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IRI 2012

version (1.7 MB) by Kip Knight
International Reference Ionosphere 2012 model


Updated 22 May 2014

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This is a class that implements the International Reference Ionosphere (IRI) 2012. The model has historical data and projections from 1958 to 2015. It is responsive to daily and seasonal variations and also to solar storms.

Cite As

Kip Knight (2021). IRI 2012 (, MATLAB Central File Exchange. Retrieved .

Comments and Ratings (8)

zhen xu


peng yaqi


Fabiano Rodrigues

safia khan


S.Behzad Hassani

Hi, Dears
For my thesis subject, I want to use these ways:
Using TEC From International References Ionosphere (IRI) model in (ɸ1,λ1) to (ɸ2,λ2) intervals.
As you know I have to use m_files of MATLAB software for IRI2012.
I was wondering if you would mind describing me how I can choose m_files and also priority of using those m_files during programming.
I want to ask one question more what is the concept of ‘context’ file in MATLAB m_files.
Thanks & Best regards
please help me ...
email address:


great work!
But there is an error:
Undefined variable "IGRF" or class "IGRF.MAXYEAR".
How to solve this problem?

MATLAB Release Compatibility
Created with R2013a
Compatible with any release
Platform Compatibility
Windows macOS Linux

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