Testing changes candidates for CAM5.4
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- List of changes
Robust changes, In progress, In developement
- Standalone simulations
Simulations in which we look at the proposed change for CAM5.4 one at a time
- Combined standalone simulations
First attempt to combine changes for CAM5.4
- CAM5.4: Standalone, AMIP and coupled
Standalone, AMIP and coupled runs with CAM5.4 (coupled runs includes some retunings to adjust the RESTOM)
- Sensitivity and tuning runs
Sensitivity to tuning parameters that could be used for CAM5.4
- Tracking differences in LWCF
There is a 1 W/m2 difference in LWCF between
- CAM5.4 in cam5_3_52 (this is where the changes for CAM5.4 were implemented and tested)
- CAM5.4 in cam5_3_67 (this is when the changes for CAM5.4 went on the trunk)
This is coming from the MG2 bugfix in cam5_3_57
- Change in mode width and dust
Change in the mode widths has a big impact on the dust.
The dust is retuned by changing the soil erodibility file.
- Tuning of CAM5.4 in coupled mode
We identified W11 as a good configuration for CAM5.4.
Tuning of this configuration in coupled mode.
- ENSO amplitude in CAM5.4
Simulations to figure out parameters responsible of the strong ENSO in CAM5.4
- Final configuration for CAM5.4
Coupled and AMIP simualtion for the final configuration of CAM5.4
List of changes
Robust changes
- New topography for fininite volume (see C2)
- Modifications to the dust (see C3d)
New file for dust erodability + fine mode from 3.2% to 1.1% (Albani et al., 2014) + new optical properties - MG2 microphysics (see C4 and C4b)
- New ice nucleation (see C5)
- 32-level model (see C6)
- MAM4 (see C7b)
- New energy formulation (C8)
- New remapping (C9)
Changes in testing
- Gravity wave code (testing)
- MAM mode width changes (to enable prognostic sulfur)
- Prognostic stratospheric volcanic sulfate
Still in development
- External forcings
CH4 oxidation source for H2O
OCS oxidation source for SO2 - CCMI inertial gravity waves (IGWs)
Currently the code related to the IGWs has a bug. It will be easily fixed, but will require re-tuning the model. - Convective gravity wave sources (tuning implications)
- Consistent TMS: same parameter settings and orography files (?)
- Convective transport and scavenging
Standalone Simulations
These simulations are simulations in which we look at the proposed change for CAM5.4 one at a time.
ID Casename Case Description Diagnostics Details/Comments C1 f.e13.F2000C5.f09_f09.cam5.3.50.control.001 Baseline run : Out-of-the-box from cam5.3.50
w/ obs
w/ cam5.3Timing:
Model Cost:
1135 pe-hrs/yr
Throughput:
10.83 yrs/day
C2 f.e13.F2000C5.f09_f09.cam5.3.50.topo.001 Same as C1
+ new topo
w/ obs
w/ C1C3 f.e13.F2000C5.f09_f09.cam5.3.50.dust_erod.001 Same as C1
+ new file for dust erodability
dst_source2x2tuned_cam5merra_30jul13.nc
w/ obs
w/ C1C3b f.e13.F2000C5.f09_f09.cam5.3.50.dust_erod.002 Same as C1
+ new file for dust for dust erodability
dst_source2x2tuned_cam5merra_30jul13.nc
+ fine mode from 3.2% to 1.1% (Albani et al., 2014)C3c f.e13.F2000C5.f09_f09.cam5.3.50.dust_erod.003 Same as C1
+ new file for dust for dust erodability
dst_source2x2tuned_cam5merra_30jul13.nc
+ fine mode from 3.2% to 1.1% (Albani et al., 2014)
+ new optical propertiesC3d f.e13.F2000C5.f09_f09.cam5.3.50.dust_erod.004 Same as C1
+ new file for dust for dust erodability
dst_source2x2tuned_cam5merra_30jul13.nc
+ fine mode from 3.2% to 1.1% (Albani et al., 2014)
+ new optical properties
C4 f.e13.F2000C5.f09_f09.cam5.3.51.mg2.001 Same as C1
+ MG2 microphysics
+ rhminl = 0.95
w/ obs
w/ C1Model Cost:
1270 pe-hrs/yrIncrease cost: 12%
C4b f.e13.F2000C5.f09_f09.cam5.3.51.mg2.001 Same as C1
+ MG2 microphysics
+ rhminl = 0.95
+micro_mg_num_steps = 4
w/ obs
w/ C1Model Cost:
1313 pe-hrs/yrIncrease cost: 16%
C5 f.e13.F2000C5.f09_f09.cam5.3.51.ice_nucleation.001 Same as C1
+ new ice nucleation
w/ obs
w/ C1Model Cost:
1212 pe-hrs/yr
Increase cost: 7%
C5b f.e13.F2000C5.f09_f09.cam5.3.51.ice_nucleation.002 Same as C1
+ new ice nucleation
+ "DHmax" = 400 microns (based on the Radar observations)
w/ obs
w/ C1
w/ C5C5c f.e13.F2000C5.f09_f09.cam5.3.51.ice_nucleation.005 Same as C1
+ new ice nucleation
+ "DHmax" = 400 microns (based on the Radar observations)
+ -cppdefs -DUSE_XLIU_MOD'w/ C5b C6 f.e13.F2000C5.f09_f09.cam5.3.50.L32.002 Same as C1
+ 32 vertical levels
w/ obs
w/ C1Model Cost
1180 pe-hrs/yr
Increase cost: 4%
C7 f.e13.F2000C5.f09_f09.cam5.3.50.mam4.001 Same as C1
+ MAM4
w/ obs
w/ C1Model Cost:
1257 pe-hrs/yr
Increase cost: 11%
C7b f.e13.F2000C5.f09_f09.cam5.3.50.mam4.002 Same as C1
+ MAM4
+ new optical properties
w/ obs
w/ C1C8 f.e11.FAMIPC5.f09_f09.cam5_3_52_new_energy.001 Same as C1 but AMIP
+ new energy formulation
w/ C1-AMIP C8b f.e11.FAMIPC5.ne30_ne30.cam5_3_52_new_energy.001 Same as C1 but AMIP
+ new energy formulation
+ Spectral element
w/ C1-AMIP C9 f.e13.F2000C5.f09_f09.cam5.3.50.remapping.001 Same as C1
+ new remapping
w/ C1 C10 f.e13.FC5.f09_f09.mjmc5367.004.modeopt MAM mode width changes (to enable prognostics sulfur)
w/ control C11 f.e13.c5370.FC5.f19_f19.test.01 making H2O prognostic in the chemistry
w/ control Combined standalone Simulations
This is the first attempt to combine changes for CAM5.4
ID Casename Case Description Diagnostics Details/Comments M1 f.e13.F2000C5.f09_f09.cam5.4_alpha02.001 Combined the changes
- New topography for fininite volume (see C2)
- Modifications to the dust (see C3d)
New file for dust erodability + fine mode from 3.2% to 1.1% (Albani et al., 2014) + new optical properties - MG2 microphysics (see C4 and C4b)
- New ice nucleation (see C5)
- MAM4 (see C7b)
- New energy formulation (C8)
- New remapping (C9)
M2 f.e13.F2000C5.f09_f09.cam5.4_alpha02.001_L32 Same as M1- 32-level model (see C6)
M3 f.e13.F2000C5.f09_f09.cam5.4_alpha02.001_L32 Same as M1- 32-level model (see C6)
CAM5.4
Standalone, AMIP and coupled runs with CAM5.4 (coupled runs includes some retunings to adjust the RESTOM)
ID Casename Case Description Diagnostics Details/Comments 2000_V1 f.e13.F2000C5.f09_f09_beta16.cam5.4_alpha02_b.003 Same as M2 (combined change)
+ rhminl_land = 0.01->0.
AMIP_V1 f.e13.FAMIPC5.f09_f09_beta16.cam5.4_alpha02_b.002 Same as M2 (combined change)
+ rhminl_land = 0.01->0.
COUPLED_V1 b.e13.B1850C5CN.f09_g16.beta16.cam5.4_alpha02_b.003 Same as M2 (combined change)
+ rhminl_land = 0.01->0.
+ dp1 = 0.1->0.05
Sensitivity tests and tuning runs
Sensitivity to tuning parameters that could be used for CAM5.4
ID Casename Case Description Diagnostics Details/Comments S1 f.e13.F2000C5.f09_f09.
cam5.4_alpha02.001_L32_rhminl_landrhminl_land = 0.01->0.
S2 f.e13.F2000C5.f09_f09.
cam5.3.51.ice_nucleation.002Same as Control
+ new ice nucleation
+ "DHmax" = 400 microns (based on the Radar observations)
w/ Control
S3 f.e13.F2000C5.f09_f09.
cam5.3.51.ice_nucleation.003Same as S2
+ "DHmax" = 350 microns (based on the Radar observations)
w/ S2
S4 f.e13.F2000C5.f09_f09.
cam5.3.51.ice_nucleation.004Same as S2
+ "DHmax" = 450 microns (based on the Radar observations)
w/ S2
S5 f.e13.F2000C5.f09_f09
_beta16.cam5.4_alpha02_b.004Same as control
+ c0_land
w/ Control S6 f.e13.F2000C5.f09_f09_
beta16.cam5.4_alpha02_b.005Same as control
+ dp1
w/ Control S7 f.e13.F2000C5.f09_f09_
beta16.cam5.4_alpha02_b.006Same as control
+ cu_det_st = .true.
w/ Control S8 b.e13.B1850C5CN.f09_g16_
beta17_cam5.4_alpha03.003Same as control
dp1= 0.1->0.05S9 b.e13.B1850C5CN.f09_g16_
beta17_cam5.4_alpha03.005Same as control
dcs = 150->300 microns
S10 b.e13.B1850C5CN.f09_g16_
beta17_cam5.4_alpha03.007Same as control
dcs = 150->300 microns
S11 b.e13.B1850C5CN.f09_g16_
beta17_cam5.4_alpha03.005Same as control
subgrid =1.->1.2
Tracking differences in LWCF
There is a 1 W/m2 difference in LWCF between
- CAM5.4 in cam5_3_52 (this is where the changes for CAM5.4 were implemented and tested)
- CAM5.4 in cam5_3_67 (this is when the changes for CAM5.4 went on the trunk)
I suspect this is coming from the MG2 bugfix in cam5_3_57 (Yes it is !!!)
ID Casename Case Description Diagnostics Details/Comments L1 f.e13.F2000C5.f09_f09_beta16.cam5.4_alpha02_b.003 cam5_3_52
L2 f.e13.F2000C5.f09_f09_beta16.cam5.4_mills01_cam5_3_70.002 cam5_3_70
L3 f.e13.F2000C5.f09_f09_cam5.4_cam5_3_66_energy_new_mods.001 cam5_3_67
L4 f.e13.F2000C5.f09_f09_cam5.4_cam5_3_57.001.001 cam5_3_57
L5 f.e13.F2000C5.f09_f09_cam5.4_cam5_3_56.001.002 cam5_3_56
L6 f.e13.F2000C5.f09_f09_cam5.4_cam5_3_52.001.001 cam5_3_52
Change in mode width
Change in the mode widths has a big impact on the dust.
The dust is retuned by changing the soil erodibility.ID Casename Case Description AMWG diag Aerosol diags W2 f.e13.F2000C5.f09_f09_beta16.
cam5.4_mills01_cam5_3_70.002Control W3 f.e13.F2000C5.f09_f09_beta16.
cam5.4_mills01_cam5_3_70.003Mode width changes w/ obs
w/ W2W4 f.e13.F2000C5.f09_f09_beta16.
cam5.4_mills01_cam5_3_70.004Mode width changes
modal_accum_coarse_exch=.true.
(exchange between accumulation and coarse modes
in the stratosphere).W5 f.e13.F2000C5.f09_f09_beta16.
cam5.4_mills01_cam5_3_70.005Same as W4
+ Tuning of the dust : new erodibility fileW6 f.e13.F2000C5.f09_f09_beta16.
cam5.4_mills01_cam5_3_70.006Same as W5
+ Bugfix from Mike MillsW8 f.e13.F2000C5.f09_f09_beta16.
cam5.4_mills01_cam5_3_70.008Same as W6
+ Mods for RHMAX
(same mods as in C5b)W9 f.e13.F2000C5.f09_f09_beta16.
cam5.4_mills01_cam5_3_70.009Same as W5
+ change in the sea-salt emission
emis_scale = 1.35->1W10 f.e13.F2000C5.f09_f09_beta16.
cam5.4_mills01_cam5_3_70.010Same as W6
+ Bugfix from Mike Mills
+ limit mode exchange to statrosphereW11 f.e13.F2000C5.f09_f09_beta16.
cam5.4_mills01_cam5_3_70.011Same as W10
+ emis_scale = 1.->0.9
+ Mods for RHMAX
and -cppdefs -DUSE_XLIU_MOD'
(same mods as in C5c)
+ new soil erodibilty file: dst_source2x2_cam5.4_c150327.nc
w/ w5 Tuning of W11 in coupled mode
We identified w11 as a good candidate for CAM5.4.
ID Casename Case Description AMWG diag Aerosol diags W11 f.e13.F2000C5.f09_f09_beta16.
cam5.4_mills01_cam5_3_70.011Same as W10
+ emis_scale = 1.->0.9
+ Mods for RHMAX
and -cppdefs -DUSE_XLIU_MOD'
(same mods as in C5c)
+ new soil erodibilty file: dst_source2x2_cam5.4_c150327.nc
w/ w5 X2 b.e13.B1850C5CN.f09_g16_
beta17_cam5.4_alpha03.002Same as W11
but in coupled mode
X3 b.e13.B1850C5CN.f09_g16_
beta17_cam5.4_alpha03.003Same as X2
dp1= 0.1->0.05
X4 b.e13.B1850C5CN.f09_g16_
beta17_cam5.4_alpha03.004Same as X3
dcs = 150->300 microns
dp1= 0.1->0.05
X5 b.e13.B1850C5CN.f09_g16_
beta17_cam5.4_alpha03.005Same as X2
dcs = 150->300 microns
X6 b.e13.B1850C5CN.f09_g16_
beta17_cam5.4_alpha03.006Same as X2
subgrid =1.->1.2
X7 b.e13.B1850C5CN.f09_g16_
beta17_cam5.4_alpha03.007Same as X6
dcs = 150->250 microns
ENSO amplitude in CAM5.4
Simulations to figure out parameters responsible of the strong ENSO in CAM5.4
ID Casename Case Description AMWG diag Aerosol diags X2 b.e13.B1850C5CN.f09_g16_
beta17_cam5.4_alpha03.002Same as W11
but in coupled mode
X6 b.e13.B1850C5CN.f09_g16_
beta17_cam5.4_alpha03.006Same as X2
subgrid =1.->1.2
X7 b.e13.B1850C5CN.f09_g16_
beta17_cam5.4_alpha03.007Same as X6
dcs = 150->250 microns
X8 b.e13.B1850C5CN.f09_g16_
beta17_cam5.4_alpha03.008Same as X7
+ use old topography
X9 b.e13.B1850C5CN.f09_g16_
beta17_cam5.4_alpha03.009Same as X7
+ dp1 = 0.05X10 b.e13.B1850C5CN.f09_g16_
beta17_cam5.4_alpha03.010Same as X7
+ dcs = 250-> 200 microns
+ co_lnd = 0.0059->0.045
X11 b.e13.B1850C5CN.f09_g16_
beta17_cam5.4_alpha03.011Same as X7
+ dcs = 250-> 200 microns
+ dp1 = 0.1->0.05
X12 b.e13.B1850C5CN.f09_g16_
beta17_cam5.4_alpha03.012Same as X7
+ dcs = 250-> 200 microns
+ co_lnd = 0.0059->0.0150
+ dp1 = 0.1->0.05
CAM5.4: Final configuration
We retained X7 for the final configuration of CAM5.4
ID Case Description Diagnostics Details/Comments f2000_cam5.4 CAM standalone with climatological SSTsw/ obs
w/ cam5.3 (5-year run)Not available f2000_pia_cam5.4 CAM standalone with climatological SSTs
+ preindustrial aerosolw/ f2000_cam5.4 Not available famip_cam5.4 AMIP run
+ COSP simulator (coming soon)
w/ obs (yrs 1980-2004)
w/ cam5.3 (yrs 1980-2004)
AMWG variability
CVPD packageb1850_cam5.4 Coupled run
Hybrid run started from large-ensemble at year 402
Atm timeseries
w/ obs
w/ X6
w/ LENS
Lnd w/ LENS and obs Ocn Obs: enso
Ice w/ LENS e1850_cam5.4_1xco2 Slab Ocean Model + 1xCO2 timeseries
w/ b1850_cam5.4Not available e1850_cam5.4_2xco2 Slab Ocean Model + 2xCO2 timeseries
w/ e1850_1xco2Not available