ATBU_Bauchi_Micrclimate Data & Simulation Outputs

Published: 2 November 2020| Version 2 | DOI: 10.17632/v7bd34dpsp.2
Contributors:
Kabiru Haruna Abdulkarim,
Azmiah Abd Ghafar,
Ismail Said,
Lee Yoke Lai

Description

Contents; It includes on-site data and Envi-Met simulation output. The on-site data are air temperature, relative humidity, and Dew point.

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FIELD MEASUREMENTS On-site air temperature, relative humidity, dew point, and wind speed data were collected from the study site for a period of twenty-one days, from 10th to the 31st of August 2018. This period of the year was used to obtain daily changes in air temperature for the stated number of days. HOBO UX100-011 data loggers and MS6252B Digital Anemometer were placed at the height of 1.5m above the ground to capture the climatic condition parameter. Before the commencement of the actual measurement, a 10days pretest measurement was conducted for the climatic condition parameter. The pretest measurement took place from the 1st to 10th day of August 2018. It was carried out to ensure the functionality and reliability of the data loggers. All the data loggers were set to commence capturing at 8:00hrs on the first day. Receptor points were selected for the on-site measurements (Fig. 2b) as; i. location without vegetation (TNV), ii. location with grasses only (TGR), iii. location with trees only (TTR), and iv. location with both trees and grass (TTG). The four different receptors were placed to capture all the possible different vegetation scenarios on the site. Both the actual and the pretest measurements were carried out on the same measurement points. SIMULATION Envi-met Version 4.4.2 computer simulation was employed in this study for the simulation of the modeled environment. Climate type; Hot and dry Soil; Loamy soil Latitude; 100 16’ 45” N Longitude; 090 47’ 16” E Simulation day; 26th of August 2018 Total simulation time; 26hrs Effective simulation time; 24hrs Domain size; 425.00m x 375.00m x 30.00m Resolution; 5.00m x 5.00m x 2.00m Roughness length; 0.01 Minimum Air temperature; 18 Degree centigrade at 6:00hrs Maximum Air temperature; 34 Degree centigrade at 15:00hrs Wind speed; 3.0m/s Wind direction; 90 Degree Minimum Relative humidity 45% at 15:00hrs Maximum Relative humidity 99% at 06:00hrs