Changes between Version 4 and Version 5 of doc/app/land_surface_parameters

Timestamp:

Mar 3, 2015 4:01:58 PM (10 years ago)

Author:

maronga

Comment:

--

doc/app/land_surface_parameters

@@ -12 +12 @@
 |----------------
 {{{#!td style="vertical-align:top"
-[=#alpha_lad '''alpha_lad''']
-}}}
-{{{#!td style="vertical-align:top"
-R
-}}}
-{{{#!td style="vertical-align:top"
-9999999.9
-}}}
-{{{#!td
-Dummy
-}}}
-|----------------
+[=#alpha_vengenuchten '''alpha_vangenuchten''']
+}}}
+{{{#!td style="vertical-align:top"
+R
+}}}
+{{{#!td style="vertical-align:top"
+9999999.9
+}}}
+{{{#!td
+Value of the coefficient alpha for the calculation of the hydraulic conductivity of soil in the parametrization after Van Genuchten (1980).
+}}}
+|----------------
+{{{#!td style="vertical-align:top"
+[=#c_surface '''c:surface''']
+}}}
+{{{#!td style="vertical-align:top"
+R
+}}}
+{{{#!td style="vertical-align:top"
+20000.0
+}}}
+{{{#!td
+Heat capacity of the surface (skin layer) per unit of area (in J/m²/K).
+}}}
+|----------------
+{{{#!td style="vertical-align:top"
+[=#canopy_resistance_coefficient '''canopy_resistance_coefficient''']
+}}}
+{{{#!td style="vertical-align:top"
+R
+}}}
+{{{#!td style="vertical-align:top"
+9999999.9
+}}}
+{{{#!td
+A coefficient (in 1/hPa) for the dependence of the canopy resistance on water vapor pressure deficit.
+}}}
+|----------------
+{{{#!td style="vertical-align:top"
+[=#conserve_water_content '''conserve_water_content''']
+}}}
+{{{#!td style="vertical-align:top"
+L
+}}}
+{{{#!td style="vertical-align:top"
+.T.
+}}}
+{{{#!td
+Flag parameter for the bottom boundary condition of the soil model.
+
+The usee can choose between the following two options:
+
+'' '.T.' ''
+
+Closed bottom (bedrock, no drainage). Conservation of water in the soil and atmosphere is guaranteed.
+
+
+'' '.F.' ''
+
+Open bottom (free drainage). Water can leave the soil model and conservation of water is not guaranteed.
+
+}}}
+|----------------
+{{{#!td style="vertical-align:top"
+[=#dewfall '''dewfall''']
+}}}
+{{{#!td style="vertical-align:top"
+L
+}}}
+{{{#!td style="vertical-align:top"
+.T.
+}}}
+{{{#!td
+In case dewfall = .T., all supersatured water at the lowest grid level is immediately removed and transferred to the liquid water reservoir (or soil, depending on the [#vegetation_coverage vegetation coverage] and the filling level of the liquid water reservoir). Alternatively, dewfall = .F. will switch off this parametrization (yet to be tested).
+}}}
+|----------------
+{{{#!td style="vertical-align:top"
+[=#f_shortwave_incoming '''f_shortwave_incoming''']
+}}}
+{{{#!td style="vertical-align:top"
+R
+}}}
+{{{#!td style="vertical-align:top"
+9999999.9
+}}}
+{{{#!td
+Fraction of the net shortwave radiation that is transmitted directly to the top soil layer. The remaining fraction of the shortwave radiation is absorbed by the surface (skin layer). This parameter has not been fully implemented yet and is fixed to 0.
+}}}
+|----------------
+{{{#!td style="vertical-align:top"
+[=#hydraulic_conductivity '''hydraulic_conductivity''']
+}}}
+{{{#!td style="vertical-align:top"
+R
+}}}
+{{{#!td style="vertical-align:top"
+9999999.9
+}}}
+{{{#!td
+Hydraulic conductivity of the soil at saturation (in m/s).
+}}}
+|----------------
+{{{#!td style="vertical-align:top"
+[=#lambda_surface_stable '''lambda_surface_stable''']
+}}}
+{{{#!td style="vertical-align:top"
+R
+}}}
+{{{#!td style="vertical-align:top"
+9999999.9
+}}}
+{{{#!td
+Aerodynamic coupling between canopy and soil (in W/m²/K) in case of stable stratification.
+}}}
+|----------------
+{{{#!td style="vertical-align:top"
+[=#lambda_surface_unstable '''lambda_surface_unstable''']
+}}}
+{{{#!td style="vertical-align:top"
+R
+}}}
+{{{#!td style="vertical-align:top"
+9999999.9
+}}}
+{{{#!td
+Aerodynamic coupling between canopy and soil (in W/m²/K) in case of unstable stratification.
+}}}
+|----------------
+{{{#!td style="vertical-align:top"
+[=#leaf_area_index '''leaf_area_index''']
+}}}
+{{{#!td style="vertical-align:top"
+R
+}}}
+{{{#!td style="vertical-align:top"
+9999999.9
+}}}
+{{{#!td
+Leaf area index of the canopy (in m²/m²).
+}}}
+|----------------
+{{{#!td style="vertical-align:top"
+[=#l_vangenuchten '''l_vangenuchten''']
+}}}
+{{{#!td style="vertical-align:top"
+R
+}}}
+{{{#!td style="vertical-align:top"
+9999999.9
+}}}
+{{{#!td
+Value of the coefficient {{{l}}} for the calculation of the hydraulic conductivity of soil in the parametrization after Van Genuchten (1980).
+}}}
+|----------------
+{{{#!td style="vertical-align:top"
+[=#min_canopy_resistance '''min_canopy_resistance''']
+}}}
+{{{#!td style="vertical-align:top"
+R
+}}}
+{{{#!td style="vertical-align:top"
+9999999.9
+}}}
+{{{#!td
+Minimum canopy resistance (in s/m).
+}}}
+|----------------
+{{{#!td style="vertical-align:top"
+[=#field_capacity '''field_capacity''']
+}}}
+{{{#!td style="vertical-align:top"
+R
+}}}
+{{{#!td style="vertical-align:top"
+9999999.9
+}}}
+{{{#!td
+Soil moisture at field capacity (in m³/m³).
+}}}
+|----------------
+{{{#!td style="vertical-align:top"
+[=#residual_moisture '''residual_moisture''']
+}}}
+{{{#!td style="vertical-align:top"
+R
+}}}
+{{{#!td style="vertical-align:top"
+9999999.9
+}}}
+{{{#!td
+Residual soil moisture content (in m³/m³).
+}}}
+|----------------
+{{{#!td style="vertical-align:top"
+[=#saturation_moisture '''saturation_moisture''']
+}}}
+{{{#!td style="vertical-align:top"
+R
+}}}
+{{{#!td style="vertical-align:top"
+9999999.9
+}}}
+{{{#!td
+Soil moisture at saturation (in m³/m³).
+}}}
+|----------------
+{{{#!td style="vertical-align:top"
+[=#wilting_point '''wilting_point''']
+}}}
+{{{#!td style="vertical-align:top"
+R
+}}}
+{{{#!td style="vertical-align:top"
+9999999.9
+}}}
+{{{#!td
+Soil moisture at permanent wilting point (in m³/m³).
+}}}
+|----------------
+{{{#!td style="vertical-align:top"
+[=#n_vangenuchten '''n_vangenuchten''']
+}}}
+{{{#!td style="vertical-align:top"
+R
+}}}
+{{{#!td style="vertical-align:top"
+9999999.9
+}}}
+{{{#!td
+Value of the coefficient {{{n}}} for the calculation of the hydraulic conductivity of soil in the parametrization after Van Genuchten (1980).
+}}}
+|----------------
+{{{#!td style="vertical-align:top"
+[=#root_fraction '''root_fraction''']
+}}}
+{{{#!td style="vertical-align:top"
+R(4)
+}}}
+{{{#!td style="vertical-align:top"
+4*9999999.9
+}}}
+{{{#!td
+Root distribution 
+{{{
+#!Latex
+R_k
+}}}
+over the soil layers.
+
+It must hold that
+{{{
+#!Latex
+\sum_\limits_{k=1}^4 R_k = 1.
+}}}
+
+}}}
+|----------------
+{{{#!td style="vertical-align:top"
+[=# '''''']
+}}}
+{{{#!td style="vertical-align:top"
+R
+}}}
+{{{#!td style="vertical-align:top"
+
+}}}
+{{{#!td
+
+}}}
+
+
+
+|----------------
+{{{#!td style="vertical-align:top"
+[=# '''''']
+}}}
+{{{#!td style="vertical-align:top"
+R
+}}}
+{{{#!td style="vertical-align:top"
+
+}}}
+{{{#!td
+
+}}}
+|----------------