Assessing the interrelationship between LST, NDVI, NDBI and land cover change in Amuwo-Odofin, Lagos Nigeria

Abstract

Climate change is undoubtedly one of the greatest existential threats to humans. This threat is continuously being aggravated by continuous urbanization which leads to the rapid change of land cover profoundly affecting biodiversity and ecosystem function as well as local and regional climate. This study assesses the variation of land surface temperature (LST), normalized difference vegetation index (NDVI) and normalized difference built-up index (NDBI), and the relationship with land cover change in Amuwo-Odofin Local Government Area of Lagos State, Nigeria. Multi-date Landsat imageries for years 2002 and 2019 were classified using the parallelepiped technique into five land cover classes – vegetation, bare land, built-up area, water body and wetland. The spectral indices (NDVI and NDBI) were computed and the LST was determined using a single-channel algorithm. In the findings, there was a negative correlation between LST and NDVI, and between NDVI and NDBI. The distribution of the LST, NDVI and NDBI varied correspondingly in accordance with changes in land cover.