eORCA025.L121-OPM022

Summary

Compare to eORCA025.L121-OPM021, we perturb the JRA forcing by adding the A1B HadCM3 2160-2199 wrt 1979-2018 anomaly.

Namelist

Only the change compare to the reference (eORCA025.L121-OPM021) a mentioned in the next sections.

namelist_oce

!-----------------------------------------------------------------------
&namsbc_blk    !   namsbc_blk  generic Bulk formula                     (ln_blk =T)
!-----------------------------------------------------------------------
   !                    !  bulk algorithm :
   ln_NCAR      = .true.    ! "NCAR"      algorithm   (Large and Yeager 2008)
   ln_COARE_3p0 = .false.   ! "COARE 3.0" algorithm   (Fairall et al. 2003)
   ln_COARE_3p5 = .false.   ! "COARE 3.5" algorithm   (Edson et al. 2013)
   ln_ECMWF     = .false.   ! "ECMWF"     algorithm   (IFS cycle 31)
      !
      rn_zqt      =  2.       !  Air temperature & humidity reference height (m)
      rn_zu       = 10.       !  Wind vector reference height (m)
      ln_Cd_L12   = .false.   !  air-ice drags = F(ice concentration) (Lupkes et al. 2012)
      ln_Cd_L15   = .false.   !  air-ice drags = F(ice concentration) (Lupkes et al. 2015)
      ln_taudif   = .false.   !  HF tau contribution: use "mean of stress module - module of the mean stress" data
      rn_pfac     = 1.        !  multiplicative factor for precipitation (total & snow)
      rn_efac     = 1.        !  multiplicative factor for evaporation (0. or 1.)
      rn_vfac     = 0.        !  multiplicative factor for ocean & ice velocity used to
      !                       !  calculate the wind stress (0.=absolute or 1.=relative winds)
   cn_dir = './'
   !_______!__________________!___________________!___________!_____________!_________!___________!______________________________!__________!______!
   !       !  file name       ! frequency (hours) ! variable  ! time interp.!  clim   ! 'yearly'/ ! weights filename             ! rotation !  lsm !
   !       !                  !  (if <0  months)  !   name    !   (logical) !  (T/F)  ! 'monthly' !                              !  paring  !      !
   !_______!__________________!___________________!___________!_____________!_________!___________!______________________________!__________!______!
   sn_wndi = 'drowned_uas_JRA55_perturbed_A1B_HadCM3_21602200-19792019_anomaly'    ,  3.  ,  'uas'    ,    .true.   , .false. , 'yearly'  , 'eORCA025_JRA55_do_c3.0_weights_bicubic.nc' , 'U1' ,   ''
   sn_wndj = 'drowned_vas_JRA55_perturbed_A1B_HadCM3_21602200-19792019_anomaly'    ,  3.  ,  'vas'    ,    .true.   , .false. , 'yearly'  , 'eORCA025_JRA55_do_c3.0_weights_bicubic.nc' , 'V1' ,   ''
   sn_qsr  = 'drowned_rsds_JRA55_perturbed_A1B_HadCM3_21602200-19792019_anomaly'   ,  3.  ,  'rsds'   ,    .true.   , .false. , 'yearly'  , 'eORCA025_JRA55_do_c3.0_weights_bilin.nc' , ''   ,   ''
   sn_qlw  = 'drowned_rlds_JRA55_perturbed_A1B_HadCM3_21602200-19792019_anomaly'   ,  3.  ,  'rlds'   ,    .true.   , .false. , 'yearly'  , 'eORCA025_JRA55_do_c3.0_weights_bilin.nc' , ''   ,   ''
   sn_tair = 'drowned_tas_JRA55_perturbed_A1B_HadCM3_21602200-19792019_anomaly'    ,  3.  ,  'tas'    ,    .true.   , .false. , 'yearly'  , 'eORCA025_JRA55_do_c3.0_weights_bilin.nc' , ''   ,   ''
   sn_humi = 'drowned_huss_JRA55_perturbed_A1B_HadCM3_21602200-19792019_anomaly'   ,  3.  ,  'huss'   ,    .true.   , .false. , 'yearly'  , 'eORCA025_JRA55_do_c3.0_weights_bilin.nc' , ''   ,   ''
   sn_prec = 'drowned_tprecip_JRA55_perturbed_A1B_HadCM3_21602200-19792019_anomaly',  3.  ,  'tprecip',    .true.   , .false. , 'yearly'  , 'eORCA025_JRA55_do_c3.0_weights_bilin.nc' , ''   ,   ''
   sn_snow = 'drowned_prsn_JRA55_perturbed_A1B_HadCM3_21602200-19792019_anomaly'   ,  3.  ,  'prsn'   ,    .true.   , .false. , 'yearly'  , 'eORCA025_JRA55_do_c3.0_weights_bilin.nc' , ''   ,   ''
   sn_slp  = 'drowned_psl_JRA55_perturbed_A1B_HadCM3_21602200-19792019_anomaly'    ,  3.  ,  'psl'    ,    .true.   , .false. , 'yearly'  , 'eORCA025_JRA55_do_c3.0_weights_bilin.nc' , ''   ,   ''
   sn_cc   = 'NOT USED'             , 24.         ,  'CC'     ,   .false.   , .false. , 'yearly'  , ''                                        , ''   ,   ''
   sn_tdif = 'NOT USED'             , 24.         , 'taudif'  ,   .false.   , .true.  , 'yearly'  , 'eORCA025_JRA55_do_c3.0_weights_bilin.nc' , ''   ,   ''
/

Monitoring

Global indicators

On these plot you can find a time series of:

  • ACC transport

  • AMOC at rapid array

  • AMHT at rapid array

  • Net global heat fluxes

  • mean sst in the southern ocean (see box in the map)

  • mean sst in the North West Corner (see box in the map)

  • sea ice extent (arctic/ant in summer/winter)

_images/VALGLO_OPM022.png

Regional indicators

On these plot, you can find time series of:

  • ACC transport

  • Maximum of the Weddell and Ross Gyre (box where the max compute show in the map)

  • Mean bottom salinity over the main dense water formation hot spot (West Ross and West FRIS)

  • Mean bottom temperature over East Ross and Amudsen sea to monitor CDW intrusion

_images/VALSO_OPM022.png

Local indicators

These plots monitor the evolution of ice shelf melting and the corresponding shelf properties (ROSS, FRIS, PINE, GETZ)

_images/VALSI_OPM022.png

Amundsen/Belingshausen seas

These plot monitoring the evolution of temperature, salinity and ice shelf melt in Amundsen sea.

_images/VALAMU_OPM022.png

Evaluation

Ice shelf melt: the pictures below are the climatological melt for all the ice shelves in NEMO for the OPM021 and OPM022 simulations over the last decade of the simulations (2029-2038) by sectors.

_images/WAIS_2019_2028.png _images/EAIS_2019_2028.png _images/WEDD_2019_2028.png

Bottom properties:climatologie y2049-2058 (ie cycle 2 2008-2018).

_images/BOTS_PERT2160_comb.png _images/BOTT_PERT2160_comb.png