Variation of Microwave Radio Refractivity Profiles with Temperature over Akure, Nigeria.

A Preliminary result of the measurement of radio meteorological parameters for the profiling of radio refractivity over Akure, Nigeria, is presented. One year (January-December 2018) data of temperature, pressure, and relative humidity were collected for ground surface and heights of 50, 100, 150, and 200 m respectively from the ongoing measurement of the parameters by Communication Physics Research Group of the Federal University of Technology, Akure, Nigeria. From the data collected, radio refractivity, N were computed, and correlation of N with temperature was evaluated. Results showed that the mean value of surface refractivity obtained during this period of study is 365 N-units while that at the elevated altitudes are: 362, 359, 357, and 354 N-units respectively. It was also deduced that radio refractivity decrease with an increase in height, and its values were generally higher during the rainy season (April -October) than in the dry season months (November -March). Correlation between N and temperature was high during the wet season and low during the dry season.

References

24 Cites in Article

Reference Format

E Valma,M Tamošiūnaitė,S Tamošiūnas,M Tamošiūnienė,M Žilinskas (2010). Determination of Radio Refractive Index using Meteorological Data.
E Valma,M Tamosiunaite,S Tamosiunas,M Tamosiuniene,M Zilinskas (2011). Variation of Radio Refractivity with Height above Ground.
Anthony Lowry,Chris Rocken,Sergey Sokolovskiy,Kenneth Anderson (2002). Vertical profiling of atmospheric refractivity from ground‐based GPS.
S Falodun,M Ajewole (2006). Radio refractive index in the lowest 100-m layer of the troposphere in Akure, South Western Nigeria.
S Falodun,L Kolawole (2000). Studies of super-refractivity and ducting of radiowaves in Nigeria.
A Willoughby,T Aro,I Owolabi (2002). Seasonal variations of radio refractivity gradients in Nigeria.
B Adeyemi,T Ewetumo (2006). Intra-layer (lowlevel/upper level) refractivity relations over Lagos and Kano.
B Adeyemi,I Emmanuel (2011). Radio Refractivity Gradient over Nigeria using CM-SAF Satellite Retrieved Data.
I Emmanuel,B Adeyemi,E Ogolo,A Adediji (2017). Characteristics of the anomalous refractive conditions in Nigeria.
G Hajj,E Kursinski,L Romans,W Bertiger,S Leroy (2002). A technical description of atmospheric sounding by GPS occultation.
T Umoh (2000). Rainfall characteristics and agricultural planning in Northern Nigeria. Niger.
J Adedokun (1978). West African precipitation and dominant atmospheric mechanisms.
J Bech,B Codina,Lorente,D Bebbington (2002). Monthly and daily variations of radar anomalous propagation conditions: How ''normal'' is normal propagation?.
Jidong Gao,Keith Brewster,Ming Xue (2007). Variation of radio refractivity with respect to moisture and temperature and influence on radar ray path.
M Hall,Barclay (1989). Radio wave propagation.
Şsibel Mentes,Zerefsan Kaymaz (2007). Investigation of Surface Duct Conditions over Istanbul, Turkey.
Safdar Ali,Shahzad Malik,Khurram Alimgeer,Shahid Khan,Rana Ali (2012). Statistical estimation of tropospheric radio refractivity derived from 10 years meteorological data.
R (2012). The Radio Refractive Index: Its formula and refractivity data.
M Grabner,V Kvicera (2003). Clear-air propagation modelling using parabolic equation method.
S Arya (1988). An introduction to micrometeorology.
A Adediji,M Ajewole,S Falodun,O Oladosu (2007). Radio Refractivity Measurement at 150m Altitude on TV Tower in Akure, South-West Nigeria.
A Adediji,M Ajewole (2008). Vertical profile of radio refractivity gradient in Akure, South-West, Nigeria.
A Adediji,M Ajewole (2010). Microwave anomalous propagation (AP) measurement over Akure South-Western Nigeria.
R Taylor (2008). Interpretation of the Correlation Coefficient: A Basic Review.

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No external funding was declared for this work.

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The authors declare no conflict of interest.

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How to Cite This Article

Ayodeji Ashidi. 2020. \u201cVariation of Microwave Radio Refractivity Profiles with Temperature over Akure, Nigeria.\u201d. Global Journal of Computer Science and Technology - G: Interdisciplinary GJCST-G Volume 20 (GJCST Volume 20 Issue G2): .

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GJCST Volume 20 Issue G2
Pg. 49- 58

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Crossref Journal DOI 10.17406/gjcst

Print ISSN 0975-4350

e-ISSN 0975-4172

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GJCST-G Classification: I.4.1

Submission ReceivedDecember 8, 2019
Peer Review Double Blind
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Accepted December 31, 2019
Published January 15, 2020

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Total Score: 113

Country: Nigeria

Subject: Global Journal of Computer Science and Technology - G: Interdisciplinary

Authors: Ayodeji Ashidi, Moses Ajewole, Adekunle Adediji, Joseph Ojo, Sunday Falodun, Kayode Adedayo, Theophilus Ewetumo, Ayodeji Ashidi , Samuel Adebusola , Kehinde Ogunjobi , Ayodeji Oluleye, Joseph Dada, Olalekan Ojo (PhD/Dr. count: 0)

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