GFS_v17_p8_ugwpv1 Suite

Overview

The GFS_v17_p8_ugwpv1 suite is a prototype for the GFS v17, and is expected to evolve before the operational implementation. The primary differences between the GFS_v16 and GFS_v17 suites are:

• Microphysics: The replacement of GFDL_cloud with Thompson Aerosol-Aware Cloud Microphysics Scheme
• PBL and Convection updates
• Gravity Wave Drag: The replacement of GFS_UGWP_v0 with Unified Gravity Wave Physics (GWP) Scheme - Version 1
• Land Surface Model: The replacement of GFS_NOAH with NoahMP Land Surface Model

The GFS_v17 suite uses the parameterizations in the following order:

• RRTMG Shortwave/Longwave Radiation Scheme
• GFS Surface Layer Scheme
• Near-Surface Sea Temperature Scheme
• NoahMP Land Surface Model
• Sea Ice Scheme
• GFS Scale-aware TKE-based Moist Eddy-Diffusion Mass-Flux (EDMF) PBL and Free Atmospheric Turbulence Scheme
• Unified Gravity Wave Physics (GWP) Scheme - Version 1
• Ozone Photochemistry (2015) Scheme
• Stratospheric H2O Scheme
• Scale-Aware Simplified Arakawa-Schubert (sa-SAS) Deep Convection Scheme
• SAS-based Mass-Flux Scheme for Shallow convection (sa-MF)
• Thompson Aerosol-Aware Cloud Microphysics Scheme

Suite Definition File

<?xml version="1.0" encoding="UTF-8"?>
 
<suite name="FV3_GFS_v17_p8_ugwpv1" version="1">
  <!-- <init></init> -->
  <group name="time_vary">
    <subcycle loop="1">
      <scheme>GFS_time_vary_pre</scheme>
      <scheme>GFS_rrtmg_setup</scheme>
      <scheme>GFS_rad_time_vary</scheme>
      <scheme>GFS_phys_time_vary</scheme>
    </subcycle>
  </group>
  <group name="radiation">
    <subcycle loop="1">
      <scheme>GFS_rrtmg_pre</scheme>
      <scheme>GFS_radiation_surface</scheme>
      <scheme>rad_sw_pre</scheme>
      <scheme>rrtmg_sw</scheme>
      <scheme>rrtmg_sw_post</scheme>
      <scheme>rrtmg_lw</scheme>
      <scheme>rrtmg_lw_post</scheme>
      <scheme>GFS_radiation_post</scheme>
    </subcycle>
  </group>
  <group name="phys_ps">
    <subcycle loop="1">
      <scheme>get_prs_fv3</scheme>
      <scheme>GFS_suite_interstitial_1</scheme>
      <scheme>GFS_surface_generic_pre</scheme>
      <scheme>GFS_surface_composites_pre</scheme>
      <scheme>dcyc2t3</scheme>
      <scheme>GFS_surface_composites_inter</scheme>
      <scheme>GFS_suite_interstitial_2</scheme>
    </subcycle>
    <!-- Surface iteration loop -->
    <subcycle loop="2">
      <scheme>sfc_diff</scheme>
      <scheme>GFS_surface_loop_control_part1</scheme>
      <scheme>sfc_nst_pre</scheme>
      <scheme>sfc_nst</scheme>
      <scheme>sfc_nst_post</scheme>
      <scheme>noahmpdrv</scheme>
      <scheme>sfc_land</scheme>
      <scheme>sfc_sice</scheme>
      <scheme>GFS_surface_loop_control_part2</scheme>
    </subcycle>
    <!-- End of surface iteration loop -->
    <subcycle loop="1">
      <scheme>GFS_surface_composites_post</scheme>
      <scheme>sfc_diag</scheme>
      <scheme>sfc_diag_post</scheme>
      <scheme>GFS_surface_generic_post</scheme>
      <scheme>GFS_PBL_generic_pre</scheme>
      <scheme>satmedmfvdifq</scheme>
      <scheme>GFS_PBL_generic_post</scheme>
      <scheme>GFS_GWD_generic_pre</scheme>
      <scheme>ugwpv1_gsldrag</scheme>
      <scheme>ugwpv1_gsldrag_post</scheme>
      <scheme>GFS_GWD_generic_post</scheme>
    </subcycle>
  </group>
  <group name="phys_ts">
    <subcycle loop="1">
      <scheme>GFS_photochemistry</scheme>
      <scheme>GFS_photochemistry_post</scheme>
      <scheme>get_phi_fv3</scheme>
      <scheme>GFS_suite_interstitial_3</scheme>
      <scheme>samfdeepcnv</scheme>
      <scheme>GFS_DCNV_generic_post</scheme>
      <scheme>samfshalcnv</scheme>
      <scheme>GFS_SCNV_generic_post</scheme>
      <scheme>GFS_suite_interstitial_4</scheme>
      <scheme>cnvc90</scheme>
      </subcycle>
      <subcycle loop="1">
        <scheme>mp_thompson</scheme>
      </subcycle>
        <subcycle loop="1">
        <scheme>mp_thompson_post</scheme>
        <scheme>GFS_MP_generic_post</scheme>
        <scheme>maximum_hourly_diagnostics</scheme>
      </subcycle>
  </group>
  <group name="stochastics">
    <subcycle loop="1">
      <scheme>GFS_stochastics</scheme>
      <scheme>GFS_physics_post</scheme>
    </subcycle>
  </group>
  <!-- <finalize></finalize> -->
</suite>

Namelist

• General physics options
• GFS_unified_ugwp related options
• nstf_name = \([2,0,0,0,0]^1 [2,1,0,0,0]^2\)
  • \(^1\) NSST is on and coupled with spin up off
  • \(^2\) NSST is on and coupled with spin up on
• Grid-spacing dependency of cdmbgwd
  • C48: cdmbgwd="0.071,2.1,1.0,1.0"
  • C96: cdmbgwd="0.14,1.8,1.0,1.0"
  • C192: cdmbgwd="0.23,1.5,1.0,1.0"
  • C384: cdmbgwd="1.1,0.72,1.0,1.0"
  • C768: cdmbgwd="4.0,0.15,1.0,1.0"
  • C1152: cdmbgwd="4.0,0.10,1.0,1.0"
  • C3072: cdmbgwd="4.0,0.05,1.0,1.0"
• Grid-spacing dependency of knob_ugwp_tauamp
  • C48: knob_ugwp_tauamp=6.0e-3
  • C96: knob_ugwp_tauamp=3.0e-3
  • C192: knob_ugwp_tauamp=1.5e-3
  • C384: knob_ugwp_tauamp=0.8e-3
  • C768: knob_ugwp_tauamp=0.5e-3
  • C1152: knob_ugwp_tauamp=0.35e-3
  • C3072: knob_ugwp_tauamp=0.13e-3
• Grid-spacing dependency of xr_cnvcld
  • C48 and C96: xr_cnvcld =.false.