Community ENKF V1.3 Online Tutorial | Case 3: Global T254 Case > Setting Up the EnKF Run

Case 3: Global T254 Case

Setting Up the EnKF Run

• Edit the EnKF run script in comenkf_run_gfs.ksh:
• The example run script (comenkf_run_gfs.ksh) is located in the comGSIv3.7_EnKFv1.3/ush directory of the GSI/EnKF system. Make the following changes to the script in order to run this case:

   

  ANAL_TIME	2014092918
  GFSCASE	enkf_glb_t254
  JOB_DIR	PATH/run/enkf_glb_t254
  RUN_NAME	case26-enkf-gfs
  OBS_ROOT	PATH/enkf_glb_T62/obs
  BK_ROOT	PATH/enkf_glb_T62/bkg
  GSI_ROOT	PATH/comGSIv3.7_EnKFv1.3
  CRTM_ROOT	PATH/CRTM_2.2.3
  diag_ROOT	PATH/run/case25-observer-gfs
  WORK_ROOT	${JOB_DIR}/${RUN_NAME}
  FIX_ROOT	${GSI_ROOT}/fix
  ENKF_EXE	${JOB_DIR}/enkf_gfs.x
  ENKF_NAMELIST	${GSI_ROOT}/ush/enkf_gfs_namelist.sh

   

    NMEM_ENKF=10
    NLEVS=64
    NVARS=5
    

  • Job head:
  • This part is the same as the GSI observer Job head
  • Define number of cores and machine type
  • This part is the same as the GSI observer Job head
  • define the following variables in comenkf_run_gfs.ksh based on previous setup:
  • NOTE:
    • The PATH should be replaced with a real path in your computer.
  • Define ensemble parameters

  The example script can be found : here