ATBU Bauchi_ Tree canopy shapes and densities _Simulation results

Published: 30-10-2020| Version 1 | DOI: 10.17632/xhjfdbw585.1
Contributor:
Kabiru Haruna Abdulkarim

Description

Envi-Met simulation results for eight (8) different scenarios of tree canopy shapes and densities.

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Model area geometry The study site was developed based on physical measurements and google imagery. It has a domain size of 425.00m x 375.00m, designated within 85 x 75 x 15 grids. The grid cell size was 5.00m x 5.00m x 2.00m as dx, dy, and dz respectively. The height of the total grids for the dz axis is 30m which is more than 2times of the highest building on the site. Priorities were given to the geometry of the existing buildings, vegetation on the site, ground surfaces, and the receptors for the microclimate condition measurements. The total height of the buildings within the measurement site ranges from 5m to 12m. The ground surfaces were loamy soils and asphalt roads. Trees of Leaf Area Density (LAD) 1.2 were used for the model domain. Five receptors were placed for each model domain. *30% is the vegetation cover, *CYL LT DM = Cylindrical shape, Large trunk, Dense medium canopy, *CYL LT SM = Cylindrical shape, Large trunk, Sparse medium canopy, *CYL MT DM = Cylindrical shape, Medium trunk, Dense medium canopy, *CYL MT SM = Cylindrical shape, Medium trunk, Sparse medium canopy, *Sphe. LT DM = Spherical shape, Large trunk, Dense medium canopy, *Sphe. LT SM = Spherical shape, Large trunk, Sparse medium canopy, *Sphe. MT DM = Spherical shape, Medium trunk, Dense medium canopy, *Sphe. MT SM = Spherical shape, Medium trunk, Sparse medium canopy,