{P} Moist physics Grid Component

[FlorianDeconinck]

Physics parametrization for Moist processes (convection, large-scale condensation, precipitation and cloud parameters).

Main codes have been broken down in subtasks and G002.5 covers all the in-between code that need porting to merge all those codes under one critical path. We expect most of the component to be described, but some new tickets when difficulty arises are also expected.

ESMF/MAPL calls should all be left as-is, moved in Fortran if need be and/or designed around. This might lead to difficult decision where we need input from the SI team.

Configuration

• GFDL_1M
• GF2020

Source

Tech/Source	Name	Lead	Repository
ndsl	pyMoist	SMT	https://github.com/GEOS-ESM/GEOSgcm_GridComp/tree/dsl/develop
Fortran	GEOSmoist_GridComp	GMAO	https://github.com/GEOS-ESM/GEOSgcm_GridComp

GMAO POC: William Putman

Entry point of the critical path: GEOS_MoistGridComp.F90:RUN

---

• [NDSL] UW convection port GEOSgcm_GridComp#934
• [NDSL] GF convection port (GF2020) GEOSgcm_GridComp#935
• [NDSL] Microphysics port GEOSgcm_GridComp#936
• [NDSL] Radiation Coupling GEOSgcm_GridComp#937
• [NDSL] Hystpdf/Evap/Subl loop GEOSgcm_GridComp#938
• [NDSL] Merge all RUN components under one critical path GEOSgcm_GridComp#939
• [NDSL] Fill negative Q values GEOSgcm_GridComp#940
• [NDSL] Buoyancy GEOSgcm_GridComp#941
• [NDSL] Aer Activation GEOSgcm_GridComp#942
• [NDSL] Moist final saturation codes GEOSgcm_GridComp#943
• Vapor Saturation (QSat) table computation Fortran vs C f32 issues #88

---

Breakdown

• FILLQ2ZERO
• BUOYANCY2
• BUOYANCY
• Aer_Activation
• RAS_Run (⚠: Not executed?)
• GF_Run
• GF2020_Interface
• GF_GEOS5_Interface (🔴: Skipping breakdown since it's not our target)
• UW_Run
• BACM_1M_Run (🔴: Skipping breakdown since it's not our target)
  • GFDL_1M_Run
  • THOM_1M_Run (⚠: Not executed?)
  • MGB2_2M_Run (⚠: Not executed?)
  • GEOS_QsatICE
  • GEOS_DQSAT
  • GEOS_QsatLQU
  • GEOS_DQSAT
  • FILLQ2ZERO

[FlorianDeconinck]

Setup work: GEOS-ESM/GEOSgcm_GridComp#933 ✅

[FlorianDeconinck]

Full breakdown:

• FILLQ2ZERO
• BUOYANCY2
• BUOYANCY
• Aer_Activation
• RAS_Run (⚠: Not executed?)
• GF_Run
• GF2020_Interface
• GF_GEOS5_Interface (🔴: Skipping breakdown since it's not our target)
• UW_Run
• BACM_1M_Run (🔴: Skipping breakdown since it's not our target)
  • GFDL_1M_Run
  • THOM_1M_Run (⚠: Not executed?)
  • MGB2_2M_Run (⚠: Not executed?)
  • GEOS_QsatICE
  • GEOS_DQSAT
  • GEOS_QsatLQU
  • GEOS_DQSAT
  • FILLQ2ZERO

[FlorianDeconinck]

Code breakdown by @CharlesKrop and @katrinafandrich stored in: https://github.com/GEOS-ESM/SMT-Nebulae/tree/main/geos_documentation/moist