[Casa-framework] atmosphere API

[Raymond Rusk]

Hi George,

Is the present CASA atmospheric model API as defined by DOatmosphere.h ( 
http://aips2.nrao.edu/stable/docs/synthesis/implement/MeasurementComponents/Atmosphere.html) 
adequate for calibrater?  It is the result of a complete rewrite done by 
Gary and myself of the earlier DO written by Kumar.  However, I don't 
think either Kumar's DO, or Gary and my DO, were used by anyone so it is 
difficult to know whether they were useful, adequate, both or neither.

Now is a good time to specify exactly what we want since TELCAL has 
changed their ATM API so much the I need to do some work to make the 
library available as a tool in CASA.

The API that Gary and I implemented in our current DOatmosphere.h is close 
to the one that version 0.1 of the TELCAL ATM supported (see 
http://websqa.hq.eso.org/alma/snapshot/TELCAL-Reports/Documentation/Modules/TELCAL/TelCalResults/Libraries/ATM-0.1/api/).

However, this is quite a bit different from the new ATM API described at 
http://websqa.hq.eso.org/alma/snapshot/TELCAL-Reports/Documentation/Modules/TELCAL/TelCalResults/Libraries/ATM/api/.

I think that their new API may be more complicated than what we need and 
could be redone exposing just the functionality that we want in the CASA 
framework.  Consequently, I am wondering whether making what we have in 
DOatmosphere.cc continue to work in the new CASA framework would be the 
best approach.  It would not map directly to the current TELCAL ATM API 
though.

Raymond

-- 
Dr. Raymond Rusk                                        Dr. Raymond Rusk
ALMA Software Engineer                           Ingenieur Logiciel ALMA
National Research Council Canada   Conseil national de recherches Canada
Herzberg Institute of Astrophysics   L'Institut Herzberg d'Astrophysique
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Raymond.Rusk at nrc-cnrc.gc.ca                  Raymond.Rusk at nrc-cnrc.gc.ca