Radio-Occultation
Storm 2017: 248-254
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.
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.