Short Description of CMIP5 Experiments

Table 3 : Baseline simulations for model evaluation and for understanding historical and paleoclimates.

Exp 3.1

Experiment	Short Name	Exp Nb	Tier	Nb of year	Short description
pre-industrial control (1800-)	piControl	3.1	core	> 500	Coupled atmosphere/ocean pre-industrial control run. Prescribed atmospheric concentrations of (i) all well-mixed gases (including CO2) (ii) some short-lived (reactive) species. Prescribed non-evolving emissions or concentrations of (i) natural aerosols or their precursors (ii) some short-lived (reactive) species. Unperturbed land use.

Exp 3.2

Experiment	Short Name	Exp Nb	Tier	Nb of year	Short description
historical (1850-2005)	historical	3.2	core	156	simulation of recent past (1850-2005) Impose changing conditions (consistent with observations), which may include: (i) atmospheric composition (including CO2), due to both anthropogenic and volcanic influences (ii) solar forcing (iii) emissions or concentrations of short-lived species and natural and anthropogenic aerosols or their precursors (iv) land use

Exp 3.3

Experiment	Short Name	Exp Nb	Tier	Nb of year	Short description
AMIP (1979-2009)	amip	3.3	core	> 30	AMIP (1979- at least 2008) Impose SSTs & sea ice (from observations), but with other conditions (including CO2 concentrations and aerosols) as in expt. 3.2. See expt. 6.5 for further recommendations from CFMIP.

Exp 3.4

Experiment	Short Name	Exp Nb	Tier	Nb of year	Short description
mid-Holocene	midHolocene	3.4	tier 1	> 100	impose Mid-Holocene conditions, consistent with PMIP

Exp 3.5

Experiment	Short Name	Exp Nb	Tier	Nb of year	Short description
last glacial minimum	lgm	3.5	tier 1	> 100	impose last glacial maximum conditions, consistent with PMIP

Exp 3.6

Experiment	Short Name	Exp Nb	Tier	Nb of year	Short description
last millenium	past1000	3.6	tier 2	1000	impose forcing for 850-1850, consistent with PMIP

Table 4 :

Exp 4.1

Experiment	Short Name	Exp Nb	Tier	Nb of year	Short description
last millenium	past1000	3.6	tier 2