[Tgcmgroup] TIE-GCM v. 1.92

[Stan Solomon]

Dear Colleague -

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The Thermosphere Ionosphere Electrodynamics General Circulation Model 
(TIE-GCM) and its predecessors and successors were developed by Ray 
Roble and colleagues at NCAR over the past several decades.  Last 
summer we released TIE-GCM v. 1.9 as a 
"community-model-with-a-lower-case-c." at:
http://www.hao.ucar.edu/modeling/tgcm.

"community-model-with-a-lower-case-c" means that scientific 
colleagues can use the model, its source codes, and associated 
scripts and input files, with some limitations, under the auspices of 
an "academic research license" which is described at:
http://www.hao.ucar.edu/modeling/tgcm/download/files/tiegcmlicense.txt.

We are asking people to register, so that we can keep track, and send 
them email, but not very often.  We are also asking that people 
wishing to use the model keep us posted on what they are doing, 
collaborate, cite, and in general observe the "rules-of-the-road" 
suggested by the CEDAR program, TIMED mission, and similar traditions.

"community-model-with-a-lower-case-c" also means that we can only 
offer minimal support, particularly if you are attempting to install 
the model on your own computer.  But we will try to help as best we 
can if you have problems, or wish to discuss scientific issues 
related to the model.

The purpose of this email is to announce the availability of TIE-GCM 
v. 1.92, which has several updates, bugfixes, and improvements, as 
described in the release notes at:
http://www.hao.ucar.edu/modeling/tgcm/release_notes.php.

The most important changes are that the auroral precipitation oval 
used when running the Weimer '05 potential/convection model is 
improved and ready for "beta testers" or "friendly users," and that 
this version contains InterComm links that facilitate coupling to the 
Lyon-Fedder-Mobarry magnetosphere model.  In this coupled mode, we 
refer to the model as the Coupled Magnetosphere Ionosphere 
Thermosphere (CMIT) model.  CMIT 2.5 is still undergoing testing, but 
we hope that it will soon be available for runs-on-request at the 
Community Coordinated Modeling Center (CCMC).  TIE-GCM 1.92 will also 
be available at CCMC in stand-alone mode, which should meet the needs 
of many of you.

There is a decent Users Guide and a Documentation file.  The latter 
is incomplete but we are working on it.  Volunteers welcome!

Feedback is also welcome, and those wishing to participate in model 
development in a more formal manner (if you aren't already) should 
get in touch and join our on-line development group.  We are trying 
to expand our support capability as resources permit.

Thanks,
    Stan,
       for the HAO/NCAR Atmosphere-Ionosphere-Magnetosphere section