Ometan, Oluwafunmilayo O. and Omotosho, T. V. and Adewusi, M. O. and Akinwumi, S. A. and Emetere, Moses and Boyo, A. O. (2019) Six Years Result of Rainfall Rate Measurement at Covenant University, Southwest, Nigeria. In: 3rd International Conference on Science and Sustainable Development, 2019, Online.
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Abstract
The scattering and absorption of communication signal propagated through the troposphere by rainfall is a major cause for attenuation. For a proper mitigation of this impairment, an adequate understanding of rain rate must be carried out. Hence a 6-years of one-minute rain rate and four years measurement at Ota, Southwest, Nigeria (6o 42N, 3o 14E), using a wireless Davis Vantage Pro2 Weather Station is presented. The rainfall rate data span from April 2012 to December 2015 has been analysed. One-minute rainfall rate is required for the prediction and modelling of rain attenuation at microwave frequencies for a region like the Nigeria at various percentage of time. International Telecommunication Union – Recommendation (ITU-R) divided the world into rainfall zones of which Nigeria falls into the P zone. However, the maximum rainfall rate at 0.01% of time in the P zone is 145 mm/hr of which Ota is overestimated. The measured yearly averaged maximum one-minute rainfall rate for 2012, 2013, 2014, 2015, 2016 and 2017 are 157.7 mm/h, 148.0 mm/h, 241.2 mm/h, 157.3 mm/h, 140.6 mm/h and 250.8 mm/h respectively
| Item Type: | Conference or Workshop Item (Paper) |
|---|---|
| Uncontrolled Keywords: | Electromagnetic wave, Rainfall rate, attenuation, satellite communication, earth-space path |
| Subjects: | Q Science > QC Physics |
| Divisions: | Faculty of Engineering, Science and Mathematics > School of Civil Engineering and the Environment |
| Depositing User: | Mrs Patricia Nwokealisi |
| Date Deposited: | 29 Oct 2019 10:19 |
| Last Modified: | 29 Oct 2019 10:19 |
| URI: | http://eprints.covenantuniversity.edu.ng/id/eprint/12945 |
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