Institut Pierre Simon Laplace (IPSL) CM4

Abbreviated Model Name:

IPSL_CM4

Ensemble:

CMIP3

Experiments:

20C3M (20th century experiment)

SRES A1B

SRES A2

SRES B1

Getting the Data

Data Access Link:

WCRP CMIP3 Multi-Model Data

The data may be downloaded using the FTP server, ftp-esg.ucllnl.org and your user credentials (form to request new account).

All but the snow depth (snd) data are available in the atm (atmosphere) folder; snow depth (snd) data are in the land folder.

Data File Format:

.nc

Data Filename Convention:

/project/scenario/submodel/frequency/variable/model/run/variable_A2_startyear-endyear.nc

Documentation

Model Documentation Link:

IPCC Data Distribution Centre

PCMDI Documentation

World Data Centre (select model run from table to see metadata)

CMIP Model Output Tables

CMIP5 Model Component Descriptions (ES-DOC)

Time and Space Information

Available Years of Data:

2046-2065

2081-2100

Length (years) of Files:

20 years

Spatial Coverage:

United States

Canada

Spatial Resolution (atmospheric):

2.5 degrees latitude, 3.75 degrees longitude

Variables and Units

only the variables that are being collected for the Ensemble are shown

Temperature

Mean Temperature Output Name:

tas

Mean Temperature Temporal Frequency:

Daily

Min/Max Temperature Output Name:

tasmin/tasmax

Min/Max Temperature Temporal Frequency:

Daily

Temperature Units:

Kelvin

Precipitation

Total Precipitation Output Name:

Total Precipitation Temporal Frequency:

Daily

Convective Precipitation Output Name:

prc

Convective Precipitation Temporal Frequency:

Monthly

Precipitation Units:

kg m-2 s-1

Sea Level Pressure

Sea Level Pressure Output Name:

psl

Sea Level Pressure Temporal Frequency:

Daily

Sea Level Pressure Units:

Pascal (Pa)

Wind

Wind Output Name:

uas/vas

Wind Temporal Frequency:

Daily

Wind Speed Units:

m/s

Snow

Snow Depth Output Name:

snd

Snow Depth Temporal Frequency:

Monthly

Snow Depth Units:

meters

Snowfall Flux Output Name:

prsn

Snowfall Flux Temporal Frequency:

Monthly

Snowfall Flux Units:

kg m-2 s-1

Figures

Representation of Great Lakes

Land-Sea Fractions

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Institut Pierre Simon Laplace (IPSL) CM4