Opened 10 months ago

Closed 9 months ago

#3274 closed help (answered)

HadISST ancillaries on ARCHER

Reported by: mtodt Owned by: um_support
Component: ARCHER Keywords: HadISST ancillary N216 ARCHER
Cc: Platform: ARCHER
UM Version: <select version>



I am trying to expand an N216 AMIP-style UM suite to start from 1960 instead of the 1980s, however, I cannot find suitable ancillary files for SST (and sea ice) on ARCHER. I can only find Reynolds SST data, which start in 1981. Pier Luigi Vidale pointed me to suites that he ran on ARCHER with HadISST ancillary files for 1957 to 2010 but it seems those ancillaries do not exist anymore, neither for N216 nor for N512. His suite ran on N512 and used


which points to




now links to


which doesn't exist anymore.

There's also an optional configuration file for N216 in Pier Luigi's suite, which links to


but I can't find that branch online.

I also found an UKESM suite using HadISST ancillaries and pointing to


but I can't find that branch either.

Have HadISST data on ARCHER been moved or do they not exist anymore? Would it be easier to transfer them from MONSOON or somewhere else? Thanks in advance for your help!


Change History (6)

comment:1 Changed 10 months ago by grenville


I believe /work/y07/y07/umshared/ancil/atmos/n216e/sst has hasdisst data.

I think it would be helpful if you got Monsoon access - there is more information about ancil versions in /projects/um1/ancil/data/ancil_versions/filenames.


comment:2 Changed 9 months ago by mtodt

Hi Grenville

Thanks for your help! The SST directory you pointed to on ARCHER only contains a climatology. I probably should have added that to my initial description, but I'm trying to find a time series of SST and sea ice like the Reynolds data. I can only find a climatology of HadISST on MONSOON either. Is that the only option, is there no time series of HadISST forcing?


comment:3 Changed 9 months ago by grenville


I regret that I don't know of HadISST data available as time series. You could create your own from data here -

ARCHER does have time series ssts in /work/y07/y07/umshared/CMIP6_ANCIL/data/ancils/n216e, but the source is not specified.


comment:4 Changed 9 months ago by mtodt

Hi Grenville

Thanks for continuing to look into SST data! I think I found ancillaries for SST and other fields on MONSOON under /projects/hirescm/hadom/ancil/atmos/n216e_highresmip/. I haven't transferred anything from MONSOON to ARCHER so far, and certainly not since the change in login to ARCHER. Would yo be able to copy that directory to ARCHER? It is about 147 GB. Thanks a lot fr your help!


comment:5 Changed 9 months ago by grenville


Please get a Monsoon account - that way you will be self-reliant. Email Monsoon@… to request an appication form.


comment:6 Changed 9 months ago by mtodt

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

Hi Grenville

I talked to Pier Luigi again and he said that it is better to use the ancillaries under


than the ones I found on MONSOON. So I'm going to close the ticket. Again many thanks for your help!


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