APPLIED JOURNAL OF PHYSICAL SCIENCE
Integrity Research Journals
ISSN: 2756-6684
Model: Open Access/Peer Reviewed
DOI: 10.31248/AJPS
Start Year: 2018
Email: ajps@integrityresjournals.org
Dependence of raindrop size and shape parameters on rain attenuation prediction over a tropical location
https://doi.org/10.31248/AJPS2022.069 | Article Number: 87F851FE1 | Vol.4 (2) - June 2022
Received Date: 01 March 2022 | Accepted Date: 04 April 2022 | Published Date: 30 June 2022
Authors: Temitope Y Kolade-Oje* , M O Ajewole , J S Ojo and A T Adediji
Keywords: Extinction cross section, Mie Theory, non-spherical raindrops, specific rain attenuation, T-matrix.
Rain attenuation is a phenomenon that weakens signal propagation, particularly in high frequency bands and in areas with significant rainfall rates, one of which is the tropical area. Falling raindrops undergo changes in shapes as they grow in sizes. The goal of this research is to use a theoretical method to examine the impact of drop shapes and sizes on rain attenuation prediction. The extinction cross section of spherical and non-spherical raindrops was calculated using the Mie theory and T-matrix respectively. The specific rain attenuation for spherical and non-spherical raindrops was computed at various frequencies in the microwave band and compared with the ITU-R838 model. It was observed that the non-spherical drops model has higher values for rain attenuation, and thus is best suitable for predicting rain attenuation
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