Phase synchronization between tropospheric radio refractivity and rainfall amount in a tropical region

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dc.contributor.authorOgunjo, Samuel T.
dc.contributor.authorAdediji, Adekunle T.
dc.contributor.authorDada, Joseph B.
dc.date.accessioned2019-10-15T14:43:07Z
dc.date.available2019-10-15T14:43:07Z
dc.date.issued2016-11-01
dc.description.abstractThis study investigated linear and nonlinear relationship between the amount of rainfall and radio refractivity in a tropical country, Nigeria using forty seven locations scattered across the country. Correlation and Phase synchronization measures were used for the linear and nonlinear relationship respectively. Weak correlation and phase synchronization was observed between seasonal mean rainfall amount and radio refractivity while strong phase synchronization was found for the detrended data suggesting similar underlying dynamics between rainfall amount and radio refractivity. Causation between rainfall and radio refractivity in a tropical location was studied using Granger causality test. In most of the Southern locations, rainfall was found to Granger cause radio refractivity. Furthermore, it was observed that there is strong correlation between mean rainfall amount and the phase synchronization index over Nigeria. Coupling between rainfall and radio refractivity has been found to be due to water vapour in the atmosphere. Frequency planning and budgeting for microwave propagation during periods of high rainfall should take into consideration this nonlinear relationship.en_US
dc.identifier.citationOgunjo, S. T., Adediji, A. T., & Dada, J. B. (2017). Investigating chaotic features in solar radiation over a tropical station using recurrence quantification analysis. Theoretical and applied climatology, 127(1-2), 421-427.en_US
dc.identifier.urihttps://doi.org/10.1016/j.jastp.2016.09.009
dc.identifier.urihttp://repository.elizadeuniversity.edu.ng/handle/20.500.12398/538
dc.language.isoenen_US
dc.publisherSpringer Viennaen_US
dc.subjectPhase synchronizationen_US
dc.subjectRadio refractivityen_US
dc.subjectPrecipitationen_US
dc.subjectRecurrence ploten_US
dc.subjectRQAen_US
dc.subjectClimateen_US
dc.titlePhase synchronization between tropospheric radio refractivity and rainfall amount in a tropical regionen_US
dc.typeArticleen_US
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