Radio-Occultation
Storm 2018: 235-241
Model: IRI-2016
Instrument: Radio-Occultation
FoF2 maps
Top panel shows the critical frequency (FoF2) values obtained by the radio-occultation (RO) measurements of COSMIC-1.
Bottom panel shows the corresponding FoF2 values computed using IRI-2016 model [default options].
y-axis is related to the magnetic latitude of IGRF.
x-axis is related to the day of year.
Histogram of error and correlation
Left panel shows the histogram of error between IRI-2016 and RO FoF2 measurements. of COSMIC-1
y-axis is related to number of occurrences of a specific error value.
x-axis is the FoF2 error.
The mean error (µ) and standard deviation of the error (σ) are shown in the top-right side of the plot.
Right panel shows the correlation (r) of the FoF2 measurements and IRI-2016 values.
hmF2 maps
Top panel shows the critical frequency (FoF2) values obtained by the radio-occultation (RO) measurements of COSMIC-1.
Bottom panel shows the corresponding FoF2 values computed using IRI-2016 model [default options].
y-axis is related to the magnetic latitude of IGRF.
x-axis is related to the day of year.
Storm event main phase starts in the beginning of DOY 076.
Histogram of error and correlation
Left panel shows the histogram of error between IRI-2016 and RO FoF2 measurements. of COSMIC-1
y-axis is related to number of occurrences of a specific error value.
x-axis is the FoF2 error.
The mean error (µ) and standard deviation of the error (σ) are shown in the top-right side of the plot.
Right panel shows the correlation (r) of the FoF2 measurements and IRI-2016 values.
Electron density profiles - daytime
Left panel shows the predominant patterns of the electron density profiles measured by radio-occultation techniques using COSMIC-1 data.
Middle panel shows the same, but measured by IRI-2016 [default options].
Right panel shows the predominant pattern of the errors between IRI-2016 and COSMIC-1 values.
y-axis is related to the altitude.
x-axis is related to the Ne values.
The color represents the normalized occurrence of a specific Ne value at a specific height. It can be understand as a normalized 2D histogram.
Electron density profiles - nighttime
Left panel shows the predominant patterns of the electron density profiles measured by radio-occultation techniques using COSMIC-1 data.
Middle panel shows the same, but measured by IRI-2016 [default options].
Right panel shows the predominant pattern of the errors between IRI-2016 and COSMIC-1 values.
y-axis is related to the altitude.
x-axis is related to the Ne values.
The color represents the normalized occurrence of a specific Ne value at a specific height. It can be understand as a normalized 2D histogram.