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RELEASE NOTES for FV3 202210: Summary

FV3-202210-public --- October 2022 Lucas Harris, GFDL [email protected]

This version has been tested with SHiELD physics release 202210 and with FMS release 2022.03 from https://github.com/NOAA-GFDL/FMS

This release includes the following:

  • Release of the GFDL Microphysics Version 3
  • Fix pressure-coarse-graining weighting from AI2's fork of FV3GFS
  • Add A-grid restart functionality from AI2's fork of FV3GFS
  • Fix for telescoping nest and GFS FIX file read
  • Total precipitation diag field has changed from prec to pret
  • Clean-up of the diagnostic messages to stdout

RELEASE NOTES for FV3 202204: Summary

FV3-202204-public --- April 2022 Lucas Harris, GFDL [email protected]

This version has been tested against the current SHiELD physics and with FMS release 2022.01 from https://github.com/NOAA-GFDL/FMS

This release includes the following:

  • Release of stand-alone solo_core functionality with simple physics.
  • Updated GFDL Microphysics, used for real-time 2021 C-SHiELD and T-SHiELD. (L Zhou)
  • Merges numerous updates from dev/emc.
  • Leverage DA functionality from UFS with additional changes (M Tong).
  • Updates to use the latest FMS release, including fms2_io.
  • Adds license header to missing files and fixes typo in header.
  • Fixes a bug where long_name and units attributes were not being captured in restart files.
  • Adds the ability to specify prefix and directory when reading and writing restarts.
  • The planetary radius and rotation rate are now re-scalable by a namelist parameter (small_earth_scale) instead of using exclusively the hard-coded FMS constant.
  • Removes obsolete driver/SHiELD files.
  • Removes unused function fv_diagnostics::max_vorticity_hy1.
  • Removes avec timer remnants.
  • Removes old style namelist read in favor of read from internal character variable.
  • Adds option for a mean wind.
  • Addresses GNU warnings.

RELEASE NOTES for FV3 202107: Summary

FV3-202107-public --- 08 July 2021 Lucas Harris, GFDL [email protected]

This version has been tested against the current SHiELD physics and with FMS release 2021.02 from https://github.com/NOAA-GFDL/FMS

This release includes the following:

  • Comprehensive documentation in LaTEX format (FV3 team)
  • Default changes to some namelist options and updated inline documentation
  • Multiple same-level and telescoping nests for the Regional domain (J Mouallem)
  • Updated fms2_io functionality (L Chilutti)
  • Revised Regional domain code (K-Y Cheng)
  • Reproducibility fixes for global+nests and regional+nests (tested for absolute reproducibility across PE counts, restarts)
  • Other updates and general cleanup

RELEASE NOTES for FV3 202101: Summary

FV3-202101-public --- 22 January 2021 Lucas Harris, GFDL [email protected]

This version has been tested against the current SHiELD (formerly fvGFS) physics and with FMS release candidate 2020.04 from https://github.com/NOAA-GFDL/FMS

This release includes the following:

  • Positive-definite advection scheme
  • In-line GFDL Microphysics
  • Fast-timescale Rayleigh damping
  • Updated namelist documentation
  • Implemented multiple same-level and telescoping nests for the global system (J Mouallem)
  • Updated coarse-graining capabilities (S Clark)
  • Re-organized fv_diagnostics, moving the revised fv_diag_column functionality and the declaration of diagnostic IDs to separate files
  • and other updates and general cleanup

This version of FV3 is described as component of SHiELD in Harris et al. (2020, JAMES).

Interface changes in 202101

atmosphere.F90: if using the in-line GFDL microphysics the precipitation rates (available in the structure Atm%inline_mp for rain, ice, snow, and graupel separately) must be passed into the physics and/or land model as appropriate. Here we demonstrate how to do this in SHiELD by copying them into IPD_Data(nb)%Statein%prep (and so on), which are newly defined in the IPD_Data structure within the SHiELD physics.

RELEASE NOTES for FV3 201912: Summary

FV3-201912-public --- 10 January 2020 Lucas Harris, GFDL [email protected]

This version has been tested against the current SHiELD (formerly fvGFS) physics and with FMS release candidate 2020.02 from https://github.com/NOAA-GFDL/FMS

Includes all of the features of the GFDL Release to EMC, as well as:

  • Updated 2017 GFDL Microphysics (S-J Lin and L Zhou included in GFSv15)
  • Updates for GFSv15 ICs (T Black/J Abeles, EMC)
  • Updates to support new nesting capabilities in FMS (Z Liang)
  • Re-written grid nesting code for efficiency and parallelization
  • Re-organized fv_eta for improved vertical level selection
  • 2018 Stand-alone regional capabilities (T Black/J Abeles, EMC)
  • Refactored model front-end (fv_control, fv_restart)
  • Support for point soundings
  • And other updates

Interface changes

drivers: renamed 'fvGFS' directory to SHiELD

atmosphere.F90: 'mytile' is renamed 'mygrid'

The non-functional gfdl_cloud_microphys.F90 has been removed and replaced with the 2017 public release given to EMC. Also added a proper initialization routine, that includes the use of INTERNAL_FILE_NML and thereby requires the input_nml_file argument. If you do not define the compiler flag INTERNAL_FILE_NML then you can delete this argument.

The namelist nggps_diag_nml has been eliminated. 'fdiag' is no longer handled by the dynamical core, and should be handled by the physics driver.

For a complete technical description see the NOAA Technical Memorandum OAR GFDL: https://repository.library.noaa.gov/view/noaa/23432