Climate Variability & Change
Working Group CVCWG

CCSM3 and earlier CVWG Simulations

Most of the simulations described on this page are only available directly off of NCAR machines. If you do not have NCAR/CISL machine access you can request data for a specific run by emailing the liasons listed on the CVCWG homepage.

CAM3 ARCOGA

5 member ensemble forced by climatological SSTs (90S-40N) and time-varying SST/Ice (40N-90N) where the ice coverage data exceeds 10% of the absolute difference between monthly and climatological values, with no radiative forcing; otherwise, climatological values are used. These experiments only specify time-varying SST/Ice for the cell/cells (north of 40N) which at some point in the whole time domain had some ice present. If ice was never present in the whole time domain at a particular grid cell, climatological SST would have been specified. The motivation of the experiment design was to test the impact of changes in ice and their associated changes in SST.
Simulation names: eul64x128_d70vamip_arcsst_0{1-5}
CESM Tag / Resolution: cam2_0_2_dev70(=CAM3) / T42
Data Availability: Selected monthly atmospheric variables.
Data Location: NCAR/CISL: /glade/campaign/cgd/cas/asphilli/CAM3_ARCGOGA_T42

CCSM3 sres-a1b Large Ensemble

A 40 member ensemble of CCSM3.0 integrations for the period 2000-2061 under the SRES A1B scenario has been completed by the CCSM Climate Variability and Climate Change Working Groups. Initial conditions for all model components except the atmosphere are identical for each ensemble member, and are taken as the January 1, 2000 state as simulated in a Climate of the 20th Century (20C3M) integration produced by the same coupled model. The initial atmospheric state is different for each ensemble member and corresponds to one of the states between December 1, 1999 and January 15, 2000 generated in the 20C3M experiment. These simulations are available to all users once they have registered with the Earth System Grid.

The ensemble is designed to provide a dataset for studies of how various statistical properties of the climate system may change in reaction to changing climate forcing. The ensemble's large size makes it possible to investigate properties that can only be accurately estimated with a large number of samples and should allow study of the evolution of these properties with unusually fine temporal resolution. The experimental design also enables investigation of predictability properties of the climate system on decadal time scales as well as studies of signal-to-noise emergence.
Graphical summary of simulations
Simulation names: b30.075-{01-40}
CESM Tag / Resolution: ccsm3_0_1_beta24 / T42
Data Availability: Limited monthly atmospheric variables (PRECC, PRECL, PSL, TREFHT and TS)
Data Location: NCAR/CISL: /glade/campaign/cgd/cas/asphilli/CCSM3-lgens

CAM3 RadATM T85 Ensemble

5 member ensemble forced by climatological SSTs and time-varying (1950-2000) volcanic, greenhouse gas, aerosol and solar forcings used in the CCSM3 "Climate of the 20th century" integrations.
Simulation names: eul128x256_d70sstcl_iforc_0{1-5}
CESM Tag / Resolution: cam2_0_2_dev70 (=CAM3) / T85
Data Availability: Selected monthly atmospheric variables.
Data Location: NCAR/CISL: /glade/campaign/cgd/cas/asphilli/CAM3_RADATM_T85

CAM3 RadATM T42 Ensemble

5 member ensemble forced by climatological SSTs and time-varying (1950-2008) volcanic, greenhouse gas, aerosol and solar forcings used in the CCSM3 "Climate of the 20th century" integrations.
Simulation names: eul64x128_d70sstcl_iforc_0{1-5} / eul64x128_d70sstcl_iforc_0{1-5}
CESM Tag / Resolution: cam2_0_2_dev70 (=CAM3) / T42
Data Availability: Selected monthly atmospheric variables.
Data Location: NCAR/CISL: /glade/campaign/cgd/cas/asphilli/CAM3_RADATM_T42

CAM3 T85 U.S. CLIVAR Drought Working Group Simulations

CAM3 T85 TOGA 1871-1949

5 member T85 TOGA (Tropical Ocean Global Atmosphere) ensemble forced by tropical (20N-20S) observed time-varying SSTs from January 1871 through December 1949. Climatological seasonal cycle of SSTs used polewards of 30°, with linear interpolation between 20° and 30°.
Simulation names: eul128x256_d63vamip_toga_0{1-5}
CESM Tag / Resolution: cam2_0_2_dev63 (=CAM3) / T85
Data Availability: Selected monthly atmospheric variables.
Data Location: NCAR/CISL: /glade/campaign/cgd/cas/asphilli/CAM3_TOGA_T85_1871

CAM3 T85 TOGA

5 member T85 TOGA (Tropical Ocean Global Atmosphere) ensemble forced by tropical (20N-20S) observed time-varying SSTs from January 1950 through December 2009. Climatological seasonal cycle of SSTs used polewards of 30°, with linear interpolation between 20° and 30°.
Simulation names: eul128x256_d63vamip_trpsst_0{1-5}
CESM Tag / Resolution: cam2_0_2_dev63 (=CAM3) / T85
Data Availability: Selected monthly atmospheric variables.
Data Location: NCAR/CISL: /glade/campaign/cgd/cas/asphilli/CAM3_TOGA_T85

CAM3 T42 TOGA

5 member T42 TOGA (Tropical Ocean Global Atmosphere) ensemble forced by tropical (20N-20S) observed time-varying SSTs from January 1950 through December 2009. Climatological seasonal cycle of SSTs used polewards of 30°, with linear interpolation between 20° and 30°.
Simulation names: eul128x256_d63vamip_trpsst_0{1-5}
CESM Tag / Resolution: cam2_0_2_dev70 (=CAM3) / T42
Data Availability: Selected monthly atmospheric variables.
Data Location: NCAR/CISL: /glade/campaign/cgd/cas/asphilli/CAM3_TOGA_T42

CAM3 T85 GOGA

5 member T85 GOGA (Global Ocean Global Atmosphere) ensemble forced by observed time-varying SSTs from January 1950 through December 2009.
Simulation names: eul128x256_d63vamip.ES0{1-5} (or vamip.ES0{1-5}) / eul128x256_d63vamip_0{1-5}b
CESM Tag / Resolution: cam2_0_2_dev63 (=CAM3) / T85
Data Availability: Selected monthly atmospheric variables.
Data Location: NCAR/CISL: /glade/campaign/cgd/cas/asphilli/CAM3_GOGA_T85

CAM3 T42 GOGA

5 member T42 GOGA (Global Ocean Global Atmosphere) ensemble forced by observed time-varying SSTs from January 1950 through December 2009.
Simulation names: eul64x128_d63vamip.0{1-5} (or vamip.0{1-5}) / eul64x128_d63vamip_0{1-5}b
CESM Tag / Resolution: cam2_0_2_dev63 (=CAM3) / T42
Data Availability: Selected monthly atmospheric variables.
Data Location: NCAR/CISL: /glade/campaign/cgd/cas/asphilli/CAM3_GOGA_T42

CAM3 T85 IPCC-GOGA

5 member T85 GOGA (Global Ocean Global Atmosphere) ensemble forced by global observed time-varying SSTs from January 1950 through December 2008 plus volcanic, greenhouse gas, aerosol and solar forcings used in the CCSM3 "Climate of the 20th century" integrations.
Simulation names: eul128x256_d70iamip.ES0{1-5} (or iamip.ES0{1-5}) / eul128x256_d70iamip_0{1-5}b
CESM Tag / Resolution: cam2_0_2_dev70 (=CAM3) / T85
Data Availability: Selected monthly atmospheric variables.
Data Location: NCAR/CISL: /glade/campaign/cgd/cas/asphilli/CAM3_IPCC_GOGA_T85

CAM3 T42 IPCC-GOGA

5 member T42 GOGA (Global Ocean Global Atmosphere) ensemble forced by global observed time-varying SSTs from January 1950 through December 2008 plus volcanic, greenhouse gas, aerosol and solar forcings used in the CCSM3 "Climate of the 20th century" integrations.
Simulation names: eul64x128_d63iamip.0{1-5} (or iamip.0{1-5}) / eul64x128_d63iamip_0{1-5}b
CESM Tag / Resolution: cam2_0_2_dev63 (=CAM3) / T42
Data Availability: Selected monthly atmospheric variables.
Data Location: NCAR/CISL: /glade/campaign/cgd/cas/asphilli/CAM3_IPCC_GOGA_T42

CAM2 T42 GOGA

15 member GOGA (Global Ocean Global Atmosphere) ensemble forced by global observed time-varying SSTs from Feburary 1949 through November 2001.
Simulation names: newsstamip{21-34,36}
CESM Tag / Resolution: cam2_0_1_brnchT_release3 (=CAM2) / T42
Data Availability: Ensemble means of limited monthly atmospheric variables.
Data Location: NCAR/CISL: /glade/campaign/cgd/cas/asphilli/CAM2_GOGA

CAM3 T85 Control

T85 control run forced by observed SST (climatological seasonal cycle). 100 years (0000-01 -> 0099-12).
Simulation name: sstclimt85_run01
CESM Tag / Resolution: cam2_0_2_dev70 (=CAM3)
Data Availability: Selected monthly atmospheric variables.
Data Location: /glade/campaign/cgd/cas/asphilli/CAM3_Control_T85

CAM3 T42 Control

T42 control run forced by observed SST (climatological seasonal cycle). 200 years (0000-01 -> 0199-12).
Simulation name: sstclimt42_run01
CESM Tag / Resolution: cam2_0_2_dev70 (=CAM3)
Data Availability: Selected monthly atmospheric variables.
Data Location: /glade/campaign/cgd/cas/asphilli/CAM3_Control_T42

CCSM3 T85 Control

T85 CCSM3 Control run, 700 years (0000-01 -> 0699-12), fully coupled.
Simulation names: b30.009
CESM Tag / Resolution: ccsm3_0_beta08 / T85
Data Availability: Selected monthly atmospheric variables, and limited ice, land and ocean variables.
Data Location: /glade/campaign/cgd/cas/asphilli/CCSM3_Control_T85

CCSM3 T42 Control

T42 CCSM3 Control run, 700 years (0100-01 -> 0999-12), fully coupled.
Simulation names: b30.004
CESM Tag / Resolution: ccsm3_0_beta09 / T42
Data Availability: Selected monthly atmospheric variables and limited ocean variables.
Data Location: /glade/campaign/cgd/cas/asphilli/CCSM3_Control_T42

We kindly ask that you acknowledge the CVCWG when presenting results based on these simulations in either oral and written form.