Opened 4 years ago

Closed 4 years ago

#2080 closed help (answered)

Data for nudging on MONSooN

Reported by: nfreychet Owned by: um_support
Component: UM Model Keywords:
Cc: Platform: MONSooN
UM Version: <select version>



Is there a directory on MONSooN for the input data for nudging (ERA

And same question for the needed fcm branches for UM8.5 (something like
fcm:um_br/dev/ptelford/vn7.3_nudge_updated/src and
fcm:um_br/dev/mdalvi/VN7.3_GregorianCal_fixes/src )


Change History (4)

comment:1 Changed 4 years ago by luke

Hi Nicolas,

The nudging data can be found on MONSooN here:


and there are sub-directories for ERA-40 (era-40/) and ERA-Interim (era-in/).

I'm not sure what branches would be required for vn8.5, if any. I'll try and find out.


comment:2 Changed 4 years ago by mdalvi


All changes from fcm:um_br/dev/ptelford/vn7.3_nudge_updated/src, -except the fixed_year option and support for NCEP data- are in the VN8.5 base code and should not require any branches.

Similarly, most of the changes from mdalvi/VN7.3_GregorianCal_fixes are in the base code.
If you are using 360-day ancillaries, you will need the branch :
fcm:um_br/dev/jwalton/vn8.5_ignore_calendar_UKMO/src, but make sure that you are not using any daily 360-day ancils (e.g. SST/SICE) with a 365-day/Nudged job.


comment:3 Changed 4 years ago by mdalvi

Further to above, I just realised you will hit issues related to shifted Polar V row on the ENDGame grid ar UM8.5, so will need to use the branch:

Note, this is a combination of fcm:um_br/dev/mdalvi/vn8.5_nudging_fix_polar_v and upgrade of fcm:um_br/dev/simon/vn8.4_nudging_tropopause_fix, both of which have been used individually, but not as a combined branched, so let me know if there are any issues.


comment:4 Changed 4 years ago by luke

  • Resolution set to answered
  • Status changed from new to closed

Mohit - many thanks for pointing to these branches.

I'll close this ticket now. Nicolas - please reopen it if you have any issues.

Best wishes,

Note: See TracTickets for help on using tickets.