GLobal airglOW Model of auroral and airglow emissions
New Modern Fortran GLOW with Python, Matlab, or MPI.
GLOW 0.973 Airglow/Auroral model -- now in Python!
A Fortran compiler is required:
apt install gfortran
brew install gcc
pip install -e .
This self-test should give zero errors. This tests the Fortran code from Python.:
volume emission rate plots
To produce the plots seen at the Github site:
with options including:
-t --simtimetime of simulation
-c --latlongeographic coordinate (lat,lon) [degrees]
-q --fluxtotal flux
with the volume emission rate and intermediate processes modeled for the given primary electron precipitation input. You can make this more generally useful as eigenprofiles in the next section.
production/loss rate eigenprofiles
This requires two steps:
- Generate unit input differential number flux vs. energy
- Compute ionospheric energy deposition and hence production/loss rates for the modeled kinetic chemistries (12 in total)
This is handled by the script
Matlab access to Glow
Matlab can use Glow via the Python interface, as in the example
(Thanks to Stephen Kaeppler to pointing these out)
Appendix (Not necessary for the typical user)
Download the GLOW v0.973 source code from Stan Solomon
Stan's team has released GLOW v0.98 using modern Fortran, but here's the original.
wget -r -np -nc -nH --cut-dirs=4 --random-wait --wait 1 -R "index.html*" http://download.hao.ucar.edu/pub/stans/glow/v0.973/
Download Stan's copy of IRI files
Stan tweaked IRI90 slightly, here's the copy he uses.
wget -r -np -nc -nH --cut-dirs=3 --random-wait --wait 1 -R "index.html*" http://download.hao.ucar.edu/pub/stans/iri/
compile the Fortran code by itself
The Fortran program used by itself spits out a lot of text as its output:
cd bin cmake ../src cmake --build .
./auroraexample < aurexample.in > aurtest.dat
High energy example
./hexexample < hexexample.in > hextest.dat
original Fortran code in directory
fortran/ as obtained from
http://download.hao.ucar.edu/pub/stans/glow/: "This software is part
of the GLOW model. Use is governed by the Open Source Academic Research
License Agreement contained in the file glowlicense.txt."
Python code and modifications to original Fortran code: GNU Affero GPLv3+
Download the file for your platform. If you're not sure which to choose, learn more about installing packages.
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