Changes between Version 32 and Version 33 of doc/tec/lsm


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Timestamp:
Apr 15, 2016 2:21:51 PM (9 years ago)
Author:
maronga
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  • doc/tec/lsm

    v32 v33  
    313313== Exception: pavement ==
    314314It is possible to account for urban land surfaces such as roads by adding a pavement layer to the soil model. This is realized by setting the parameter {{{veg_type = 20}}}. The pavement is steered via a depth ([wiki:doc/app/lsmpar#pave_depth pave_depth]), a heat capacity ([wiki:doc/app/lsmpar#pave_heat_capacity pave_heat_capacity]), and a heat conductivity ([wiki:doc/app/lsmpar#pave_heat_conductivity pave_heat_conductivity]). The pavement then replaces the upper soil layers up to a depth of {{{pave_depth}}}. In case that {{{pave_depth}}} is between two soil layers, the respective heat conductivity and heat capacities are linearly interpolated between the soil value and the pavement value to the respective grid point.
     315
     316Note that the pavement layer must be at least have the same depth as the uppermost soil layer. If the prescribed pavement depth is too small, it is automatically set to this minimum depth.
    315317
    316318The pavement is able to hold a maximum liquid water column of 1 mm from precipitation, which can also evaporate. The soil below the pavement is assumed to be completely dry.