.. index:: Contributors

Contributors
------------

The GenChem system was created over many years:

  David Simpson, Norwegian Meteorological Institute & Chalmers, 
  1998-2020: wrote original GenChem.pl scripts, the
  boxChem system, assorted helper scripts (do.GenChem, boxplots.py, etc.), 
  and python3 conversion.

  Alan Briolat, Stockholm Environment Institute at York,  2013: wrote the
  first python version: GenChem.py.

  Hannah Imhof, Chalmers,  2016: added extra flexibility and types
  of arrays (e.g. factor groups), plus further scripts.  Added
  CRI and MCM chemical mechanisms.

  John Johansson, Chalmers, 2017-2020: worked with and improved many scripts
  from the GenChem system.

  Robert Bergström, Chalmers and SMHI, 2017-2020: development of
  chemical mechanisms (e.g. EmChem19a family, VBS schemes) for gas and aerosols.

  Alvaro Valdebenito, Norwegian Meteorological Institute, 2018-2019,
  various bug-fixes and updates. Added pollen.

  Michael Priestley, Univ. Gothenburg, 2020. Added Docker system and
  testing for Windows PCs.

.. comment::

  **  NOTE !!
  This user-guide is a work-in-progress manual on the GenChem system,
  with this interim version produced for interested users, Nov. 2019.
  **