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IPCC 4th Assessment Report (2007): Scenario 1PTO4X

Scenario: 1PTO4X

Carbon dioxide concentrations are increased at a rate of 1% per year, until they quadruple; constant thereafter.More details on scenarios here.

Data Tables

Each block in the table contains links to one or more data files and to one information page (the `info' link) with further information.

The data files are 'tar' files with names of the form [model]_[scenario]_[variable]_[climatology].tar.

The model, scenario and variable are determined by the position in the table.

Each tar file contains several NetCDF files with names of the form: [model]_[scenario]_[ensemble number]_[variable]_[start-year]-[end-year].nc.

Different climatologies are indicated by the links within each table entry.

  • 20x: Twenty year averages, +20-39, +46-65, +80-99, +180-199 (as used in Chapt. 10 of IPCC 2007)
  • 30a: Thirty year averages, +01-30, +31-60, +61-90 (as used in the observational climatologies)
  • 30b: Thirty year averages, +10-39, +40-69, +70-99 (for compatibility with the 3rd Assessment Report)
The averaging period is relative to AD2000 for SRES scenarios A1B, A2 and B1, relative to AD1900 for the twentieth century run (20C3M) and relative to the start of the experiment for the pre-industrial control (PICTL) and the 1PCTO2X and 1PCTO4X runs.

Data available

Variable
Model precipitation
flux
air
pressure at
sea level
air
temperature
eastward
wind
northward
wind
specific
humidity
surface
downwelling
shortwave
flux in air
air
temperature
daily max
air
temperature
daily min
BCC:CM1 20x; 30a; 30b; info 20x; 30a; 30b; info 20x; 30a; 30b; info 20x; 30a; 30b; info 20x; 30a; 30b; info -- -- -- --
CCCMA:CGCM3_1-T47 20x; 30a; 30b; info 20x; 30a; 30b; info 20x; 30a; 30b; info 20x; 30a; 30b; info 20x; 30a; 30b; info 20x; 30a; 30b; info 20x; 30a; 30b; info -- --
CNRM:CM3 20x; 30a; 30b; info 20x; 30a; 30b; info 20x; 30a; 30b; info 20x; 30a; 30b; info 20x; 30a; 30b; info 20x; 30a; 30b; info 20x; 30a; 30b; info -- --
CONS:ECHO-G 20x; 30a; 30b; info 20x; 30a; 30b; info 20x; 30a; 30b; info 20x; 30a; 30b; info 20x; 30a; 30b; info -- 20x; 30a; 30b; info -- --
GFDL:CM2 20x; 30a; 30b; info 20x; 30a; 30b; info 20x; 30a; 30b; info 20x; 30a; 30b; info 20x; 30a; 30b; info -- 20x; 30a; 30b; info -- --
GFDL:CM2_1 20x; 30a; 30b; info 20x; 30a; 30b; info 20x; 30a; 30b; info 20x; 30a; 30b; info 20x; 30a; 30b; info -- 20x; 30a; 30b; info -- --
INM:CM3 20x; 30a; 30b; info 20x; 30a; 30b; info 20x; 30a; 30b; info 20x; 30a; 30b; info 20x; 30a; 30b; info 20x; 30a; 30b; info 20x; 30a; 30b; info 20x; 30a; 30b; info 20x; 30a; 30b; info
IPSL:CM4 20x; 30a; 30b; info 20x; 30a; 30b; info 20x; 30a; 30b; info 20x; 30a; 30b; info 20x; 30a; 30b; info -- 20x; 30a; 30b; info -- --
MPIM:ECHAM5 20x; 30a; 30b; info 20x; 30a; 30b; info 20x; 30a; 30b; info 20x; 30a; 30b; info 20x; 30a; 30b; info -- 20x; 30a; 30b; info -- --
MRI:CGCM2_3_2 20x; 30a; 30b; info 20x; 30a; 30b; info 20x; 30a; 30b; info 20x; 30a; 30b; info 20x; 30a; 30b; info 20x; 30a; 30b; info 20x; 30a; 30b; info -- --
NASA:GISS-ER 20x; 30a; 30b; info 20x; 30a; 30b; info 20x; 30a; 30b; info 20x; 30a; 30b; info 20x; 30a; 30b; info 20x; 30a; 30b; info 20x; 30a; 30b; info -- --
NCAR:CCSM3 20x; 30a; 30b; info 20x; 30a; 30b; info 20x; 30a; 30b; info -- -- 20x; 30a; 30b; info 20x; 30a; 30b; info -- --
NCAR:PCM -- 20x; 30a; 30b; info 20x; 30a; 30b; info -- -- -- 20x; 30a; 30b; info -- --
NIES:MIROC3_2-MED 20x; 30a; 30b; info 20x; 30a; 30b; info 20x; 30a; 30b; info 20x; 30a; 30b; info 20x; 30a; 30b; info 20x; 30a; 30b; info -- 20x; 30a; 30b; info 20x; 30a; 30b; info