Up to Transformations and interpolations
Hello, One question about an Oasis-MCT functionality : is it possible with OASIS-MCT to have one source field and multiple target fields, i.e only one "put_prism" in source model and multiple "get_prism" in target model (target fields would be the result of different interpolations of the same source field) ? Thanks ! Arnaud
Hi Arnaud,
Yes, it is possible to send one source field to multiple target fields using one "oasis_put" and multiple "oasis_get", but you have to define a different restart file for the source field for each target field (you have more documentation at the address: http://www.cerfacs.fr/oa4web/oasis3-mct/oasis3mct_UserGuide/node65.html.php). Below is an example of the corresponding namcouple file when one field is sent to two targets fields :
M3FLD05 M1FLD05 3 7200 4 rst4.nc EXPOUT
96 72 182 149 lmdz torc
P 0 P 2
CHECKIN MAPPING BLASNEW CHECKOUT
INT=1
rmp_lmdz_to_torc_BILINEA.nc src
1.0 1
CONSTANT -8000.0
INT=1
#
M3FLD05 M2FLD05 3 10800 3 rst5.nc EXPOUT
96 72 182 149 lmdz lmdz
P 0 P 0
CHECKIN LOCTRANS CHECKOUT
INT=1
AVERAGE
INT=1
with rst4.nc :
netcdf rst4 {
dimensions:
M3FLD01_ny = 72 ;
M3FLD01_nx = 96 ;
variables:
double M3FLD05(M3FLD01_ny, M3FLD01_nx) ;
// global attributes:
:NCO = "4.0.8" ;
:history = "Mon Jun 17 10:54:20 2013: ncrename -v M3FLD01,M3FLD05 rst4.nc" ;
}
and in rst5.nc :
netcdf rst5 {
dimensions:
M3FLD01_ny = 72 ;
M3FLD01_nx = 96 ;
variables:
double M3FLD05(M3FLD01_ny, M3FLD01_nx) ;
// global attributes:
:NCO = "4.0.8" ;
:history = "Mon Jun 17 10:54:20 2013: ncrename -v M3FLD01,M3FLD05 rst4.nc" ;
}
Best regards, Laure
Thanks Laure. T his new functionality is very nice. One question about your answer : is it really mandatory to have different restart files ? In the case of same time transformations, same coupling frequency,...and only different spatial interpolations, it seems to me that the source fields stored in restart files would be the same...and so, that would work with the same restart file...what do you think ? Does the following example work ? M3FLD05 M1FLD05 3 7200 4 rst4.nc EXPOUT 96 72 182 149 lmdz torc P 0 P 2 CHECKIN MAPPING BLASNEW CHECKOUT INT=1 rmp_lmdz_to_torc_BILINEA_1.nc src 1.0 1 CONSTANT -8000.0 INT=1 # M3FLD05 M2FLD05 3 7200 4 rst4.nc EXPOUT 96 72 182 149 lmdz torc P 0 P 2 CHECKIN MAPPING BLASNEW CHECKOUT INT=1 rmp_lmdz_to_torc_BILINEA_2.nc src 1.0 1 CONSTANT -8000.0 INT=1 Thanks ! Regards, Arnaud
Hi Arnaud, Yes you are right, in the case of same time transformations, same coupling frequency,...and only different spatial interpolations, it is possible to use only one restart file for the source file, but it is a particular case. Best regards, Laure