Observations
| Data | Analysis |
|---|---|
| Merged SST (HadiSST 1870-1981; NCEP OI2 1981-2008) | EOFs |
Fully-Coupled
1990, 20th Cent, 1850, Prediction
| Experiment | Description | Initialization | Diagnostics | |||
|---|---|---|---|---|---|---|
| Atmosphere | Ice | Land | Ocean | |||
| b40.1850.track1.1deg.006 | CCSM4 1850 control | atm diag | ice diag | lnd dig | ||
| b.e11.B1850C5CN.f09_g16.005 | Large-Ensemble 1850 control, cesm1_1,CAM5 FV0.9, POP gx1v6 |
atm diag | ice diag | lnd dig | ||
| b.e11.B1850C5CN.f19_g16.008 | Last Millennium 1850 control, cesm1_1,CAM5 FV1.9, POP gx1v6 |
atm diag | ice diag | lnd dig | ||
multi-case comparisons
Experiment |
Description |
Initialization |
Diagnostics |
|||
|---|---|---|---|---|---|---|
Atmosphere |
Ice |
Land |
Ocean |
|||
Large Ensemble simulations |
1 historical (1850-2005), 13 20thC (1920-2005), and 13 RCP8.5 simulations (2006-2080) cesm1_1,CAM5 0.9x1.25 (f09), POP gx1v6 |
Large Ensemble experiments information | atm diag |
ice diag |
lnd dig |
|
Last Millennium simulations |
2 controls (one 1850, one 850), 9 all forcing, 2 Greenhouse Gas, 2 Land Use Land Cover, 2 Orbital, 3 Solar Variability, 4 Volcanic simulations cesm1_1,CAM5 1.9x2.5deg grid (f19), POP gx1v6 |
Case Info. | atm diag |
ice diag |
lnd dig |
|
amoc experiments |
3 1-degree control runs (b.e11.B1850C5CN.f09_g16.005, amoc_lens_008, amoc_lens_009), 1 2-deg. atm, 1-deg. ocn. control run (b.e11.B1850C5CN.f19_g16.008) and 5 parameterization experiments (amoc_lens_001, amoc_lens_002, amoc_lens_003, amoc_lens_004, amoc_lens_006) |
Case Info. | atm diag |
ice diag |
lnd dig |
|
parameterization experiments
Experiment |
Description |
Initialization |
Diagnostics |
|||
|---|---|---|---|---|---|---|
Atmosphere |
Ice |
Land |
Ocean |
|||
amoc_lens_001 |
reduced background vertical mixing from 0.17 x 10-4 to 0.10 x 10-4 m^2/s |
Case Info. | atm diag |
lnd dig |
popdiag (yrs 902-1001): |
|
amoc_lens_002 |
reduced submesoscale length scale from 5 km to 3.33 km |
Case Info. | atm diag |
ice diag |
lnd dig |
popdiag (yrs 902-1001): |
amoc_lens_003 |
increased deep values of isopycnal and thickness diffusivities from 300 to 600 m^2/s |
Case Info. |
atm diag |
ice diag |
lnd dig |
popdiag (yrs 902-1001): |
amoc_lens_004 |
reduced horizontal viscosities from 600 to 300 m^2/s |
Case Info. |
atm diag |
ice diag |
lnd dig |
popdiag (yrs 902-1001): |
amoc_lens_005 |
new control |
Case Info. |
atm diag |
lnd dig |
popdiag (yrs 1002-1101): |
|
amoc_lens_006 |
reduced isopycnal and thickness diffusivities from 3000 to 2000 m^2/s |
Case Info. |
atm diag |
ice diag |
lnd dig |
popdiag (yrs 904-1003): |
amoc_lens_008 |
control run ensemble member (different atm. initial conditions) |
Case Info. |
atm diag |
ice diag |
lnd dig |
popdiag (yrs 902-1001): |
amoc_lens_009 |
control run ensemble member (different atm. initial conditions) |
Case Info. |
atm diag |
ice diag |
lnd dig |
popdiag (yrs 902-1001): |
Coupled Ocean-Ice
Hindcast experiments (version history for JRA55-do)
| Experiment | Description | Initialization | Diagnostics | |||
|---|---|---|---|---|---|---|
| Atm | Ice | Lnd | Ocean | |||
| g40.000 | cesm1_1_beta01, G, CORE-II (1948-2007), (see Danabasoglu et al 2013) |
Levitus/PHC | Atm | ice diag yrs 271-300 | Lnd |
|
g12b8.compo.5 |
cesm1_2_beta08, G, Compo (1948-2007) |
Levitus/PHC |
Atm |
Lnd |
||
g122.compo.7 |
cesm1_2_beta08, G, Compo (1948-2007) |
Levitus/PHC |
Atm |
Lnd |
||
g14.20CRv2c.sp30 |
cesm1_4_beta06, G , 20CRv2c (1871-1900) |
Levitus/PHC |
Atm |
Lnd |
||
| g14b6.20CRv2c.01 | cesm1_4_beta06, G, 20CRv2c (1958-2009) |
Levitus/PHC | Atm | ice diag yrs 236-260 | Lnd | |
g14b6.20CRv2c.02 |
cesm1_4_beta06, G , 20CRv2c (1901-2009) |
g14.20CRv2c.sp30 (yr 151) sfwf_weak_restore = 0.092 |
Atm |
Lnd |
||
g14b6.20CRv2c.03 |
cesm1_4_beta06, G , 20CRv2c (1901-2009) |
g14.20CRv2c.sp30 (yr 151) sfwf_weak_restore = 0.0115 |
Atm |
Lnd |
||
| g14b6.CORE2.01 | cesm1_4_beta06, G, CORE-II (1958-2009) | Levitus/PHC | Atm | Ice | Lnd | |
| g14b6.JRA55.01 | cesm1_4_beta06, G, JRA55v0.2 (1958-2009) | Levitus/PHC | Atm | Lnd | ||
| g14b6.JRA55.02 | cesm1_4_beta06, G, JRA55v0.3 (1958-2009) | Levitus/PHC | Atm | Lnd | ||
| g14b6.JRA55.03 | cesm1_4_beta06, G, JRA55v0.4 (1958-2009) | Levitus/PHC | Atm | ice diag yrs 001-260 |
Lnd | |
| g14b6.JRA55.04 | cesm1_4_beta06, G, JRA55v0.7 (1958-2009) | Levitus/PHC | Atm | Lnd | ||
| g14b6.JRA55.v11.C01 | cesm1_4_beta06, G, JRA55v1.1 (1958-2009) with 4-yr salinity restoring | Levitus/PHC | Atm | Ice |
Lnd |
|
| g14b6.JRA55.v11.C02 | cesm1_4_beta06, G, JRA55v1.1 (1958-2009) with 1-yr salinity restoring | Levitus/PHC | Atm | Lnd | ||
| g20b06.CORE2.C02 | cesm2_0_beta06, G, CORE-II (1958-2009) with 4-yr salinity restoring | Levitus/PHC | Atm | Lnd | ||
| g20b06.CORE2.C03 | cesm2_0_beta06, G, CORE-II (1958-2009) with 4-yr salinity restoring, no ocean current in flux computation | Levitus/PHC | Atm | Lnd | ||
| g20b06.JRA55.v13.T01 | cesm2_0_beta06, G, JRA55v1.3 (1958-2009) with 4-yr salinity restoring | Levitus/PHC | Atm | Ice |
Lnd | |
| g20b06.JRA55.v13.T02 | cesm2_0_beta06, G, JRA55v1.3 (1958-2009) with 4-yr salinity restoring, no ocean current in flux computation | Levitus/PHC | Atm | Lnd | ||
| g20b06.JRA55.v13.T04 | cesm2_0_beta06, G, JRA55v1.3 (1958-2009) with 2-yr salinity restoring, 50% enhanced ice-ocean drag, & no ocean currents in flux computation for the open ocean | Levitus/PHC | Atm | Lnd | popdiag (ts, vs obs, vs CORE2.C02) |
|
| g20b06.JRA55.v13.S07 | cesm2_0_beta06, G, JRA55v1.3 (1958-2009) with 1-yr salinity restoring | Levitus/PHC | Atm | Lnd | popdiag (ts, vs obs, vs CORE2.C02) |
|
| g20b06.CORE2.C04 | cesm2_0_beta06, G, CORE-II (1958-2009) with 2-yr salinity restoring, 50% enhanced ice-ocean drag, & no ocean currents in flux computation for the open ocean | Levitus/PHC | Atm | Lnd | ||
Semi-prognostic method experiments
| Experiment | Description | Initialization | Diagnostics | |||
|---|---|---|---|---|---|---|
| Atmosphere | Ice | Land | Ocean | |||
| g12b8.103 | branched from 0293-01-01 of g40.103 | Atm | ice diag yrs 308-312 | Lnd |
|
|
g12b8.103.1 |
branched from 0293-01-01 of g40.103 |
Atm |
Lnd |
|||
g12b8.103.2 |
branched from 0293-01-01 of g40.103 |
Atm |
Lnd |
|||
g12b8.103.3 |
branched from 0293-01-01 of g40.103 |
Atm |
Lnd |
|||
g12b8.103.4 |
branched from 0293-01-01 of g40.103 |
Atm |
Lnd |
|||
g12b8.103.5 |
branched from 0293-01-01 of g40.103 |
Atm |
Lnd |
|||
g12b8.103.6 |
branched from 0293-01-01 of g40.103 |
Atm |
Lnd |
|||
AMV Experiments
AMV ensemble experiments (SST anomalies are imposed over the entire North Atlantic)
- AMV pattern (North Atlantic, Global)
- Restoring mask (map)
| Experiment | Description | Initialization | Diagnostics | |||
|---|---|---|---|---|---|---|
| Atmosphere | Ice | Land | Ocean | |||
| REF | Large-Ensemble 1850 control, |
LENS 1850 control | Atm | Ice |
Lnd | Oce |
| AMV+ | Large-Ensemble 1850 control, |
LENS 1850 control | Atm | Ice |
Lnd | Oce |
| AMV- | Large-Ensemble 1850 control, |
LENS 1850 control | Atm | Ice |
Lnd | Oce |
AMV ensemble experiments (SST anomalies are imposed over the northern North Atlantic only)
- AMV pattern (North Atlantic, Global)
- Restoring mask (map)
| Experiment | Description | Initialization | Diagnostics | |||
|---|---|---|---|---|---|---|
| Atmosphere | Ice | Land | Ocean | |||
| REF | Large-Ensemble 1850 control, |
LENS 1850 control | Atm | Ice |
Lnd | Oce |
| AMV+ | Large-Ensemble 1850 control, |
LENS 1850 control | Atm | Ice |
Lnd | Oce |
| 3xAMV+ | Large-Ensemble 1850 control, |
LENS 1850 control | Atm | Ice |
Lnd | Oce |
AMV ensemble experiments (SST anomalies are imposed over the tropical North Atlantic only)
- AMV pattern (North Atlantic, Global)
- Restoring mask (map)
| Experiment | Description | Initialization | Diagnostics | |||
|---|---|---|---|---|---|---|
| Atmosphere | Ice | Land | Ocean | |||
| REF | Large-Ensemble 1850 control, |
LENS 1850 control | Atm | Ice |
Lnd | Oce |
| AMV+ | Large-Ensemble 1850 control, |
LENS 1850 control | Atm | Ice |
Lnd | Oce |
Flow Field Correction Experiments
implements the semi-prognostic method for adjusting the hydrostatic equation to correct for systematic error
(see Greatbatch et al., 2004)
| Experiment | Description | Initialization | Diagnostics | |||
|---|---|---|---|---|---|---|
| Atmosphere | Ice | Land | Ocean | |||
g12b8.103 |
cesm1_2_beta08, G case. CTR simulation |
branched from 0293-01-01 of g40.103 |
Atm | Ice |
Lnd | Oce |
g12b8.103.3 |
cesm1_2_beta08, G case. identical to g12b8.103 but implements semi-prognostic correction (alpha = 0.5, applied full depth in NATL (>15N)) |
branched from 0293-01-01 of g40.103 |
Atm | Ice |
Lnd | Oce |
g12b8.103.5 |
cesm1_2_beta08, G case. identical to g12b8.103 but implements semi-prognostic correction (alpha = 0.8, applied in NATL (>15N), only above 830m and excluding points within 2 grid points of land) |
branched from 0293-01-01 of g40.103 |
Atm | Ice |
Lnd | Oce |
NATL_FFC_alpha-1.0
|
cesm1_2_beta08, G case. identical to g12b8.103 but implements semi-prognostic correction (alpha = 1.0, applied in NATL (between 15N and 65N), only above 830m and excluding points within 1 grid points of land) |
branched from 0293-01-01 of g40.103 |
Atm | Ice |
Lnd | Oce |
NATL_FFC_alpha-1.0.2
|
cesm1_2_beta08, G case. identical to g12b8.103 but implements semi-prognostic correction (alpha = 1.0, applied in NATL (between 15N and 65N), only above 830m) |
branched from 0293-01-01 of g40.103 |
Atm | Ice |
Lnd | Oce |
NATL_FFC_alpha-1.0.3
|
cesm1_2_beta08, G case. identical to g12b8.103 but implements semi-prognostic correction (alpha = 1.0, applied in NATL (between 15N and 65N), only above 830m and excluding points within 2 grid points of land) |
branched from 0293-01-01 of g40.103 |
Atm | Ice |
Lnd | Oce |
NATL_FFC_alpha-0.8
|
cesm1_2_beta08, G case. identical to g12b8.103 but implements semi-prognostic correction (alpha = 0.8, applied in NATL (between 15N and 65N), over full-depth and excluding points within 2 grid points of land) |
branched from 0293-01-01 of g40.103 |
Atm | Ice |
Lnd | Oce |
NATL_FFC_NI_alpha-1.0
|
cesm1_2_beta08, G case. identical to g12b8.103 but implements non-interactive semi-prognostic correction Correction term was diagnose from experiment NATL_FFC_alpha-1.0.3 (alpha = 1.0, applied in NATL (between 15N and 65N), only above 830m and excluding points within 2 grid points of land) |
branched from 0293-01-01 of g40.103 |
Atm | Ice |
Lnd | Oce |
NATL_FFC+tropic_REF |
cesm1_2_beta08, G case. startup simulation |
startup simulation |
Atm | Ice |
Lnd | Oce |
NATL_FFC+tropic_10 |
cesm1_2_beta08, G case. startup simulation with SSH correction (5-day timescale) |
startup simulation |
Atm | Ice |
Lnd | Oce |
NATL_FFC+tropic_11 |
cesm1_2_beta08, G case. startup simulation with SSH correction and semi-prognostic correction (5-day timescale and alpha = 1.0, applied in NATL (between 15N and 65N), only above 830m and excluding points within 2 grid points of land) |
startup simulation |
Atm | Ice |
Lnd | Oce |
NATL_FFC+tropic_12 |
cesm1_2_beta08, G case. startup simulation with semi-prognostic correction (alpha = 1.0, applied in NATL (between 15N and 65N), only above 830m and excluding points within 2 grid points of land) |
startup simulation |
Atm | Ice |
Lnd | Oce |
NATL_FFC+tropic_13 |
cesm1_2_beta08, G case. startup simulation with SSH correction and semi-prognostic correction (1-day timescale and alpha = 1.0, applied in NATL (between 15N and 65N), only above 830m and excluding points within 2 grid points of land) |
startup simulation |
Atm | Ice |
Lnd | Oce |
NATL_FFC+tropic_14 |
cesm1_2_beta08, G case. startup simulation with SSH (filtered) correction and semi-prognostic correction (5-day timescale and alpha = 1.0, applied in NATL (between 15N and 65N), only above 830m and excluding points within 2 grid points of land) |
startup simulation |
Atm | Ice |
Lnd | Oce |
NATL_FFC+tropic_15 |
cesm1_2_beta08, G case. startup simulation with SSH (filtered) correction and semi-prognostic correction (5-day timescale excluding points within 2 grid points of land and alpha = 1.0, applied in NATL (between 15N and 65N), only above 830m and excluding points within 2 grid points of land) |
startup simulation |
Atm | Ice |
Lnd | Oce |
NATL_FFC+tropic_16 |
cesm1_2_beta08, G case. startup simulation with SSH (filtered) correction and semi-prognostic correction (5-day timescale excluding points within 2 grid points of land and alpha = 1.0, applied in NATL (between 15N and 65N), only above 830m and excluding points within 2 grid points of land) |
startup simulation |
Atm | Ice |
Lnd | Oce |
NATL_FFC+tropic_REF |
cesm1_2_beta08, G case. REF startup simulation. |
startup simulation |
Atm | Ice |
Lnd | Oce |
NATL_FFC+tropic_17 |
cesm1_2_beta08, G case. startup simulation with SSH (filtered) correction and semi-prognostic correction (5-day timescale excluding points within 2 grid points of land and the GOM and alpha = 1.0, applied in NATL (between 15N and 65N), only above 830m and excluding points within 2 grid points of land) |
startup simulation |
Atm | Ice |
Lnd | Oce |
NATL_FFC_NI_4 |
cesm1_2_beta08, G case. startup simulation with non-interactive semi-prognostic correction to hydrostatic eqn (dp/dz) and SSH (filtered) correction Correction term was diagnose from experiment NATL_FFC+tropic_17 (5-day timescale (excluding points within 2 grid points of land and GOM) and alpha = 1, applied in N. Atlantic (between 15N and 65N), only above 830m and excluding
|
branched from 0293-01-01 of g40.103 |
Atm | Ice |
Lnd | Oce |
g12b8.103 |
cesm1_2_beta08, G case. CTR simulation |
branched from 0293-01-01 of g40.103 |
Atm | Ice |
Lnd | Oce |
b.e11.B1850C5CN.f09_g16.005 |
cesm1_1_2_LENS, G case.
|
LENS PI control |
Atm | Lnd | Oce | |
B1850C5CN_NATL_FFC_2
|
cesm1_1_2_LENS, B case. identical to b.e11.B1850C5CN.f09_g16.005 but implements semi-prognostic correction (alpha = 1.0, applied in NATL (between 15N and 65N), only above 830m and excluding points within 2 grid points of land and the GOM). |
branched from 0402-01-01 of b.e11.B1850C5CN.f09_g16.005 |
Atm | Lnd | Oce | |
B1850C5CN_NATL_FFC_3
|
cesm1_1_2_LENS, B case. identical to b.e11.B1850C5CN.f09_g16.005 but implements semi-prognostic correction (alpha = 1.0, applied in NATL (between 15N and 65N), only above 830m and excluding points within 2 grid points of land and the GOM). Sea ice change: dt_mlt_in = 1.5 (1.00), r_snw = 1.5 (1.75), rsnw_melt_in = 1500 (1000). |
branched from 0402-01-01 of b.e11.B1850C5CN.f09_g16.005 |
Atm | Lnd | Oce | |
B1850C5CN_NATL_FFC_4
|
cesm1_1_2_LENS, B case. identical to b.e11.B1850C5CN.f09_g16.005 but implements SSH (filtered) correction and semi-prognostic correction (5-day timescale excluding points within 2 grid points of land and the GOM and alpha = 1.0, applied in NATL (between 15N and 65N), only above 830m and excluding points within 2 grid points of land) Sea ice change: dt_mlt_in = 1.5 (1.00), r_snw = 1.5 (1.75), rsnw_melt_in = 1500 (1000). |
branched from 0402-01-01 of b.e11.B1850C5CN.f09_g16.005 |
Atm | Lnd | Oce | |
B1850C5CN_NATL_FFC_5
|
cesm1_1_2_LENS, B case. identical to b.e11.B1850C5CN.f09_g16.005 but with non-interactive semi-prognostic correction to hydrostatic eqn (dp/dz) correction Correction term was diagnose from experiment B1850C5CN_NATL_FFC_3 (5-day timescale excluding points within 2 grid points of land and the GOM and alpha = 1.0, applied in NATL (between 15N and 65N), only above 830m and excluding points within 2 grid points of land) Sea ice change: dt_mlt_in = 1.5 (1.00), r_snw = 1.5 (1.75), rsnw_melt_in = 1500 (1000). |
branched from 0442-01-01 of B1850C5CN_NATL_FFC_3 |
Atm | Lnd | Oce | |
B1850C5CN_NATL_FFC_6
|
cesm1_1_2_LENS, B case. identical to b.e11.B1850C5CN.f09_g16.005 but with non-interactive semi-prognostic correction to hydrostatic eqn (dp/dz) correction Correction term was diagnose from experiment B1850C5CN_NATL_FFC_3 (5-day timescale excluding points within 2 grid points of land and the GOM and alpha = 1.0, applied in NATL (between 15N and 65N), only above 830m and excluding points within 2 grid points of land) Sea ice change: dt_mlt_in = 1.5 (1.00), r_snw = 1.0 (1.75), rsnw_melt_in = 2000 (1000), r_ice = -0.5 (0.0). |
branched from 0482-01-01 of B1850C5CN_NATL_FFC_5 |
Atm | Lnd | Oce | |