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Table 2. Correlation coefficient, R, between IRI model equatorial vertical drift and IRI-Bo, IRI-Te, IRI-Ti, IRI-TEC, and IRI-Ne at 300 km height during daytime, nighttime and daytime-nighttime conditions for four different seasons under low solar flux periods of 1987.

From: Equatorial vertical plasma drifts and the measured and IRI model-predicted F2-layer parameters above Ouagadougou during solar minimum

Parameters

Month

Day

Night

Day and night

Vz/Bo

January

0.45

0.71

0.83

 

April

−0.07

0.85

0.91

 

July

0.47

0.55

0.82

 

October

−0.30

0.88

0.90

Vz/Te

January

0.73

0.81

0.87

 

April

−0.04

0.82

0.77

 

July

0.31

0.31

0.78

 

October

−0.27

0.83

0.74

Vz/Ti

January

0.49

0.01

0.61

 

April

0.31

−0.35

−0.20

 

July

0.30

−0.41

−0.68

 

October

−0.01

0.12

0.24

Vz/TEC

January

0.34

0.81

0.75

 

April

−0.46

0.51

0.82

 

July

−0.43

0.62

0.70

 

October

−0.46

0.37

0.77

Vz/Ne

January

0.21

0.49

0.38

 

April

−0.10

0.00

0.62

 

July

−0.88

0.54

0.59

 

October

−0.86

−0.51

0.59