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IRI2016 International Reference Ionosphere from Python

Project description

IRI2016 ionosphere model from Python and Matlab

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

Install

Prerequisites

  • Fortran compiler--any modern Fortran compiler will do. Here's how to get Gfortran:
    • Linux: apt install gfortran
    • Mac: brew install gcc
    • Windows: consider MSYS2

and then install latest release:

pip install iri2016

if you want the latest development version:

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

pip install -e iri2016

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.

If you have errors about building on the first run, ensure that your Fortran compiler is specified in environment variable FC--this is what most build systems use to indicate the desired Fortran compiler (name or full path).

Manual build

This should not be necessary, but is included for troubleshooting purposes. This assumess you have a local copy of IRI2016 like:

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

cd iri2016

cmake -S iri2016 -B iri2016/build

cmake --build iri2016/build

Usage

  • Altitude Profile: plot density and temperatures vs altitude

    iri2016_altitude 2003-11-21T12 -11.95 -76.77
    

    image

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

    iri2016_latitude 2004-11-21T17 -76.77
    

    image

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

    iri2016_time 2014-11-21 2014-11-22 1 -11.95 -76.77
    

    image

    image

    image

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

setting JF flags

irisub.for has a few dozen logical flags stored in variable JF. To reconfigure those flags, edit iri2016_driver.f90 and recompile iri2016_driver.exe.

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

Matlab IRI2016 plot

Data files

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

Notes

Project details


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