The LFM is a global MHD model written by John \*L*yon, Joel \*F*edder and Clark \*M*obarry).  It is primarily used to better understand Earth's Magnetosphere.  The LFM can be coupled with a variety of models to aide in understanding of the physical processes in Geospace , such as:
* Magnetosphere Ionosphere Coupler/Solver (MIX)
* Thermosphere Ionosphere Electrodynamic General Circulation Model [TIEGCM|]
* Rice Convection Model (RCM)
The coupled combination of models is called the LTR (LFM-TIEGCM-RCM).

This wiki serves as the canonical reference the software that comprises the LTR.  This documentation contains limited scientific descriptions of the models; this wiki is intended as a guide to compiling & executing the code.

{info:title=Note}The LTR models and documentation are constantly evolving. This wiki documents the latest release. In some cases, this includes documentation for unreleased/upcoming features. You should make pay attention to [the LTR-announce mailing list|] and make sure you're using the [latest release|]. You can find a list of upcoming features via [the LTR roadmap|].{info}

h2. Scientific Documentation

* The October-November 2004 [Journal of Atmospheric and Solar-Terrestrial Physics|] special issue: [Towards an Integrated Model of the Space Weather System|] (i.e. [Lyon 2004|"The+Lyon-Fedder-Mobarry+(LFM)+global+MHD+magnetospheric+simulation+code"&btnG=Search]).
* The publications and presentations listed at the [BU CISM website|]
* [LFM Field Aligned Current calculation|] \- Notes on the LFM inner boundary conditions.  Gives insight into the calculation of {latex}$J_{\parallel}${latex}, which is sent to [LTR:MIX].
* 2010 Merkin, & Lyon [Effects of the low-latitude ionospheric boundary condition on the global magnetosphere|]

h2. Developer Documentation

* [Developer] -- LTR design discussion & coupling diagrams
* [Code runs|Developer-Code Runs] -- Runs used for development & testing
* [Tutorials] -- Introduction to Makefiles, C\++, A++ & P+\+
* [Doxygen|] automatically generated (and horribly out of date) source code documentation
* [Old wiki page|WikiHome-old] -- deprecated LTR documentation, linked here for historical preservation only.

h1. Acknowledgements

This material is based upon work supported by CISM which is funded by the STC Program of the National Science Foundation under Agreement Number ATM-0120950.  The National Center for Atmospheric Research is sponsored by the National Science Foundation.

Users Guide
* Installation
** Requirements
*** A\++, P++
*** PVM
*** InterComm
*** HDF4
*** HDF5?
*** Overture
** Obtaining the code

** Compile
* Run the code (Make It So)
** Command line
** Interactive
** Extending
* Reference
** LFM
** MIX
** RCM
** Coupled flavors
* Examples
** LFM-MIX: UTIO run
** LFM-RCM: March1995

* Support
** Contact information
** Bug Tracker
** Mailing list
* Acknowledgements?

Developers Guide
* Design docs
* Programming Tutorials