Graphical Representation of Climate Model Architecture

Kaitlin Alexander, University of Manitoba

Steve Easterbrook, University of Toronto

Intercomparison Projects

• CMIP5

• PMIP3

• GeoMIP

• Architecture?

GCMs EMICs• COSMOS 1.2.1• Model E• HadGEM3• CESM 1.0.2• GFDL CM 2.1• IPSL CM5A

• UVic ESCM 2.9

atmosphere ocean coupler

land sea ice

land ice

sedimentfluxes from atmosphere

fluxes from ocean …

IPSL CM5A

2-Sided Models

COSMOS

Star-ShapedModels

CESM

Atmosphere-Dominated Models

HadGEM3

Ocean-Dominated Models

UVic

Large Land Components

Model E

CESM COSMOS

Encapsulated Integrated

Sea Ice

Sea Ice Interface

GFDL

Problems

• Code not pre-processed

• Sorting into components

• PowerPoint

HadGEM2-ES

u_model

um_shell

atm_step

ukca_main1

ocn_step

ice_ctl

HadGEM2-ES

Going forward

• 8-9 models

• 2-3 EMICs

• AR5 configurations

AcknowledgementsScientists who helped out:• Gavin Schmidt (NASA GISS)• Tim Johns (Hadley Centre)• Gary Strand (NCAR)• Arnaud Caubel, Marie-Alice Foujols, Anne Cozic (IPSL)• Reinhard Budich (MPI-Met)• Michael Eby (UVic)

Funded by NSERC and the Centre for Global Change Science at the University of Toronto.

Questions?

If you want to take part, we’d love to analyse your model!

Kaitlin Alexanderkaitlin.a.alexander@gmail.com