Changes between Version 58 and Version 59 of doc/app/land_surface_parameters

Timestamp:

Jun 30, 2017 12:14:48 PM (8 years ago)

Author:

maronga

Comment:

--

doc/app/land_surface_parameters

@@ -17 +17 @@
 |----------------
 {{{#!td style="vertical-align:top"
+[=#aero_resist_kray '''aero_resist_kray''']
+}}}
+{{{#!td style="vertical-align:top"
+L
+}}}
+{{{#!td style="vertical-align:top"
+.T.
+}}}
+{{{#!td
+If set to .TRUE., the parameterization of the aerodynamic resistance for vertical land surface elements follows Krayenhoff & Voogt (2007).
+}}}
+|----------------
+{{{#!td style="vertical-align:top"
 [=#alpha_vangenuchten '''alpha_vangenuchten''']
 }}}
@@ -78 +91 @@
 Open bottom (free drainage). Water can leave the soil model and conservation of water is not guaranteed.
 
+}}}
+|----------------
+{{{#!td style="vertical-align:top"
+[=#constant_roughness '''constant_roughness''']
+}}}
+{{{#!td style="vertical-align:top"
+L
+}}}
+{{{#!td style="vertical-align:top"
+.F.
+}}}
+{{{#!td
+Keep prescribed roughness length constant in time. This parameter only applied to [#water_surface water_surface]s, where the roughness lengths may depend on wind speed and usually follows parameterizations after Charnock (1955) and Beljaars (1994).
 }}}
 |----------------
@@ -455 +481 @@
 }}}
 {{{#!td
-Vegetation coverage of the surface (values of 0-1). The residual fraction is considered to be bare soil.
+Vegetation coverage of the surface (values of 0-1, pixel-size). The residual fraction is considered to be bare soil. For small grid spacings, the vegetation coverage can be considered to be one.
 }}}
 |----------------
@@ -470 +496 @@
 Vegetation type to be used in the land surface model.
 
-The user can choose from 19 different pre-defined vegetation classes according to the ECMWF-IFS classification:
+The user can choose from 19 different pre-defined vegetation classes in the style of the ECMWF-IFS classification:
 ||= '''vegetation_type'''=||='''Description''' =||
 || 0||user defined ||
@@ -518 +544 @@
 |----------------
 {{{#!td style="vertical-align:top"
+[=#water_temperature '''water_temperature''']
+}}}
+{{{#!td style="vertical-align:top"
+F
+}}}
+{{{#!td style="vertical-align:top"
+9999999.9
+}}}
+{{{#!td
+Water temperature (K), by default constant during the entire run.
+}}}
+|----------------
+{{{#!td style="vertical-align:top"
 [=#water_type '''water_type''']
 }}}
@@ -536 +575 @@
 
 ||= '''water_type'''=||='''water_temperature''' =||='''z0_water''' =||='''z0h_water''' =||
-||  1|| 283.0|| 0.01|| 0.001||
-||  2|| 283.0|| 0.01|| 0.001||
-||  3|| 283.0|| 0.01|| 0.001||
-||  4|| 283.0|| 0.01|| 0.001||
+||  1|| 283.0|| 0.01*|| 0.001*||
+||  2|| 283.0|| 0.01*|| 0.001*||
+||  3|| 283.0|| 0.01*|| 0.001*||
+||  4|| 283.0|| 0.01*|| 0.001*||
+* if [#constant_roughness constant_roughness]] = .T., the roughness lengths are calculated after each time step after Charnock (1955) and Beljaars (1994).
 
 }}}