. Starting from this reality, we have used three methodologies in this study in order...
SPATIAL DISTRIBUTION AND ACCESSIBILITY TO HEALTHCARE FACILITIES IN AKURE SOUTH LOCAL GOVERNMENT AREA OF ONDO STATE, NIGERIA
This study examines the distribution and accessibility to healthcare facilities in Akure South Local Government Area of Ondo State. GPS was used to pinpoint the location of each of the existing healthcare facilities in t...
DEMOGRAPHIC CHANGES IN THE URBAN SPACE OF APUSENI MOUNTAINS
The study aims to analyze demographic changes in the urban space of the Apuseni Mountains in the post-communist period (1992-2011). In order to observe the demographic changes, demographic evolution, natural dynamics and...
IMPACT OF WEATHER ON ROAD TRAFFIC ACCIDENTS IN ONDO STATE, NIGERIA: 2005 - 2012
Road traffic accidents and their related deaths have become a major health problem and concerns. Studies have examined the impact of weather on road traffic accidents and casualties. However, the effect of weather on roa...
HOUSING CONDITIONS IN KANO, NIGERIA: A QUALITATIVE ASSESSMENT OF ADEQUACY
Many studies have attempted to assess the qualitative adequacy of housing in Nigeria. However, most of these studies focus either on slums or on public housing projects. There are very few empirical studies that examine...