HiGEM

Internal Internal
Model
Repository Identifier: BADC
Scheme Identifier: NMM_UMv6.1
Local Identifier: xbpjt (HiGEM control)
Information
Local Name HiGEM
Long Name HiGEM control (xbpjt)
Description This is a description of the original HiGEM control started in March 2006
Change History:
Change:
Date:
Reason For Change:
Contacts:
Name: Charlotte Pascoe
Organisation: British Atmospheric Data Centre
Position: Atmospheric Scientist
Responsibility: Information Management
Tel: +44 (0)1235 445869
Fax: +44 (0)1234 445848
Address: RAL, Chilton
DidcotOxon
OX14 4LQUK
Email: c.l.pascoe@rl.ac.uk
References:
Reference:
Resource Constraints(s): None
Descriptive Keywords: control
Browse Graphics:
File Path/Name File Description File Format File Date
UM Atmosphere HIGEM-control
Parent Codebase
Repository Identifier: BADC
Scheme Identifier: NMM_UMUIv6
Local Identifier: NMMCodebase_UMUIv6
Parent Component
Repository Identifier: BADC
Scheme Identifier: NMM_UM_Atmos_v6.1
Local Identifier: UM Atmosphere HIGEM-control
Technical Properties
Machine login.hpcx.ac.uk
Description A Supercomputer
Compiler F90
Version v 1.2
Description
Options
Optimization no optimization
Libraries
Date Compiled 2006-06-06
Change History:
Change:
Date:
Reason For Change:
Environment Variables
Name: UMDIR
Value: /hpcx/home/n02/n02/umx
Name: HIGEM_ANCIL_AERO
Value: ~mjw/um/ancils
Name: HIGEM_ANCIL_093
Value: ~lcs/um/vn6.1/ancil/atmos/higem_vn0.9.3
Name:
Value:
Code Parallelisation
Processors Used: 256
Halo Size: 4
Numerical Properties
Horizontal Representation
Vertical Representation
Time Integration
Science Properties
Standard Name horizontal
Local Name Global Model
Definition Atmos Resolution and Domain: Horizontal. Global Model
Modified From Standard?
Reason for Modification:
References:
Parameters
Parameter Value
Number of Columns (X-Direction> 288
Number of Rows (Y-Direction) 217
Number of Land Points 24125
Halo size for EW boundaries of PEs 4
Halo size for NS boundaries of PEs 4
Do you require bit reproducible results whatever size the extended haloes are set to? OFF
Standard Name vertical
Local Name Vertical Resolution
Definition Atmos Resolution and Domain: Vertical
Modified From Standard?
Reason for Modification:
References:
Parameters
Parameter Value
Number of Levels 38
Number of wet levels 38
Number of Ozone levels 38
Linear vertical interpolation ON
Number of boundary layer levels 12
Number of deep soil levels (excluding surface) 4
Number of cloud levels used in radiation 38
User defined set ON
Directory /hpcx/home/n02/n02/umx/vn6.1/ctldata/vert
File name vertlevs_G3
Soil Level 1 0.10
Soil Level 2 0.25
Soil Level 3 0.65
Soil Level 4 2.00
Standard Name time stepping
Local Name timestepping
Definition Scientific Parameters and Sections: Time Stepping.
Modified From Standard?
Reason for Modification:
References:
Parameters
Parameter Value
Number of timesteps per 'period' 72
Number of days per 'period' 1
Convection calling frequency (timesteps) 2
Number of calculations of SW radiation increments per day 8
Number of calculations of LW radiation increments per day 8
Standard Name level by level constants
Local Name level by level constants
Definition Scientific Parameters and Sections: Level by Level Constants
Modified From Standard?
Reason for Modification:
References:
Parameters
Parameter Value
start level, end level, forecast 1, 38, 0.00e+00
start level, end level, ratio 1, 1, 0.950
start level, end level, ratio 2, 2, 0.925
start level, end level, ratio 3, 6, 0.900
start level, end level, ratio 7, 9, 0.850
start level, end level, ratio 10, 38, 0.800
Standard Name general physics
Local Name General Physics
Definition Scientific Parameters and Sections: General Physics Constants
Modified From Standard?
Reason for Modification:
References:
Parameters
Parameter Value
Number of boundary layer levels 12
Number of deep soil temperaure levels (excluding surface) 4
Number of cloud levels used in radiation 38
Ozone is held as zonal average values ON
2B, including calculation of saturated mixing ratio (QSAT) ON
Simple method with fixed value ON
CO2 Mass Mixing Ratio for whole run (kg/kg) 5.24100e-04
Standard Name radiation - shortwave
Local Name A01_3A
Definition Section 1: SW Radiation: General 2-stream radiation code
Modified From Standard?
Reason for Modification:
References:
Reference: JM Edwards, Slingo A, 1996: Studies with a flexible new radiation code .1. Choosing a configuration for a large-scale model QUARTERLY JOURNAL OF THE ROYAL METEOROLOGICAL SOCIETY, 122(531) 689-719
Reference: JA. CURRY, SCHRAMM JL, EBERT EE. 1995: SEA-ICE ALBEDO CLIMATE FEEDBACK MECHANISM JOURNAL OF CLIMATE 8 (2): 240-247
Parameters
Parameter Value
Including cloud micro-physics ON
Number of segments 4
Number of times per day to calculate increments 8
Number of bands 6
Include dependence of sea-ice albedo on snow depth ON
Albedo of snow free sea-ice 0.61
Albedo of melting deep snow on sea-ice 0.65
Albedo of cold deep snow on sea-ice 0.80
temperature range over which the snow albedo varies 2.00
Include the equation of time in the astronomy ON
Forcing
Standard Name 2-stream SW radiation
Local Name A01_3A_2Stream
Definition Section1: SW Radiation: General 2-stream radiation code: Define mode
Modified From Standard?
Reason for Modification:
References:
Parameters
Parameter Value
Directory /hpcx/home/n02/n02/umx/vn6.1/ctldata/spectral
File spec3a_sw_hadgem1_3
Select 2-stream option PIFM80
Select treatment of overlapping for gaseous absorption Equivalent extinction
Include absorption by oxygen ON
Specify mass mixing ration of oxygen 0.2314
Include climatological aerosol distribution ON
Distribute the boundary layer aerosol vertically using the boundary layer depth OFF
Select option for overlapping clouds MRO and Vertically Coherent Convective Cloud
Select representation of clouds Segregated mixed-phase clouds
Partition convective cloud using the local temperature? ON
Type number for water droplet in stratiform clouds 5
Type number for water droplet in convective clouds 5
Type number for ice crystals in stratiform clouds 8
Type number for ice crystals in convective clouds 8
Including spectral land-surface albedos and prognostic snow albedo OFF
Forcing
Standard Name radiation - longwave
Local Name A02_3A
Definition Section 2: LW Radiation: General 2-stream long wave radiation code
Modified From Standard?
Reason for Modification:
References:
Parameters
Parameter Value
Number of segments 4
Number of times per day to calculate increments 8
Number of bands 9
Forcing
Standard Name 2-stream LW radiation
Local Name A02_3A_2Stream
Definition Section 2: LW Radiation: General 2-stream long wave radiation code: Define mode
Modified From Standard?
Reason for Modification:
References:
Parameters
Parameter Value
Directory /hpcx/home/n02/n02/umx/vn6.1/ctldata/spectral
File spec3a_lw_hadgem1_3
Select 2-stream option PIF85 with D=1.66
Select treatment of overlapping for gaseous absorption Equivalent extinction
Include climatological aerosol distribution ON
Select option for overlapping clouds MRO and VCCC
Select representation of clouds Segregated mixed-phase clouds
Partition convective cloud using the local temperature? ON
Type number for water droplet in stratiform clouds 5
Type number for water droplet in convective clouds 5
Type number for ice crystals in stratiform clouds 8
Type number for ice crystals in convective clouds 8
Using Microphysics in the longwave ON
Enter treatment of scattering Approximate
Choose option for variation of source function across layers Quadratic
Number of columns to be sub-sampled by the ISCCP simulator ON
only required for diagnostics 2269-2277 25
Define specification of methane absorption Included. Use constant value
Specify mass mixing ratio of Methane 9.139e-07
Define specification of Nitrous Oxide absorption Included. Use constant value
Specify mass mixing ratio of Nitrous Oxide 4.665e-07
Define specification of CFC11 absorption Included. Use a constant value
Specify mass mixing ratio of CFC11 1.053e-09
Define specification of CFC12 absorption Included. Use a constant value
Specify mass mixing ratio of CFC12 1.595e-09
Define specification of CFC13 absorption Excluded
Define specification of HCFC22 absorption Excluded
Define specification of HCFC125 absorption Excluded
Define specification of HCFC134A absorption Excluded
Forcing
Standard Name boundary layer
Local Name A03_8B
Definition Section 3: Boundary Layer: As 6b but MOSES-II
Modified From Standard?
Reason for Modification:
References:
Reference: Lock, A. P. 2001: The numerical representation of entrainment in parametrizations of boundary layer turbulent mixing. MWR, 129, 1148-1163
Reference: Lock, A. P., A. R. Brown, M. R. Bush, G. M. Martin, R. N. B. Smith et al. 2000: A new boundary layer mixing scheme. Part I: scheme description and SCM tests MWR, 128, 3187-3199
Parameters
Parameter Value
Richardson number based mixing scheme ON
Using shear-dominated boundary layer fix ON
Using orographic roughness fields ON
Input ranges of levels and specify ratios 12
level 1 to level 1 2.00e+00
level 2 to level 12 1.50e+00
Select number of land surface tiles 9
Using coastal tiling ON
Radiative coupling and thermal capacity ON
Number of deep soil temperature levels (excluding surface) 4
Forcing
Standard Name large scale precipitation
Local Name A04_3C
Definition Section 4: Large Scale Precipitation: Improved Mixed Phase Precipitation scheme
Modified From Standard?
Reason for Modification:
References:
Parameters
Parameter Value
Use bias-removal scheme in autoconversion parametrisation ON
Forcing
Standard Name convection
Local Name A05_4A
Definition Section 5: Convection: Previously known as CMODS. Built on the basic 3C scheme but with major differences in science
Modified From Standard?
Reason for Modification:
References:
Parameters
Parameter Value
Number of segments 4
Time level n* data, increments not advected ON
Number of calls per timestep 2
With convective momentum transports included ON
Using Cape based buoyancy closure ON
Timescale in seconds for CAPE closure scheme 3600
With radiative representation of anvils included ON
Applying depth criteria for anvil clouds ON
Defining anvil factor 3.00
Defining tower factor 0.25
Excluding convective precipitation from the water path ON
Setting MPARWTR parameter (kg/kg) 1.00e-03
Updraught factor for reducing cloud water 0.12
Including accurate treatment of precipitation phase change ON
Forcing
Standard Name gravity wave drag
Local Name A06_4A
Definition Section 6: Gravity Wave Drag: New orographic scheme including flow blocking AND/OR spectral gravity wave scheme
Modified From Standard?
Reason for Modification:
References:
Reference: "Improvements to the Representation of Orography in the Met Office Unified Model", by S. Webster, A.R. Brown, D.R. Cameron and C.P. Jones, 2003, accepted for publication in the Quarterly Journal of the Royal Meteorological Society.
Parameters
Parameter Value
include orographic drag scheme ON
surface gravity wave constant 1.00e+05
critical Froude number 4.00
include spectral gravity wave scheme OFF
Forcing
Standard Name surface hydrology
Local Name A08_7A
Definition Section 8: Surface Hydrology: MOSES-II (for use with MOSES-II BL and Vegetation scheme)
Modified From Standard?
Reason for Modification:
References:
Forcing
Standard Name cloud scheme
Local Name A09_2A
Definition Section 9: Cloud Scheme: Standard cloud scheme with triangular probability density function
Modified From Standard?
Reason for Modification:
References:
Parameters
Parameter Value
using RHCrit parameterization ON
including cloud area parametrization (Gen2 Rad only) ON
Forcing
Standard Name dynamic adjustment
Local Name A10_2A
Definition Section 10: Dynamical Adjustment: GCR Solver used to solve Helmholtz Equation
Modified From Standard?
Reason for Modification:
References:
Parameters
Parameter Value
[4]: 1 iteration of [1: Vertical Preconditioner] followed by XZ ADI (global only) ON
Number of preconditioner calls 1
Size of ADI pseudo timestep 0.003
Add full solution for ADI ON
>GCR+Solver: Use zero as initial guess ON
GCR restart value (K_in in GCR(K)) 2
Maximum number of iterations 50
Initial + final residual + number of iterations ON
Absolute tolerance value 1.00e-02
Use default values ON
Forcing
Standard Name atmospheric tracer advection
Local Name A11_2A
Definition Section 11: Atmospheric tracer advection: Atmospheric tracer advection included
Modified From Standard?
Reason for Modification:
References:
Forcing
Standard Name advection
Local Name A12_2A
Definition Section 12: Primary field advection: Semi-Lagrangian advection
Modified From Standard?
Reason for Modification:
References:
Parameters
Parameter Value
M0: No monotone scheme 0
H3: ECMWF quasi-cubic interpolation 3
M1: Tri-linear Lagrange interpolation 1
H6: ECMWF quasi-cubic interpolation in the horizontal, quintic in the vertical 6
M0: No monotone scheme 0
H0: Linear interpolation - no high order scheme 0
M0: No monotone scheme 0
H0: Linear interpolation - no high order scheme 0
apply moisture conservation ON
apply more accurate non hydrostatic conservation for moisture ON
Vertical interpolation search tolerance 14
Use 2D vector coordinate geometry ON
iterations inside Ritchie scheme 2
Using monotone scheme ON
using monotone scheme 1 ON
Alpha_1 0.6
Alpha_2 1.0
Alpha_3 0.6
Alpha_4 1.0
Forcing
Standard Name diffusion
Local Name A13_2A
Definition Section 13: Diffusion, Divergence Damping and Filtering: Standard schemes
Modified From Standard?
Reason for Modification:
References:
Parameters
Parameter Value
Horizontal Diffusion Conservative
Vertical Diffusion OFF
Targeted diffusion of moisture ON
Diagnostic prints ON
Using Moisture resetting ON
Reset q in a local fashion ON
Lowest allowed value of q 1.00e-06
Filtering of u, v, w, and theta 1-2-1
Filtering of u, v, w, and theta increments 1-2-1
Polar filter latitude limit (degrees) 89.0
Northern latitude limit (+ve degrees) 88.0
Southern latitude limit (-ve degrees) 88.0
Number of sweeps of filter 3
Filter coefficient 0.250
Filter step per sweep 0.600
Forcing
Standard Name energy adjustment
Local Name A14_1B
Definition Section 14: Energy Adjustment: Standard energy adjustment included
Modified From Standard?
Reason for Modification:
References:
Parameters
Parameter Value
Number of hours between successive calls 24
Including dry mass correction ON
Including additional diagnostic printout ON
Forcing
Standard Name aerosols
Local Name A17_2A
Definition Section 17: Aerosols: Aerosol Modelling included
Modified From Standard?
Reason for Modification:
References:
Parameters
Parameter Value
with the sulpher cycle ON
with the soot scheme ON
with the biomass aerosol scheme ON
with the mineral dust scheme OFF
specify substep division (for S cycle only) 1
specify number of atmospheric tracer levels 38
Forcing
Standard Name sulphur
Local Name A17_2A_SULP
Definition Section 17: Aerosols. Sulphur Cycle: Sulphur cycle included
Modified From Standard?
Reason for Modification:
References:
Parameters
Parameter Value
Including surface sulphur dioxide emissions ON
Including high-level sulphur dioxide emissions ON
Specify the level 5
Including natural sulphur dioxide emissions (3D) ON
Including Dimethyl Sulphide ON
Including Dimethyl Sulphide Emissions ON
Wanninkhov scheme ON
Including Ozone as an oxidant and Ammonia as a buffer ON
Including ammonia emissions OFF
Environment Variable $HIGEM_ANCIL_AERO
directory ~mjw/um/ancils
file name DMSland_NH3_SO22000_N144
Surface sulphur-dioxide emissions ancillary field to be Updated
every 5
time days
Dimethyl Sulphide emissions ancillary field to be Updated
every 5
time days
Environment Variable $HIGEM_ANCIL_AERO
directory ~mjw/um/ancils
file name DMSconc_noassim_N144_6.1
DMS concentration in seawater ancillary field to be Updated
every 5
time days
Environment Variable $HIGEM_ANCIL_AERO
directory ~mjw/um/ancils
file name VOLC_ND_N144_L38_6.1
Natural SO2 emissions ancillary field to be Configured
Environment Variable $HIGEM_ANCIL_AERO
directory ~mjw/um/ancils
file name sulpc_oxidants_N144_L38
OH concentrations ancillary field to be Updated
every 5
time days
HO2 concentrations ancillary field to be Updated
every 5
time days
H2O2 concentrations ancillary field to be Updated
every 5
time days
Ozone-Oxidant concentrations ancillary field to be Updated
every 5
time days
Forcing
Standard Name soot
Local Name A17_2A_SOOT
Definition Section 17: Aerosols. Soot Model: Soot Modelling included
Modified From Standard?
Reason for Modification:
References:
Parameters
Parameter Value
Including surface soot emissions OFF
Including high-level soot emissions ON
Specify the level 2
Environment Variable $HIGEM_ANCIL_AERO
directory ~mjw/um/ancils
file name BC_hi_Nozawa_2000.N144
Surface soot emissions ancillary field to be Not Used
High-level soot emissions ancillary field to be Updated
every 5
time days
Forcing
Standard Name biomass aerosol
Local Name A17_2A_BIOM
Definition Section 17: Aerosols. Biomass Model: Biomass Modelling Included
Modified From Standard?
Reason for Modification:
References:
Parameters
Parameter Value
Including surface biomass emissions ON
Including high-level biomass emissions ON
Specify the lowest level for biomass emissions 7
Specify the highest level for biomass emissions 10
Environment Variable $HIGEM_ANCIL_AERO
directory ~mjw/um/ancils
file name Bioburn_Nozawa_2000.N144
Surface biomass emissions ancillary field to be Updated
every 5
time days
High-level biomass emissions ancillary field to be Updated
every 5
time days
Forcing
Standard Name aerosol effects
Local Name A17_2A_AERO_FX
Definition Section 17: Aerosols. Aerosol Effects
Modified From Standard?
Reason for Modification:
References:
Parameters
Parameter Value
Sulphate aerosol: DIRECT radiative effect (SW+LW) ON
Sulphate aerosol: FIRST INDIRECT effect (SW) ON
Sulphate aerosol: FIRST INDIRECT effect (LW) ON
Sulphate aerosol: SECOND INDIRECT effect ON
Sulphate aerosol: Use for CCN in aerosol scheme ON
Sea-salt aerosol: DIRECT radiative effect (SW+LW) ON
Sea-salt aerosol: FIRST INDIRECT effect (SW and/or LW) ON
Sea-salt aerosol: SECOND INDIRECT effect ON
Sea-salt aerosol: Use for CCN in aerosol scheme ON
Soot aerosol: DIRECT radiative effect (SW+LW) ON
Biomass aerosol: DIRECT radiative effect (SW+LW) ON
Biomass aerosol: FIRST INDIRECT effect (SW and/or LW) ON
Biomass aerosol: SECOND INDIRECT effect ON
Biomass aerosol: Use for CCN in aerosol scheme ON
Forcing
Standard Name data assimilation
Local Name A18_0
Definition Section 18: Data Assimilation: No data assimilation
Modified From Standard?
Reason for Modification:
References:
Forcing
Standard Name vegetation distribution
Local Name A19_1A
Definition Section 19: Vegetation: Fixed vegetation distribution
Modified From Standard?
Reason for Modification:
References:
Parameters
Parameter Value
Include leaf phenology OFF
Forcing
Standard Name vegetation settings
Local Name A19_1A_VEGA
Definition Section 19: Vegetation. VEGA: settings of vegetation ancillary
Modified From Standard?
Reason for Modification:
References:
Parameters
Parameter Value
Environment Variable
directory
file name qrparm.veg.newalb
Vegetation fraction ancillary field to be Not used
Forcing
Standard Name vegetation parametrization
Local Name A19_1A_VFRAC
Definition Section 19: Vegetation. VFRAC: settings of veg fractions and structures ancilliary/initialisation
Modified From Standard?
Reason for Modification:
References:
Parameters
Parameter Value
Environment Variable $HIGEM_ANCIL_093
directory ~lcs/um/vn6.1/ancil/atmos/higem_vn0.9.3
file name qrparm.veg.frac_npsea
Fractional covering of surface types is to be configured
Environment Variable $HIGEM_ANCIL_093
directory ~lcs/um/vn6.1/ancil/atmos/higem_vn0.9.3
file name qrparm.veg.frac_npsea
Leaf area index of plant functional types is to be Updated from ancil
every 5
time days
Canopy height of plant functional types is to be Updated from ancil
every 5
time days
Grid-box-mean canopy conductance is to be Not used
Forcing
Standard Name soil
Local Name A19_1A_SOIL
Definition Section 19: Vegetation. SOIL: settings of soil parameters ancillary
Modified From Standard?
Reason for Modification:
References:
Parameters
Parameter Value
Environment Variable $HIGEM_ANCIL_093
directory ~lcs/um/vn6.1/ancil/atmos/higem_vn0.9.3
file name qrparm.veg.frac_npsea
Volumetric soil moisture concentration at wilting point ancillary field to be configured
Volumetric soil moisture content at critical point ancillary field to be configured
Volumetric soil moisture concentration at saturation ancillary field to be configured
Saturated hydraulic conductivity ancillary field to be configured
Clapp-Hornberg B parameter ancillary field to be configured
Thermal capacity of soil ancillary field to be configured
Thermal conductivity of soil ancillary field to be configured
Saturated soil water suction ancillary field to be configured
Snow-free soil albedo ancillary field to be configured
Soil carbon content ancillary field to be configured
Forcing
Standard Name vegetation disturbance
Local Name A19_1A_DIST
Definition Section 19: Vegetation. DIST: settings of veg disturbance ancilliary
Modified From Standard?
Reason for Modification:
References:
Parameters
Parameter Value
Environment Variable
directory
file name qrparm.veg.dist
Disturbed fraction of vegetation to be Not used
Forcing
Standard Name chemistry ctm
Local Name A25_0A
Definition Section 25: Chemistry CTM: No coupling from Chemistry CTM to Atmosphere
Modified From Standard?
Reason for Modification:
References:
Forcing
Standard Name river routing
Local Name A26_1A
Definition Section 26: River Routing: Global Model
Modified From Standard?
Reason for Modification:
References:
Parameters
Parameter Value
Number of Columns (X direction) 360
Number of Row (Y direction)s 180
River Routing Timestep (sec) 86400
Effective Velocity (m/sec) 0.400
Meander Ratio 1.400
Include river outflow ON
Forcing
Standard Name radiation
Local Name A70_1B
Definition Section 70: Shared Radiation Routines: Standard shared routines included
Modified From Standard?
Reason for Modification:
References:
Forcing
Standard Name ozone
Local Name AO3_0
Definition Section O3: Ozone: match ozone tropopause in ancillary to terminal tropopause conserving the column mass
Modified From Standard?
Reason for Modification:
References:
Forcing
Standard Name qsat
Local Name A90_2B
Definition Section 90: Including QSAT: including QSAT (saturated mixing ratio)
Modified From Standard?
Reason for Modification:
References:
Forcing
Input and Output
Inputs
Initial Conditions
Description
Change History:
Change: input test one
Date: 2005-01-01
Reason For Change: test
References:
Reference:
Physical Constants
Standard Name Name Value Reference
earth radius erad 3671 km
Boundary Conditions
Description Boundary Condition Type Reference Dataset
this is my boundary condition Preindustrial boundary.asc
Coupling Requirements TBD
Outputs
UM Ocean HIGEM-control
Parent Codebase
Repository Identifier: BADC
Scheme Identifier: NMM_UMUIv6
Local Identifier: NMMCodebase_UMUIv6
Parent Component
Repository Identifier: BADC
Scheme Identifier: NMM_UM_Ocean_v6.1
Local Identifier: UM Ocean HIGEM-control
Technical Properties
Machine login.hpcx.ac.uk
Description A Supercomputer
Compiler F90
Version v 1.2
Description this is my test compiler
Options

Optimization no optimization
Libraries


Date Compiled 2006-06-06
Change History:
Change:
Date:
Reason For Change:
Environment Variables
Name: UMDIR
Value: /hpcx/home/n02/n02/umx
Name: HIGEM_ANCIL_AERO
Value: ~mjw/um/ancils
Name: HIGEM_ANCIL_093
Value: ~lcs/um/vn6.1/ancil/atmos/higem_vn0.9.3
Name:
Value:
Code Parallelisation
Processors Used: 256
Halo Size: 4
Numerical Properties
Horizontal Representation
Vertical Representation
Time Integration
Science Properties
Standard Name horizontal
Local Name Ocean_horizontal
Definition Resolution and Domain: Horizontal: Global
Modified From Standard?
Reason for Modification:
References:
Parameters
Parameter Value
Number of Columns (X - Direction) 1082
Number of Rows (Y - Direction) 540
Column Spacing 0.333333
Row Spacing 0.333333
First Latitude -89.83333
First Longitude 0.00000
Include polar island as standard ON
Standard Name vertical
Local Name Ocean_vertical
Definition Resolution and Domain: Vertical: Vertical Dimensions and Domain
Modified From Standard?
Reason for Modification:
References:
Parameters
Parameter Value
Number of Levels 40
Islands in Topography No
Maximum number of vorticity start and end indices 20
Standard Name time stepping
Local Name Ocean_timestep
Definition Time Stepping.
Modified From Standard?
Reason for Modification:
References:
Parameters
Parameter Value
Number of timesteps per 'period' 72
Number of days per 'period' 1
Number of basic timesteps between mixing timesteps 72
Distortion factor for the internal mode 1.00
Distortion factor for the external mode 1.00
Number of barotropic timesteps per baroclinic timesteps 1
Standard Name advection
Local Name Ocean_tracer_advection
Definition Advection of Tracers: Advection of Tracers in the Ocean
Modified From Standard?
Reason for Modification:
References:
Parameters
Parameter Value
Advection of active tracers (temperature and salinity) Fourth order differencing (with upwind at bottom)
Forcing
Standard Name dynamic
Local Name Ocean_dynamic_parameters
Definition Dynamic Parameters
Modified From Standard?
Reason for Modification:
References:
Parameters
Parameter Value
Number of basic timesteps between mixing timesteps 72
Coefficient for semi-implicit treatment of Coriolis term 0.000
Constant for time filtering 0.010
Forcing
Standard Name filtering
Local Name Ocean_fourier_filtering
Definition Fourier Filtering at High Lats: Include Filtering
Modified From Standard?
Reason for Modification:
References:
Parameters
Parameter Value
Maximum number of start and end indices 25
First tracer row to be filtered 34
Tracer row used to define basic zonal dimension 510
Last tracer row in southern hemisphere to be filtered 34
First tracer row in northern hemisphere to be filtered 510
Velocity row used to define basic zonal dimension used for filtering 509
Last velocity row in southern hemisphere to be filtered 34
First velocity row in northern hemisphere to be filtered 509
Forcing
Standard Name mixed layer
Local Name Ocean_mixed_layer
Definition Mixed Layer Model: Kraus-Turner scheme
Modified From Standard?
Reason for Modification:
References:
Parameters
Parameter Value
wind mixing energy scaling factor 0.550
Decay of wind mixing energy with depth (m) 1.00e+02
Parameter determining decay of convectively generated energy 0.150
Forcing
Standard Name vertical diffusion
Local Name Ocean_vertical_diffusion
Definition Vertical Diffusion. Implicit vertical diffusion only - with a Richardson number diffusion scheme
Modified From Standard?
Reason for Modification:
References:
Parameters
Parameter Value
Richardson number diffusion - Peters et al ON
Choose Density Option STATEC
Choose USTAR Option Wind Mixing Energy
Background coefficient of vertical mixing of momentum 1.00e-04
Coefficient of vertical mixing of momentum dependent on Ri 5.50e-03
Background coefficient of vertical mixing of tracers at the surface 1.00e-05
...Rate of increase with depth (m/s). Set of zero for constant 2.80e-08
Maximum value of vertical mixing allowable for stability 1.00e-02
Enable the Quadratic Large Scheme ON
Critical Richardson number to calculate depth for quadratic Large scheme 0.30
Maximum depth for quadratic Large scheme in meters 8.00e+01
Forcing
Standard Name horizontal momentum diffusion
Local Name Ocean_horizontal_momentum_diffusion
Definition Horizontal Momentum Diffusion: With coefficients constant in latitude
Modified From Standard?
Reason for Modification:
References:
Parameters
Parameter Value
mixing coefficient (m*m/s) 0.00e+00
Enable scale-selective biharmonic momentum diffusion ON
Biharmonic mixing coefficient BM_SI(M**4/s) 4.00e+11
Forcing
Standard Name horizontal tracer diffusion
Local Name Ocean_horizontal_tracer_diffusion
Definition Horizontal tracer Diffusion: Isopycnal Diffusion: Griffies version as for HadCM3/4
Modified From Standard?
Reason for Modification:
References:
Parameters
Parameter Value
AHI1 (m*m/s) - Magnitude of diffusion at surface 5.00e+02
AHI2 (m*m/s) - Magnitude of diffusion in deep ocean 5.00e+02
AHI3 (m) - Scale depth 5.00e+02
Maximum allowable slope for diffusion 1.00e+02
Coefficient (m*m/s) 0.00e+00
Skew-Diffusive formulation ON
HadCM4 formulation for calculating coeffs ON
Include tapering of isopycnals ON
Enable scale selective biharmonic form of Gent and McWilliams ON
ATHKDF_BI_SI (m**4/s) - Biharmonic GM Coefficient 1.00e+11
Forcing
Standard Name bottom friction
Local Name Ocean_bottom_friction
Definition Bottom Friction: Use bottom friction option
Modified From Standard?
Reason for Modification:
References:
Parameters
Parameter Value
use bottom friction option ON
Forcing
Standard Name bottom boundary layer
Local Name Ocean_bottom_boundary_layer
Definition Bottom Boundary Layer: Beckmann and Doscher BBL Model: OFF
Modified From Standard?
Reason for Modification:
References:
Parameters
Parameter Value
use Beckmann and Doscher BBL Model OFF
Forcing
Standard Name barotropic solution
Local Name Ocean_barotropic_solution
Definition Barotropic solution: 'Free surface' Barotropic Solution
Modified From Standard?
Reason for Modification:
References:
Parameters
Parameter Value
Maximum number of iterations permitted 5000
Criterion for convergence of solver 1.00e-01
Maximum number of Ocean segements per row 24
Using Delphus-Delcross smoothing for the surface height field ON
Coefficient for the Delphus -Delcross weighting 5.00e-01
Forcing
Standard Name momentum flux solution
Local Name Ocean_momentum_flux_solution
Definition Solution of momentum flux: Modified Cox scheme
Modified From Standard?
Reason for Modification:
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Forcing
Standard Name sea ice
Local Name Ocean_sea_ice_model
Definition Sea Ice Model: Prognostic sea ice model, with multiple ice categories: McPhee scheme
Modified From Standard?
Reason for Modification:
References:
Parameters
Parameter Value
McPhee scheme ON
Simple scheme ocean/ice heat diffusion coeff, NH 2.50e-04
Simple scheme ocean/ice heat diffusion coeff, SH 2.50e-04
McPhee heat transfer coefficient 6.00e-03
McPhee minimum friction 5.00e-03
Salinity of sea ice 0.006
Minimum local ice depth (m) 0.010
Minimum grid box averaged ice depth (m) 1.00e-04
Maximum ice concentration, northern hemisphere 0.995
Maximum ice concentration, southern hemisphere 0.980
Minimum ice concentration 0.001
Marginal ice concentration for ocean/ice heat flux 0.050
Number of sea ice categories 5
Min local snow thickness (m) 0.00001
Min local thickness of new ice growing in leads (m) 0.050
Elastic-viscous-plastic (EVP) dynamics model ON
Fraction of ice and leads that ridges 0.150
Coefficient determining the mean thickness of ice ridges (m) 100.000
Fraction of shear energy used in ridging 0.500
Fraction of ridged snow that survives ridging 0.500
Include polar islands as standard ON
Forcing
Standard Name sea ice dynamics
Local Name Ocean_sea_ice_dynamics
Definition Sea Ice Dynamics: Elastic-viscous-plastic (EVP) dynamics model
Modified From Standard?
Reason for Modification:
References:
Parameters
Parameter Value
P* (maximum compressive strength of ice per unit thickness) (N/m**2) 2.00e+04
C* (rate at which ice strength decreases with concentration) 20.00
Subcycling timestep (seconds) 10
Elastic damping timescale as fraction of forcing step 0.300
Quadratic ice-ocean drag coefficient 1.50e-02
Min GBM ice depth (m) impeding convergence 4
Max GBM ice depth (m) allowing convergence 4
Include scheme to advect ice over North Polar island ON
Smooth ice strength ON
Latitude at which filtering starts 87.500
Rothrock ice strength formula OFF
Smooth ice velocities ON
Forcing
Standard Name carbon cycle
Local Name Ocean_carbon_cycle_model
Definition Carbon cycle Model: No carbon cycle model
Modified From Standard?
Reason for Modification:
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Forcing
Standard Name chemical tracers
Local Name Ocean_extra_chemical_tracers
Definition Extra Chemical Tracers: No extra ocean tracers
Modified From Standard?
Reason for Modification:
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Forcing
Standard Name straits parametrization
Local Name Ocean_straits_parametrizations
Definition Straits Parametrizations: no Mediteranean outflow, use generalised strait exchange flow scheme
Modified From Standard?
Reason for Modification:
References:
Parameters
Parameter Value
Use generalised strait exchange flow scheme ON
Number of straits in model 1
Specify Strait to inspect/ammend Strait 1
End 1 (i,j) 62, 378
End 2 (i,j) 65, 378
Deepest level of exchange flow 25
volume flux for levels 1 to 10 0.0500
volume flux for levels 11 to 23 0.000
volume flux for levels 24 to 25 -0.2500
should either end of the strait take climatological temperautre and salinity? OFF
Forcing
Standard Name salinity
Local Name Ocean_salinity_controls
Definition Salinity Controls: no reference salinity, use salinity limits
Modified From Standard?
Reason for Modification:
References:
Parameters
Parameter Value
Use a reference salinity in surface flux calculations OFF
Apply limits to range of surface salinity permitted ON
Upper salinity limit (psu/1000) 4.50000e-02
Lower salinity limit (psu/1000) 5.00000e-03
Disable heat flux correction ON
Forcing
Standard Name convection
Local Name Ocean_convection
Definition Ocean Convection: Ramstorf full convection scheme
Modified From Standard?
Reason for Modification:
References:
Parameters
Parameter Value
Additionally Roussenov Convective Adjustment OFF
Forcing
Standard Name equation of state
Local Name Ocean_equation_of_state
Definition Equation of state: McDougall EOS
Modified From Standard?
Reason for Modification:
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Forcing
Standard Name haney forcing
Local Name Ocean_haney_forcing
Definition Surface Forcing: Haney Forcing: No Haney Forcing
Modified From Standard?
Reason for Modification:
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Forcing
Standard Name Solar Radiation
Local Name Ocean_solar_radiation
Definition Surface Forcing: Solar Radiation: Penatrative solar absorption: Standard version included
Modified From Standard?
Reason for Modification:
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Parameters
Parameter Value
Coefficient ETA1 (per m) 1.000e+00
Coefficient ETA2 (per m) 5.000e-02
Coefficient RSOL 3.800e-01
Forcing
Standard Name flux correction
Local Name Ocean_flux_correction
Definition Surface Forcing: Flux correction: Flux correction applied
Modified From Standard?
Reason for Modification:
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Forcing
Standard Name ice model forcing
Local Name Ocean_ice_model_forcing
Definition Surface Forcing: Ice Model Forcing: This is defined as coupled. Ice model forcing is precluded
Modified From Standard?
Reason for Modification:
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Forcing
Standard Name river outflow
Local Name Ocean_river_outflow
Definition Surface Forcing: River Outflow: Include River Outflow
Modified From Standard?
Reason for Modification:
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Forcing
Standard Name ocean row calculations
Local Name Ocean_30_1A
Definition Ocean Row Calculations: standard Ocean Row Calculations
Modified From Standard?
Reason for Modification:
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Forcing
Standard Name barotropic solution
Local Name Ocean_31_1A
Definition Barotropic Solution: standard Barotropic Solution
Modified From Standard?
Reason for Modification:
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Forcing
Standard Name ocean ice calculations
Local Name Ocean_32_1A
Definition Ocean Ice Calculations: Standard Ocean Ice Calculations
Modified From Standard?
Reason for Modification:
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Forcing
Standard Name ocean assimilation
Local Name Ocean_35_0
Definition Ocean Assimilation: Ocean Assimilation not included
Modified From Standard?
Reason for Modification:
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Forcing
Input and Output
Inputs
Initial Conditions
Description
Change History:
Change: input test one
Date: 2005-01-01
Reason For Change: test
References:
Reference: input reference one
Reference: input reference two
Physical Constants
Standard Name Name Value Reference
earth radius erad 9999
Boundary Conditions
Description Boundary Condition Type Reference Dataset
this is my boundary condition Preindustrial boundary.asc
Coupling Requirements TBD
Outputs