Difference between revisions of "Advanced Use of the GCM"

From Planets
Jump to: navigation, search
(What you need to know about the z2sig.def file (for the change of the vertical resolution only))
(What you need to know about the z2sig.def file (change of vertical resolution only))
Line 17: Line 17:
 
=== What you need to know about the ''z2sig.def'' file (change of vertical resolution only) ===
 
=== What you need to know about the ''z2sig.def'' file (change of vertical resolution only) ===
  
 +
TO BE COMPLETED
  
 
  <!-- [NOT RELEVANT??] If you want to create starts files with tracers for 50 layers using a start archive.nc obtained for 32 layers, do not forget to use the ini_q option in newstart in order to correctly initialize tracers value for layer 33 to layer 50. You just have to answer yes to the question on thermosphere initialization if you want to initialize the thermosphere part only (l=33 to l=50), and no if you want to initialize tracers for all layers (l=0 to l=50). -->
 
  <!-- [NOT RELEVANT??] If you want to create starts files with tracers for 50 layers using a start archive.nc obtained for 32 layers, do not forget to use the ini_q option in newstart in order to correctly initialize tracers value for layer 33 to layer 50. You just have to answer yes to the question on thermosphere initialization if you want to initialize the thermosphere part only (l=33 to l=50), and no if you want to initialize tracers for all layers (l=0 to l=50). -->

Revision as of 21:27, 6 April 2022

Running in parallel

Distinctions beween ifort, mpi, etc.

Distinction between using IOIPSL or XIOS

How to Change Vertical and Horizontal Resolutions

To run at a different grid resolution than available initial conditions files, one needs to use the tools newstart.e and start2archive.e

For example, to create initial states at grid resolution 32×24×25 from NetCDF files start and startfi at grid resolution 64×48×32 :

  • Create file start_archive.nc with start2archive.e compiled at grid resolution 64×48×32 using old file z2sig.def used previously
  • Create files restart.nc and restartfi.nc with newstart.e compiled at grid resolution 32×24×25, using a new file z2sig.def (more details below on the choice of the z2sig.def)

What you need to know about the z2sig.def file (change of vertical resolution only)

TO BE COMPLETED


How to Change the Topography (or remove it)

How to Change the Opacity Tables

How to Manage Tracers