Changes between Version 78 and Version 79 of doc/app/land_surface_parameters
- Timestamp:
- Jan 8, 2018 10:20:39 PM (7 years ago)
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doc/app/land_surface_parameters
v78 v79 6 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 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.8 A minimum configuration of the LSM requires setting of the parameters [#soil_type soil_type], [#vegetation_type vegetation_type], [#soil_temperature soil_temperature], and [#soil_moisture soil_moisture]. 9 9 10 10 Note that the use of the LSM requires using a [wiki:doc/tec/radiation radiation model]. … … 516 516 soil_temperature = 300.0, 300.0, 300.0, 300.0, 300.0, 300.0, 300.0, 300.0, 300.0, 517 517 }}} 518 The first six values here represent the temperature of the soil layers (defined at the center of the layers of depths[#dz_soil dz_soil]. The last (here: ninth) value represents the deep soil temperature, which is fixed (boundary condition).518 The first eight values here represent the temperature of the soil layers (defined at the center of the layers of depths [#dz_soil dz_soil]. An additional value must be provided (here the ninth) which represents the bottom boundary condition (deep soil temperature). Note that this implies that for N soil layers, soil_temperature requires N+1 values, while soil_moisture and dz_soil both must be of size N. 519 519 }}} 520 520 |----------------