Opened 7 years ago

Closed 7 years ago

#1095 closed help (invalid)

Running the UM with SST anomalies

Reported by: ab728 Owned by: willie
Component: UM Model Keywords: SST anomaly
Cc: luke.abraham@… Platform: HECToR
UM Version: 7.3

Description

Hi,

I am trying to force the model with a base SST climatology and an additional anomaly on top of it. I've changed the SST ancillary window in the UMUI (job xhkqg) and created a Generalised Ancillary File which contains both SST and anomaly fields using Xancil:
/home/n02/n02/ab728/work/ancils/RCP/sst_anomaly.anc

I get the following reconfig error:
/home/n02/n02/ab728/um/umui_out/xhkqg000.xhkqg.d13177.t141349.leave

Also tried playing around with getting the umui to read in a user defined ancilmaster_fields file but to no avail.

Would be grateful for some help.

Best wishes,
Tara

Change History (6)

comment:1 Changed 7 years ago by willie

  • Owner changed from um_support to willie
  • Platform changed from <select platform> to HECToR
  • Status changed from new to accepted

Hi Tara,

The error message is

 ERROR!!! in reconfiguration in routine Rcf_Ancil_Atmos
 Error Code:-  10
 Error Message:-  ITEMS namelist for Stash-Code 0,  39  : No ANCILmaster record ?
 Error generated from processor  0
 

and stash code 0,39 is the SST anomaly. I had a look at the ancillary file and the SST anomaly appear to be rubbish: you can check this in xconv. I'm not quite sure why you're getting error 10.

Regards,

Willie

comment:2 Changed 7 years ago by ab728

Hi Willy,

Thanks for your reply. Apologies! I've corrected the file. Will send off the job again now, although I suspect that the same error message will come up regardless of the file contents… Will let you know how it goes.

Best,
Tara

comment:3 Changed 7 years ago by ab728

Hi Willy,

I do get the same error unfortunately. Please let me know if you have any thoughts.

Thanks,
Tara

comment:4 Changed 7 years ago by willie

Hi Tara,

I am investigating the error 10 with the Met office: it looks like a code update is required …

Regards,

Willie

comment:5 Changed 7 years ago by willie

  • Cc luke.abraham@… added
  • Keywords SST anomaly added

Hi Tara,

A code change is required. The new code is present in UM8.2. There is a branch available at UM7.8 (at the Met office, UM/branches/dev/fris/vn7.8_SST_ANOM). However, these don't help at UM7.3. I think the best way forward is to find a UKCA version at UM8.2 preferably on HECToR, but MONSooN is also possible.

I hope that helps,

Regards,

Willie

comment:6 Changed 7 years ago by luke

  • Resolution set to invalid
  • Status changed from accepted to closed

Hi Willie,
cc Tara,

Running at UM8.2 isn't really feasible at the moment, at least in the short term, due to problems with UKCA in that model version (currently being debugged). I believe that we have found a work-around (this ticket is in fact an attempt to solve a model instability occuring in the model, which ticket #1053 seems to fix).

I've talked with Tara, and we think it's best to close this ticket.

Thanks,
Luke

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