​IRI2020 (International Reference Ionosphere 2020)​​ model

The ​IRI2020 model is an empirical standard model for ionospheric parameters.

IRI2020 Model Documentation

The ​IRI2020 (International Reference Ionosphere 2020)​​ model is an empirical standard model for ionospheric parameters. It provides electron density profiles and other ionospheric characteristics based on location, time, and altitude inputs.

​Key Features:​​

• Calculates electron density (Ne/m³) profiles
• Supports altitude ranges from 60 km to 2000 km
• Accepts both datenum and datetime formats for time input
• Returns a structured output with comprehensive ionospheric data

Usage Example

% Clear workspace

clc; clear;

% Define input parameters

mydate = [2025 10 3 12 0 0]; % [year month day hour minute second]

latitude = 45; % degrees

longitude = 120; % degrees

altitude_range = 100:10:1000; % km (from 100 to 1000 km in 10 km steps)

% Call IRI2020 model

OutData = IRI2020(latitude, longitude, mydate, altitude_range);

% Plot electron density profile

figure;

plot(OutData.dens, OutData.alt, 'k-');

set(gca, 'XMinorTick', 'on', 'YMinorTick', 'on');

xlabel('Electron Density (Ne/m³)', 'fontsize', 8);

ylabel('Height (km)', 'fontsize', 8);

set(gca, 'fontsize', 8, 'fontname', 'times');

title(['UTC @ ', datestr(mydate)]);