zzhli / iri2016

International Reference Ionosphere 2016 from Python and Matlab

IRI2016 ionosphere model from Python and Matlab

Python and Matlab interfaces to the International Reference Ionosphere (IRI) 2016 model. A Fortran compiler is required to build the IRI2016 code.

Install

Prerequisites

• Python >= 3.6
• Fortran compiler--just about any modern Fortran compiler will do. Here's how to get Gfortran:
  • Linux: apt install gfortran
  • Mac: brew install gcc
  • Windows

and then install latest release:

pip install iri2016

if you want the latest development version:

git clone https://github.com/space-physics/iri2016

cd iri2016

python3 setup.py develop --user

This Python wrapper of IRI2016 uses our build-on-run technique. The first time you use IRI2016, you will see messages from the Meson build system and your C compiler.

Troubleshooting

if error

ImportError: libf77blas.so.3: cannot open shared object file: No such file or directory

try installing Atlas math library used by Numpy

apt install libatlas-base-dev

Usage

• Altitude Profile: plot density and temperatures vs altitude

  python AltitudeProfile.py 2003-11-21T12 -11.95 -76.77

  

• Latitude profile: plot densities and height at the peak of F2, F2, and E regions vs geographic latitude

  python LatitudeProfile.py 2004-11-21T17 -76.77

  

• Time profile: plot densities and height at the peak of F2, F2, and E regions vs UTC

  python TimeProfile.py 2014-11-21 2014-11-22 1 -11.95 -76.77

  

  

  

• Latitude vs Longitude: plot of foF2 a function of geographic latitude and longitude

Matlab / GNU Octave

IRI2016 is readily accessible from Matlab and GNU Octave. From within Matlab / Octave, verify everything is working by from the iri2016/tests directory:

test_iri2016

• iri2016.m function accesses IRI2016 quantities.
• RunIRI2016.m is a simple example use with plots.

Data files

iri2016/iri2016/data/index/{apf107,ig_rz}.dat are regularly updated. Currently we don't auto-update those.

Notes

• 2016 presentation