Opened 7 weeks ago

Closed 5 weeks 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>

Description

Hi

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

source=/work/n02/n02/vidale/ancil/n512e_orca025_go6.1_hadisst2_115/um_ancils_gl

which points to

/work/n02/n02/karthee/ancil/atmos/n512e_orca025_go6v2/

but

/work/n02/n02/karthee/ancil/atmos/

now links to

/work/n02/n02/grenvill/GA7-ancils/ancil/atmos/

which doesn't exist anymore.

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

source=fcm:ancil_data.xm_br/dev/davidwalters/r298_GA7_ancil_versions_files/ancil_versions/n216e_orca025/GA6.0_Pack136.19_AMIP/ancils@752

but I can't find that branch online.

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

fcm:ancil_data.xm_tr/ancil_version/n216_orca025/GA7.1/v1/ancils@4110

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!

Cheers
Markus

Change History (6)

comment:1 Changed 7 weeks ago by grenville

Markus

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.

Grenville

comment:2 Changed 7 weeks 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?

Cheers
Markus

comment:3 Changed 6 weeks ago by grenville

Markus

I regret that I don't know of HadISST data available as time series. You could create your own from data here - http://www.metoffice.gov.uk/hadobs/hadisst/data/download.html

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

Grenville

comment:4 Changed 6 weeks 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!

Cheers
Markus

comment:5 Changed 6 weeks ago by grenville

Markus

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

Grenville

comment:6 Changed 5 weeks 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

/work/y07/y07/umshared/CMIP6_ANCIL/data/ancils/n216e/timeseries_1870-2016/SstSeaIce

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

Cheers
Markus

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