Local climate zone classification of the cites of Kaduna and FCT in Nigeria

Abstract

This paper was based on level 0 method of World Urban Database and Access Portal Tool (WUDAPT) in classifying the Local Climate Zones (LCZ) of the cities of FCT and Kaduna. The requirement of the methodology was the reason why the study focused mainly on the core urban areas in which AMAC was fully captured in FCT where by Kaduna south and Kaduna north and larger part of Chikun captured for Kaduna study area. Only five built LCZ types were classified for Kaduna city covering 15.52% while the entire land cover types were covered mainly scattered trees (48.92%), followed by low plants 12.69% while the remaining 22.87% represents dense trees (85%), bush/scrub (7.40%), bare rock/paved (6.15%), bare soil/sand (6.20%) and water (0.26%). on the other hand Abuja LCZ map indicates that 26.37% of the entire coverage was classified as built LCZ type while 73.63% was classified as land cover LCZ. The core city of Abuja majorly AMAC was classified as compact low-rise (7.37%) though with lots of mixture of other LCZ noted for mix urban built up. Low plants take up most of the rural land cover types (39.67%) followed by scattered trees 27.96% and others. The overall accuracy is 84.69% and Kappa Coefficient is 0.96 for Kaduna. The overall accuracy is 87.99% and Kappa Coefficient is 0.98 for Abuja; both demonstrated a satisfying result for the LCZ classification. It can be concluded that the WUDAPT level 0 method is credible and effective for conducting LCZ classification for Nigerian cities

Keywords: World Urban Database and Access Portal Tool (WUDAPT), Local Climate Zones (LCZ), cities, urban climate, classification, map