Changes between Version 54 and Version 55 of doc/app/land_surface_parameters
- Timestamp:
- Jun 30, 2017 11:55:37 AM (8 years ago)
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doc/app/land_surface_parameters
v54 v55 4 4 Since r1551 a full land surface model (LSM) is available in PALM. It consists of a four layer soil model, predicting soil temperature and moisture content, and a solver for the energy balance at the surface. Moreover, a liquid water reservoir accounts for the presence of liquid water on plants due to dew/fog. The implementation is based on the ECMWF-IFS land surface parametrization (TESSEL) and its adaption in the DALES model. More more details, see [wiki:doc/tec/lsm land surface model documentation]. 5 5 6 All parts of the LSM code are modularized in module [/browser/palm/trunk/SOURCE/land_surface_model.f90 land_surface_model_mod]. In this context, a new Fortran NAMELIST {{{lsm_par}}} was added, containing all LSM-related steering parameters. The LSM is automatically activated when a {{{lsm_par}}} is set in the parameter file ({{{_p3d}}}). The user can easily set all relevant LSM parameters by choosing between 3 different surface types (vegetation, pavement, water) and various pre-defined surface classes 17 pre-defined [#vegetation_type vegetation types], 7 pre-defined [#pavement_type pavement type s], 4 pre-defined [#water_type water types], and 6 different [#soil_type soil types]. The default setting of the LSM is a soil of medium porosity covered to 85% with short grass. It is also possible to modify the pre-defined vegetation/soil types by overwriting some of the parameters. Moreover it is possible to create user-defined vegetation and soil types from scratch.6 All parts of the LSM code are modularized in module [/browser/palm/trunk/SOURCE/land_surface_model.f90 land_surface_model_mod]. In this context, a new Fortran NAMELIST {{{lsm_par}}} was added, containing all LSM-related steering parameters. The LSM is automatically activated when a {{{lsm_par}}} is set in the parameter file ({{{_p3d}}}). The user can easily set all relevant LSM parameters by choosing between 3 different surface types (vegetation, pavement, water) and various pre-defined surface classes 17 pre-defined [#vegetation_type vegetation types], 7 pre-defined [#pavement_type pavement type]s, 4 pre-defined [#water_type water types], and 6 different [#soil_type soil types]. The default setting of the LSM is a soil of medium porosity covered to 85% with short grass. It is also possible to modify the pre-defined vegetation/soil types by overwriting some of the parameters. Moreover it is possible to create user-defined vegetation and soil types from scratch. 7 7 8 8 A minimum configuration of the LSM requires setting of the parameters [#soil_type soil_type], and [#vegetation_type vegetation_type]. Setting of initial vertical profiles of [#soil_temperature soil_temperature] and [#soil_moisture soil_moisture] is recommended. … … 204 204 }}} 205 205 {{{#!td style="vertical-align:top" 206 depending on [ =#pavement_type pavement_type]206 depending on [#pavement_type pavement_type] 207 207 }}} 208 208 {{{#!td … … 217 217 }}} 218 218 {{{#!td style="vertical-align:top" 219 depending on [ =#pavement_type pavement_type]219 depending on [#pavement_type pavement_type] 220 220 }}} 221 221 {{{#!td … … 230 230 }}} 231 231 {{{#!td style="vertical-align:top" 232 depending on [ =#pavement_type pavement_type]232 depending on [#pavement_type pavement_type] 233 233 }}} 234 234 {{{#!td … … 258 258 259 259 (ph_cond: pavement_heat_conductivity, ph_cap: pavement_heat_capacity) 260 ||= '''pavement_type'''=||='''pavement_depth''' =||='''z0_pavement''' =||='''z0h_pavement'''=||='''ph_cond''' =||='''ph_cap''' =||260 ||= [#pavement_type '''pavement type'''] =||= [#pavement_depth '''pavement_depth'''] =||=[#z0_pavement '''z0_pavement'''] =||= [#z0h_pavement '''z0h_pavement'''] =||='''ph_cond''' =||='''ph_cap''' =|| 261 261 || 1|| 0.05|| 1.0E-4|| 1.0E-5|| 1.00|| 1.94E6|| 262 262 || 2|| 0.05|| 1.0E-4|| 1.0E-5|| 1.00|| 1.94E6||