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CESM2.2.2 CLM Namelist Definitions

Model Version: 2.2.2

Component Tag:

release-cesm2.2.04

HTML Created:

2024-10-02

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Variable	Namelist Group	Category	Entry Type	Valid Values	Possible Default Values	Description and out-of-the-box Default
albice	clm_inparm	clm_physics	real(2)	['any real(2)']	is 0.50,0.30 for: {'phys': 'clm5_0'} is 0.60,0.40 for: {'phys': 'clm4_5'}	Visible and Near-infrared albedo's for glacier ice
all_active	clm_inparm	clm_physics	logical	['.true.', '.false.']		If TRUE, make ALL pfts, columns and landunits active, even those with 0 weight. This means that computations will be run even over these 0-weight points. THIS IS ONLY FOR TESTING PURPOSES - IT HAS NOT BEEN CHECKED FOR SCIENTIFIC VALIDITY.
all_urban	clmexp	mksurfdata	logical	['.true.', '.false.']		If TRUE, ignore other files, and set the output percentage to 100% urban and zero for other land-use types.
allowlakeprod	ch4par_in	clm_methane	logical	['.true.', '.false.']		If TRUE, turn on methane biogeochemistry model for lake columns, using a simplified version of the CH4 submodel. (EXPERIMENTAL)
anoxia	clm_inparm	clm_vertcn	logical	['.true.', '.false.']		If TRUE, reduce heterotrophic respiration according to available oxygen predicted by CH4 submodel.
atm_c13_filename	clm_inparm	clm_isotope	char*256	['any char']	is lnd/clm2/isotopes/atm_delta_C13_CMIP6_1850-2015_yearly_v2.0_c190528.nc for: {'use_c13': '.true.', 'use_c13_timeseries': '.true.', 'ssp_rcp': 'hist'} is lnd/clm2/isotopes/atm_delta_C13_CMIP6_SSP119_1850-2100_yearly_c181209.nc for: {'use_c13': '.true.', 'use_c13_timeseries': '.true.', 'ssp_rcp': 'SSP1-1.9'} is lnd/clm2/isotopes/atm_delta_C13_CMIP6_SSP126_1850-2100_yearly_c181209.nc for: {'use_c13': '.true.', 'use_c13_timeseries': '.true.', 'ssp_rcp': 'SSP1-2.6'} is lnd/clm2/isotopes/atm_delta_C13_CMIP6_SSP245_1850-2100_yearly_c181209.nc for: {'use_c13': '.true.', 'use_c13_timeseries': '.true.', 'ssp_rcp': 'SSP2-4.5'} is lnd/clm2/isotopes/atm_delta_C13_CMIP6_SSP3B_1850-2100_yearly_c181209.nc for: {'use_c13': '.true.', 'use_c13_timeseries': '.true.', 'ssp_rcp': 'SSP3-7.0'} is lnd/clm2/isotopes/atm_delta_C13_CMIP6_SSP534os_1850-2100_yearly_c181209.nc for: {'use_c13': '.true.', 'use_c13_timeseries': '.true.', 'ssp_rcp': 'SSP5-3.4'} is lnd/clm2/isotopes/atm_delta_C13_CMIP6_SSP5B_1850-2100_yearly_c181209.nc for: {'use_c13': '.true.', 'use_c13_timeseries': '.true.', 'ssp_rcp': 'SSP5-8.5'}	Filename with time series of atmospheric Delta C13 data, which use CMIP6 format. variables in file are "time" and "delta13co2_in_air". time variable is in format: years since 1850-01-01 0:0:0.0. units are permil.
atm_c14_filename	clm_inparm	clm_isotope	char*256	['any char']	is lnd/clm2/isotopes/atm_delta_C14_CMIP6_3x1_global_1850-2015_yearly_v2.0_c190528.nc for: {'use_c14': '.true.', 'use_c14_bombspike': '.true.', 'ssp_rcp': 'hist'} is lnd/clm2/isotopes/atm_delta_C14_CMIP6_SSP119_3x1_global_1850-2100_yearly_c181209.nc for: {'use_c14': '.true.', 'use_c14_bombspike': '.true.', 'ssp_rcp': 'SSP1-1.9'} is lnd/clm2/isotopes/atm_delta_C14_CMIP6_SSP126_3x1_global_1850-2100_yearly_c181209.nc for: {'use_c14': '.true.', 'use_c14_bombspike': '.true.', 'ssp_rcp': 'SSP1-2.6'} is lnd/clm2/isotopes/atm_delta_C14_CMIP6_SSP245_3x1_global_1850-2100_yearly_c181209.nc for: {'use_c14': '.true.', 'use_c14_bombspike': '.true.', 'ssp_rcp': 'SSP2-4.5'} is lnd/clm2/isotopes/atm_delta_C14_CMIP6_SSP3B_3x1_global_1850-2100_yearly_c181209.nc for: {'use_c14': '.true.', 'use_c14_bombspike': '.true.', 'ssp_rcp': 'SSP3-7.0'} is lnd/clm2/isotopes/atm_delta_C14_CMIP6_SSP534os_3x1_global_1850-2100_yearly_c181209.nc for: {'use_c14': '.true.', 'use_c14_bombspike': '.true.', 'ssp_rcp': 'SSP5-3.4'} is lnd/clm2/isotopes/atm_delta_C14_CMIP6_SSP5B_3x1_global_1850-2100_yearly_c181209.nc for: {'use_c14': '.true.', 'use_c14_bombspike': '.true.', 'ssp_rcp': 'SSP5-8.5'}	Filename with time series of atmospheric Delta C14 data. variables in file are "time" and "Delta14co2_in_air". time variable is in format: years since 1850-01-01 0:0:0.0 units are permil.
baseflow_scalar	soilhydrology_inparm	clm_physics	real	['any real']	is 1.d-2 for: {'phys': 'clm5_0', 'lower_boundary_condition': '1'} is 0.001d00 for: {'phys': 'clm5_0', 'lower_boundary_condition': '2'} is 1.d-2 for: {'phys': 'clm4_5', 'lower_boundary_condition': '1'} is 1.d-2 for: {'phys': 'clm4_5', 'lower_boundary_condition': '2'}	Scalar multiplier for base flow rate (ONLY used if lower_boundary_condition is not aquifer or table)
baset_latvary_intercept	crop	physics	real	['any real']	is 12.0d00 for: {'use_crop': '.true.', 'phys': 'clm5_0', 'baset_mapping': 'varytropicsbylat'}	Only used when baset_mapping == varytropicsbylat Intercept at zero latitude to add to baset from the PFT parameter file
baset_latvary_slope	crop	physics	real	['any real']	is 0.4d00 for: {'use_crop': '.true.', 'phys': 'clm5_0', 'baset_mapping': 'varytropicsbylat'}	Only used when baset_mapping == varytropicsbylat Slope with latitude in degrees to vary tropical baset by
Variable	Namelist Group	Category	Entry Type	Valid Values	Possible Default Values	Description and out-of-the-box Default

Showing 1 to 10 of 413 entries