Refmod 99

This set of climatological profiles are based on files provided to
Patrick Eriksson by Johan Mellqvist (also at Chalmers). Refmod is
commonly used in the ground-based FTIR community as a priori for their
inversions. The Refmod profiles are to a large extent taken from the
ATMOS missions climatology, but other sources have also been used. 
The stated source is found in the header of the files.

Different versions of Refmod exist. This set of profiles were
extracted from a file denoted as refmod99 (which you also found in the
directory). This shall be the latest version of Refmod. The Refmod
profiles are given as functions of altitude. The profiles cover the
range 0 - 100 km, defined at 41 altitudes. The profile altitudes
are specified at the top of the files starting with zpt.

The Refmod profiles were combined with pressure, temperature and
altitudes from the 1976 U.S. standard atmosphere. These profiles were
provided in a file containing 36 altitudes. 

The ARTS files were created by a Matlab function called do_refmod. This
function is included in the folder. The function requieres that AMI
is in the Matlab search path.

Remaining files provided by Johan are found in the folder from_johan, 
where e.g. other Refmod profiles are found but Johan was not sure about
for what conditions they are valid.

Mail me if you have any questions (patrick@rss.chalmers.se)

Patrick Eriksson, 2002-01-25