Ionospheric Empirical Mathematical Formula to Forecast the Critical Frequency of F2-layer over Athen

Hadi, Khalid A.; Azeez, Aqeel Z.; Khudher, Athra’ D; Nasir, Renda A

doi:10.15373/22778160/apr2014/86

Cited by 1 publication

(2 citation statements)

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“…Also, samples of the statistical analysis resulted for the statistical methods of Difference Residual and Absolute Residual between observed and predicted f o F2 dataare presented in Figure 4. The statistical calculation results for the observed and predicted (theoretical) f o F2 datasets of the three stations is presented in Tables (3) - (8). While the behavior of the calculated statistical analysis results for IRI and ASAPS models for the three stations for the years 2009 and 2014 have been shown in Figures (3) and ( 4).…”

Section: Statistical Calculationsmentioning

confidence: 99%

“…In 2014, Hadi et al studied the variation of the ionospheric critical frequency of the F2-layer (f o F2) over Athens city for the monthly period of the years 2011, 2012, 2013. An analytical investigation was conducted and a relationship between the monthly average f o F2 values and the hourly time factor was expressed as a suggested mathematical formula [8]. Jeon et al (2016) used the mean and standard deviation to analyze the seasonal and annual changes of f o F2 as well as the relationships of F2 layer height at two sites in South Korea.…”

Section: Introductionmentioning

confidence: 99%

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Investigating the Compatibility of IRI and ASAPS Models in Predicting the foF2 Ionospheric Parameter over the Mid Latitude Region

Ja’far

Hadi

2021

eijs

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In this research, an investigation for the compatibility of the IRI-2016 and ASAPS international models was conducted to evaluate their accuracy in predicting the ionospheric critical frequency parameter (foF2) for the years 2009 and 2014 that represent the minimum and maximum years of solar cycle 24. The calculations of the monthly average foF2 values were performed for three different selected stations distributed over the mid-latitude region. These stations are Athens - Greece (23.7o E, 37.9 o N), El Arenosillo - Spain (-6.78 o E, 37.09 o N), and Je Ju - South Korea (124.53 o E, 33.6 o N). The calculated values using the two tested models were compared with the observed foF2 datasets for each of the three selected locations. The results showed that the two tested models gave good and close results for all selected stations compared to the observed data for the studied period of time. At the minimum solar cycle 24, the ASAPS model showed in general better values than the IRI-2016 model at Athens, El Arenosillo and Je Ju stations for all tested methods. At maximum solar cycle 24, the IRI-2016 model showed higher and closer values to the observed data at Athens and El Arenosillo stations, while the ASAPS model showed better values at Je Ju station.

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Section: Statistical Calculationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%