Open AccessSpatio-Temporal Analysis of Urban Heat Hazard in Jos Metropolis
Author(s) -
Solomon Wuyep zitta,
Diekoer Charity Damak,
Hyacinth Madaki Daloeng,
Hassan Buhari Arin,
Nankap Latur Binbol
Publication year - 2021
Publication title -
bokkos journal of applied scientific research
Language(s) - English
Resource type - Journals
ISSN - 2782-7828
DOI - 10.47452/bjasrep.v1i2.24
Subject(s) - impervious surface , urban heat island , urbanization , environmental science , land cover , microclimate , physical geography , vegetation (pathology) , land use , urban climate , human settlement , geography , hydrology (agriculture) , meteorology , geology , medicine , ecology , civil engineering , archaeology , geotechnical engineering , pathology , engineering , economics , biology , economic growth
The rapid urbanization has produced a remarkable effect on the surface thermal response. The effects significantly influence urban internal microclimate on a regional scale. This has led to the transformation of the natural landscape into anthropogenic surfaces in urban settlements. In this study, the surface temperature and land cover types retrieved from Landsat ETM+ and OLI images of Jos Metropolis for 2005 and 2019 were analysed. The Erdas imagine 9.2 and ArcGIS 10.1 was used for data preparation and map composition. Thermal band data was used to compute surface temperature maps for the two years and the relationship between land use land cover and surface temperature was analyzed. Results from land use land cover maps between 2005 and 2019 revealed a notable increase with an annual average rate of 5.1 %. Also, urban land development raised surface temperature by 1.360C between 2005 and 2019. Bare land exhibited the high value of surface temperature while vegetation showed low values of surface temperature. The result also shows that there is an occurrence of physiological discomfort in the environment with a very strong heat stress leading to increase in the probability of heat stroke and cardiovascular embarrassment. Focus should be given on the effect of urban growth, growing impervious surfaces and careful greening methods are recommended.