AWI-CM3 v3.1

Changes to previous version

• Coupling Enthalphy of fusion of snow falling into open ocean #80.

• Coupling heat flux from divergence of SKT and T2M #81

• Upgrade from OpenIFS cy43r3v1 to cy43r3v2 #84 (Spectral Solar Insolation instead of Total Solar Iradiance)

• Weddell Sea Mixed Layer Depth & Polynya #86

• Putting melt pond albedo on better physical basis #89

• Gradient of surface sensible heat flux / wind speed vs (2m air temp - sea ice surf temp) #90

• Ocean current feedback coupling #91

• Coupling of mass and heat flux of snow falling on icesheets #96

Patch releases covered by this evaluation

These install as their own targets and carry the fixes below, but they leave the evaluation unchanged, so the figures further down describe them too.

• v3.1.1: fixed OpenIFS sources to allow for simulations with debug flags. Tag 3.1.1

• v3.1.2: fixed a bug that caused a double orbital forcing call. Tag 3.1.2

• v3.1.3: fixed a bug that made the L1PCTCO2 switch for the one percent per year CO2 increase malfunction. Tag 3.1.3 This fix is in neither v3.2 nor v3.2.1.

Model overview

Oasis fields

Spinup run

Spinup radiation budget Spinup temperature hovmöller

Historic run

Model performance indices Sea ice thickness Sea ice extent Weddell sea Coupling fluxes Zonal means Ocean temperature Ocean salinity ENSO AMOC Global warming

AWI-CM3.1 release diagnostics

Model components and coupling fields

Spinup radiation budget

Climate model performance indicies

Sea ice thickness

Sea ice extent

Weddell sea

Atmosphere biases

Zonal mean biases

Ocean temperature bias

Salinity bias

ENSO

AMOC

Global warming