Equatorial F2-layer variations: Comparison between F2 peak parameters at Ouagadougou with the IRI-2007 model

Earth, Planets and Space

Table 1. Percent normalized RMS errors for the altitude of the F₂ peak, F₂ critical frequency and propagation factor during 1987 low and 1990 high flux conditions^a.

Parameter	Season	Low flux	High flux
Parameter	Season	Percent normalized RMS
h _m F ₂	Jan	8.3	8.2
	Apr	8.1	10.2
	Jul	7.3	28.8
	Oct	6.3	9.8
f_oF₂ (URSI)	Jan	15.7	12.1
	Apr	25.8	35.8
	Jul	31.9	34.2
	Oct	14.4	28.8
f_oF₂ (CCIR)	Jan	13.9	43.7
	Apr	32.2	39.4
	Jul	38.6	40.0
	Oct	16.1	31.1
M ₍₃₀₀₀₎ F ₂	Jan	3.0	3.2
	Apr	5.3	4.5
	Jul	5.1	7.3
	Oct	4.2	3.7

^aNormalized RMS error is computed by taking the RMS of the data subtracted from the model results and then divided by the RMS of the data.