The single column model (SCM) is the 1D version of th 3D ARPEGE-ALADIN operational model. It can be used for different purposes :
– make predictions in 3D model forced mode
– test the physical package on observational datasets as well as on idealized profiles
– Develop surface variational assimilation, while using tangent linear and adjoint versions of the SCM.

Since the SCM is a 1D version of the ARPEG-ALADIN 3D model, for which a documentation already exists, this documentation only briefly reminds basic equations and hypothesis of the 3D model but points out SCM specificities, like the forcing.

• Main features
• Scientifical aspects
  • Basic equations
  • Temporal loop
  • Forcing
  • Observational datasets available
• Algorithmical aspects : SCM fortran code organization
  • 1D <> 3D sources consistency
  • Calling tree
  • Data flow
  • Temporal loop
  • Stretching
  • Forcing
  • Real data precision
  • DDH diagnostics
• Practical aspects
  • Authors address
  • UNIX directories tree
  • Install
  • Run
  • File I/O: LFA software
  • Use resulting data
  • Create your own profiles and forcings
  • Streching
  • Deal with sources
• History