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 49
- Downloads 0
THE SPATIO-TEMPORAL ANALYSIS OF URBAN EXPANSION OF BISKRA CITY (SOUTH EASTERN ALGERIA) BY THE USE OF LANDSAT SATELLITE IMAGES
Understanding urbanization and better management of the city implies a historical perspective of its dynamics. Urban extension which today is a major challenge, is materialized by a rapid urbanization of territories in t...
CREATIVITY AND INNOVATION IN URBAN CENTRAL AND EASTERN EUROPE. FOCUS ON KICKSTARTER INITIATIVES
The concepts of innovation and creativity, as well as the territorial construct of city, have been, especially in the last few decades, the focus of an unprecendented and concerted scientific effort from all over the wor...
THE BALNEOCLIMATIC RESORT STÂNA DE VALE - PAST, PRESENT, PERSPECTIVES
Stâna de Vale balneoclimatic resort, located in the Apuseni Mountains, is very little valorised. The special natural setting, with the picturesque landscapes, the tourist trails of various difficulty degrees, the oligomi...
RESEARCH ON THE PROFESSIONAL TRAJECTORY OF THE HIGHSCHOOL AND UNIVERSITY STUDENTS FROM THE FIELDS OF GEOGRAPHY AND PHYSICAL EDUCATION
The present study is meant to monitor the professional trajectory of highschool and university students who benefited from professional counselling and guidance in order to identify the occupational niches and to improve...
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...