The GLobal airglOW Model, independently and easily accessed using Fortran compiler. Available from scripting languages including Python and Matlab.
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.
Install/compile by:
git clone https://github.com/space-physics/ncar-glow
pip install -e ncar-glowConfirm the install with:
pytest ncar-glowThen use examples such as:
- Maxwellian.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
xarray.Dataset
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 FetchContent. To build Fortran code by itself, do either:
cmake -B build
cmake --build buildThe parallel version of GLOW requires MPI and NetCDF for TIEGCM I/O.
mpirun -np 2 ./mpi_glow.bin < ~/data/in.namelist.tgcmNote, 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.
The Matlab interface is in +ncarglow passing data to / from Glow over scratch disk binary files.
- Use built-in energy and altitude bins: Maxwellian.m
- user input energy grid: Monoenergetic.m