wiki:UM/Configurations/HadGEM2

HadGEM2

Overview

HadGEM2 stands for Hadley Centre Global Environmental Model version 2. Please see the Met Office Collaboration Twiki for more information on the HadGEM2 model. (You will need to have registered first)

Example HadGEM2 Jobs Available on HECToR

Example jobs for HECToR phase 3 (Cray XE6) for the four standard configurations of HadGEM2 are available from the UMUI on PUMA under the userid umui. These jobs are as follows:

xgada: HadGEM2-ES r1.1 (derived from UKMO ajjra)

Full Earth system model.

The atmosphere model runs at N96 horizontal resolution (1.25° latitude × 1.875° longitude) with 38 vertical levels (L38) and a 30 minute time step. The ocean model runs at a resolution of 1° latitude × 1° longitude (with increased resolution near the equator), 40 vertical levels and a 1 hour time step.

xgadb: HadGEM2-CC L60 r1.1 (derived from UKMO akxva)

HadGEM2-CC L60 is based on the earlier HadGEM2-ES model (full Earth System model) but does not include the UKCA atmospheric chemistry scheme and it includes the vertical extension to 60 levels necessary to encompass the stratosphere and lower mesosphere.

  • Handedits and User STASHmaster files on PUMA
  • List of FCM branches
  • Start Files
  • List of ancillary files

xgadc: HadGEM2-AO r1.1 (derived from UKMO ajpfc)

HadGEM2-AO is based on the earlier HadGEM1 model (see Martin et al. 2006) and HadGEM2-AO-r1.0 but includes significant code changes. Atmosphere/ocean coupled model.

  • Handedits and User STASHmaster files on PUMA
  • List of FCM branches
  • Start Files
  • List of ancillary files

xgadd: HadGEM2-A (derived from UKMO akxxb)

AMIP Run

  • Handedits and User STASHmaster files on PUMA
  • List of FCM branches
  • Start Files
  • List of ancillary files

Using the Example HadGEM2 Jobs

All the above jobs have been setup and tested for use on HECToR.

Using the UMUI, take a copy of the job configuration you wish to run. Before submitting the job it is essential that you change some basic settings, by going to the following UMUI windows:

  • User Information and Target Machine → General Details

Set your Userid, Email Address and Tic Code

  • Sub-model Independent → FCM Configuration → FCM Configuration Variables

Set an appropriate value for "Target m/c root extract dir (UM_ROUTDIR)". This is a directory on HECToR, typically /home/n02/n02/<username>/um

  • Sub-model Independent → File and Directory Naming

Check that the settings for $DATAW and $DATAM are as you require.

The jobs are all set up to run for 30 days on 96 cores. Resubmission and automatic archiving are switched OFF. Please change these settings as appropriate.

Save, Process and then Submit your job.

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Last modified 6 years ago Last modified on 11/06/13 16:47:55