s2s_prototype4.0

s2s_prototype4.0

tag is created on 20200518

This tag is made for ufs-s2s-model prototype 4 with new capabilities of:

1. Using CCPP gfsphysics
2. Enabling wave coupling: two way to atmosphere, two way to ocean and one way to ice

Major updates (compared to benchmark 3.1):

• FV3

  • exports water-only fluxes on ocean points to mediator for coupling with ocean
  • Uses Common Community Physics Package (CCPP) gfs physics
  • Adds option to run two way coupled with wave through roughness on ocean points
  • Updates for the new surface thermal roughness scheme
  • Lake temperature is updated to climatology in FV3 rather than nearest ocean point

• MOM6

  • Enable two way ocean-wave coupling, use Langmuir mixing from wave when ocean wave coupling enabled
  • Merge with GFDL dev/master 20200401
  • Fix thread-unsafe computations of advective tracer flux vertical sums

• WW3

  • Enable coupling with atmosphere, ocean, and ice. The wave model can receive 10 meter winds from atmosphere, ocean currents from ocean and ice concentration from ice. It can send surface roughness to atmosphere and Stokes drift to ocean

• CICE5

  • No major updates

• NEMS

  • Hot fixes from ufs public release v1.0 including documentation, default values in several model configuration variables

• Regression tests:

  • All the regression tests were changed from IPD gfsphysics to CCPP gfs physics
  • Script test rt.sh replaced NEMSCompsetRun
  • Two debug tests were added
  • Benchmark tests were updated to match benchmark 4 tests.
  • Regression test was set up on Orion

Note: code was also ported to wcoss phase2 for benchmark 4 test. (see tag s2s_prototyep4.0_phase2)

Benchmark test setting:

• FV3: C384L64 with CCPP suite file FV3_GFS_v15p2_coupled. input oro_data file is updated with lake fraction and lake depth fields added to identify lake points from ocean.
• MOM6: ¼ degree tripolar grid, 75 hybrid levels. OM4 MOM6 physics [Adcroft, et al. 2019]. Three bands of Stokes drift are used.
• CICE5: ¼ degree tripolar grid same as MOM6
• WW3: ½ degree regular lat/lon grid, current operational WW3 physics.
• Run sequence:

runSeq::  
  @@[coupling_interval_slow_sec]    
    MED MedPhase_prep_ocn  
    MED -> OCN :remapMethod=redist  
    OCN -> WAV  
    WAV -> OCN :srcMaskValues=1  
    OCN  
    @@[coupling_interval_fast_sec]  
      MED MedPhase_prep_ice  
      MED MedPhase_prep_atm  
      MED -> ATM :remapMethod=redist  
      MED -> ICE :remapMethod=redist  
      WAV -> ATM :srcMaskValues=1  
      ATM -> WAV  
      ICE -> WAV  
      ATM  
      ICE  
      WAV  
      ATM -> MED :remapMethod=redist  
      ICE -> MED :remapMethod=redist  
      MED MedPhase_atm_ocn_flux  
      MED MedPhase_accum_fast  
    @  
    OCN -> MED :remapMethod=redist  
    MED MedPhase_write_restart  
  @  
::

• resources:

Model fast loop time step: 450s, slow loop time step: 1800s

App/Major Component revision:

component	repository	revision	branch/tag
ufs-s2s-model	https://github.com/ufs-community/ufs-s2s-model	b116b71	tag: s2s_prototyep4.0
fv3	https://github.com/NOAA-EMC/fv3atm	e8fd6ee	develop
mom6-interface	https://github.com/NOAA-EMC/MOM6-interface	65141b6	develop
CICE-SRC	https://github.com/NOAA-EMC/CICE5	468841a	develop
WW3	https://github.com/NOAA-EMC/WW3	46bcb86	develop
NEMS	https://github.com/NOAA-EMC/NEMS	e88fd93	develop
FMS	https://github.com/NOAA-GFDL/FMS	708b8d5	tag: 2019.01
stochastic physics	https://github.com/noaa-psd/stochastic_physics	4b57c7c	master