NCAR GLOW model
The GLobal airglOW Model, independently and easily accessed from Fortran 2003 compiler. Optionally available from scripting languages including:
- Python ≥ 3.6
- GNU Octave ≥ 4.2
- IDL / GDL
We describe each language below; pick the one(s) that apply for you. Python is the easiest and recommennded choice. A Fortran compiler is required in any case.
git clone https://github.com/space-physics/ncar-glow pip install -e ncar-glow
Confirm the install with:
Then use examples such as:
- Simple.py: Maxwellian precipiation, specify Q and E0.
- Monoenergetic.py: Specify unit flux for one energy bin, all other energy bins are zero flux.
or use GLOW in your own Python program by:
import ncarglow as glow iono = glow.simple(time, glat, glon, Q, Echar, Nbins)
iono is an
containing outputs from GLOW, including:
- number densities of neutrals, ions and electrons
- Pedersen and Hall currents
- volume emssion rate vs. wavelength and altitude
- precipitating flux vs. energy
- many more, request if you want it.
You can call this repo from a Meson wrap or CMake Fetch. To build Fortran code by itself, do either:
meson build meson test -C build
cmake -B build cmake --build build
MPI / NetCDF
The parallel version of GLOW requires MPI and NetCDF for TIEGCM I/O.
mpirun -np 2 ./mpi_glow.bin < ~/data/in.namelist.tgcm
Note, for an unknown reason,
in.namelist.msis only works with -O0 or -O1 with gfortran 7. We didn't look into why.
Otherwise, -O3 works fine.
Matlab / GNU Octave
The Matlab interface is in the matlab directory, and passes data to / from Glow over stdin / stdout pipes.
First, compile the Fortran code by running setup.m
NOTE: if using GNU Octave, version ≥ 4.2 is required for proper textscan() functionality
IDL / GDL
We have a small script for IDL / GDL thanks to Guy Grubbs. Let us know if you want this, we haven't taken the time to upload it yet.
Download the file for your platform. If you're not sure which to choose, learn more about installing packages.
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