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| 1 | +# RELEASE NOTES for FV3 202411: Summary |
| 2 | +FV3-202411-public --- November 2024 |
| 3 | +Lucas Harris, GFDL lucas.harris@noaa.gov |
| 4 | + |
| 5 | +This version has been tested with: |
| 6 | +FV3 Dynamical Core release FV3-202411-public from https://github.com/NOAA-GFDL/GFDL_atmos_cubed_sphere |
| 7 | +FMS release 2024.03 from https://github.com/NOAA-GFDL/FMS |
| 8 | +FMS Coupler release 2024.03.01 from https://github.com/NOAA-GFDL/FMScoupler |
| 9 | +Atmos Drivers release FV3-202411-public from https://github.com/NOAA-GFDL/atmos_drivers |
| 10 | + |
| 11 | +This release includes the following: |
| 12 | +- Support for running SHiELD in the full FMSCoupler (Joseph) |
| 13 | +- GFDL Microphysics (Linjiong) |
| 14 | + - Replaced the hardcoded qa with aerosol data |
| 15 | + - Replaced the hardcoded hydrostatic with the input hydrostatic variable |
| 16 | + - Added two namelist options (fast_fr_mlt and fast_dep_sub) to control freezing/melting and deposition/sublimation in the fast microphysics. |
| 17 | + - Included a missing term in the energy conservation formula (credit: Tristan Abbott). May affect prediction of processes depending strongly on microphysics. Compile the model with -DENG_CNV_OLD to revert this change. |
| 18 | + - Added diagnostic cloud content and cloud effective radii of all cloud hydrometeors (qc*, re*). |
| 19 | + - Added diagnostic microphysical process rate (mpp*). |
| 20 | + - Removed unused Keihl et al. (1994) cloud water effective radius diagnosis. |
| 21 | + - A new COSP output variable named clisccp was added. |
| 22 | +- Surface processes and PBL (Kun, Linjiong, Kai, Spencer) |
| 23 | + - Brought EMC updates from dev/emc branch related to TKE-EDMF, deep and shallow convection schemes |
| 24 | + - Added a constraint to the PBL bottom layer to prevent negative water vapor. |
| 25 | + - Revise the surface process to prevent excessive downward latent heat transfer |
| 26 | + - Exposed additional tunable parameters in TKE-EDMF PBL scheme |
| 27 | + - Fix miscalculated albedo over the ocean when ialb = 2 |
| 28 | + - Slab ocean bug fixes and enhancements |
| 29 | + - Upgraded land-ice related processes in Noah-MP based on version 4.5 of the official Noah-MP repository and some updates from NCAR/ccpp-physics, mostly from EMC. |
| 30 | + - Computing the snow height within the snowwater_glacier and snowwater subroutines |
| 31 | + - Limiting the compaction of snow in various places |
| 32 | + - Calculating the equilibrium state of snow only if snow exists. The maximum water depth becomes a tunable parameter and its default value remains 5 m. |
| 33 | + - Prescribed soil color capability |
| 34 | + - Prescribed snow albedo capability |
| 35 | +- Convection schemes (Kun, Linjiong) |
| 36 | + - Brought EMC updates from dev/emc branch |
| 37 | + - Merged samfshalcnv_gfdl.f and samfshalcnv.f. Use gfs_physics_nml::limit_shal_conv = .true. to recover samfshalcnv_gfdl. |
| 38 | + - Created the shallow convection option 5 based on option 3, to turn off the shallow convection scheme if the diagnosed cloud depth or cloud top exceeds certain critical values (set by cthk_shal and top_shal, respectively) |
| 39 | + - Added a parameter dxcrtas to the deep convection; for grid-spacing less than this (default 8000 m) the AS's quasi-equilibrium assumption is considered invalid. |
| 40 | +- Radiation (Kai) |
| 41 | + - Added a namelist option, gfs_physics_nml::fco2_scaling to uniformly scale CO2 |
| 42 | +- Diagnostics (Spencer) |
| 43 | + - Added pressure_level_extrapolate, blended-area-weighted, and simplest model_level_area_weighted coarse-graining strategies. |
| 44 | + - Implemented area-weighted mean over the dominant surface type for the snoalb, shdmin, and shdmax surface fields. |
| 45 | + - Fixed a bug that affected coarse-graining the soil type field and some other soil properties downstream. |
| 46 | + - Additional CO2 and surface-type fraction diagnostics. |
| 47 | +- Software updates (Spencer, Lucas, Joseph) |
| 48 | + - Updates for running SHiELD in the FV3net Python wrapper |
| 49 | + - Bugfix in ozphys.F for ldiag3d = .true.. |
| 50 | + - Cleaned up obscure diagnostics in radiation_astronomy.f. |
| 51 | + - Namelist option gfs_physics_nml::landseaprt to allow turning off land/sea partitioned global intervals in stdout. |
| 52 | + - Added variable-by-variable defined missing_value to gfdl_diag_type. |
| 53 | + - Add additional atmos driver files to run SHiELD and SHiEMOM with the full FMScoupler, mimicking the structure of AM4 atmos_phys. |
| 54 | + - Several diagnostic bug fixes. |
| 55 | + |
| 56 | + |
1 | 57 | # RELEASE NOTES for FV3 202305: Summary
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2 | 58 | FV3-202305-public --- May 2023
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3 | 59 | Lucas Harris, GFDL lucas.harris@noaa.gov
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