Matrix of Mars GCMs

	GISS	GFDL	AMES	LMD	UK	MM5 (mesoscale)
Parent Model	Model II	Skyhi	?	?	UK Meteorlogical Office (Lorenc et al. 1991)	Penn State / NCAR / GFDL (Anthes & Werner 1978; Dudhia 1993)
Type	Grid	Grid	u-v & grid	hybrid; grid in rho coords	Spectral	Grid: Arakawa "B"
Resolution	8x10	5x6	7.5x9 adjustable	5x5 adjustable	6 degrees	102 to 105m
Height	6b; 40km; 23 layers	85km; 20 layers	0.067mbar; 47km; 13 layers	240km; (32 levels to 120km)	90km; 20 levels	5Pa; 50km
Dust	tau?	emergent	interactive	tau = const (Lewis et al., 2001b)	tau	?

Websites:

• GISS: http://www.giss.nasa.gov/research/briefs/allison_x1/
• GFDL: http://www.gfdl.noaa.gov/~rjw/
• AMES: http://www-mgcm.arc.nasa.gov/MGCM.html
• LMD: http://www-mars.lmd.jussieu.fr/
• UK: ?
• MM5: http://www.mmm.ucar.edu/mm5/

Reference Paper:

• GISS: Allison, M., J.D. Ross, and N. Solomon 1999. Mapping the Martian meteorology. In Fifth International Conference on Mars. LPI Contribution No. 972. Lunar and Planetary Institute. Houston.
• GFDL: Martian Paleo Climate w/ GFDL: Mischna et al., 2003
• AMES: Pollack et al., 1990
• LMD: ?
• UK: ?
• MM5: ?

Misc Notes

GISS:

• CO2 sublimation

GFDL:

• 12 layer subsurface
• CO2 cycle (ice cap extent seasonal)
• water cycle
• radiation w/ thermal/IR dust & gas
• dust transport
• size-dependent sedimentation