Changes between Initial Version and Version 1 of doc/app/bulk_cloud_parameters

Timestamp:

Sep 24, 2018 4:09:30 PM (6 years ago)

Author:

schwenkel

Comment:

--

doc/app/bulk_cloud_parameters

@@ +1 @@
+[=#cphys '''Cloud physics:]\\
+||='''Parameter Name'''  =||='''[../fortrantypes FORTRAN]\\[../fortrantypes Type]'''  =||='''Default\\Value'''  =||='''Explanation'''  =||
+|----------------
+{{{#!td style="vertical-align:top;width: 150px"
+[=#aerosol_bulk '''aerosol_bulk''']
+}}}
+{{{#!td style="vertical-align:top;width: 50px"
+C*20
+}}}
+{{{#!td style="vertical-align:top;width: 75px"
+'nacl'
+}}}
+{{{#!td
+Parameter to choose the used aerosol type. Currently three approximations are available:\\\\
+'' 'nacl' ''\\
+      It is assumed that the aerosol is nacl. \\\\
+'' 'c3h4o4' '' \\
+      It is assumed that the aerosol is malonic acid.\\\\
+'' 'nh4no3' '' \\
+      It is assumed that the aerosol is ammonium sulfate. \\\\
+The molecular weight, denisty and the solubility (vant Hoff factor)  of this specific type is considered.
+}}}
+|----------------
+{{{#!td style="vertical-align:top;width: 150px"
+[=#call_microphysics_at_all_substeps '''call_microphysics_at_all_substeps''']
+}}}
+{{{#!td style="vertical-align:top;width: 50px"
+L
+}}}
+{{{#!td style="vertical-align:top;width: 75px"
+.F.
+}}}
+{{{#!td
+Parameter to control how often 2-moment cloud microphysics ([#cloud_scheme cloud_scheme] = 'seifert_beheng') are computed during a model time step. Using the default, cloud microphysics are computed once before the time step. Using call_microphysics_at_all_substeps = .T., cloud microphysics are computed before every substep of the applied time step scheme, which is, however, not necessary to gain acceptable results. Note that advection and diffusion of rainwater mixing ratio (qr) and rain drop concentration (nr) are not affected by this parameter (these processes are computed as any other scalar).
+}}}
+|----------------
+{{{#!td style="vertical-align:top;width: 150px"
+[=#c_sedimentation '''c_sedimentation''']
+}}}
+{{{#!td style="vertical-align:top;width: 50px"
+R
+}}}
+{{{#!td style="vertical-align:top;width: 75px"
+2.0
+}}}
+{{{#!td
+Courant number for sedimentation process. 
+
+A Courant number that is too big inhibits microphysical interactions of the sedimented quantity. There is no need to use the limiter ([#limiter_sedimentation limiter_sedimentation]) if [#c_sedimentation c_sedimentation] <= 1.0.
+
+This parameter only comes into effect if the microphysical cloud scheme according to Seifert and Beheng (2006) is used ([#cloud_scheme cloud_scheme] = 'seifert_beheng').
+}}}
+|----------------
+{{{#!td style="vertical-align:top"
+[=#curvature_solution_effects_bulk '''curvature_solution_effects_bulk''']
+}}}
+{{{#!td style="vertical-align:top"
+L
+}}}
+{{{#!td style="vertical-align:top"
+.F.
+}}}
+{{{#!td
+Parameter to switch on an activation scheme which considers curvature and solution effects of cloud droplet activation. Therefore a parameterization of Khvorostyanov and Curry, 2006 is used. The physio-chemical aerosol properties can be prescribed with [#aerosol_bulk aerosol_bulk], [#dry_aerosol_radius dry_aerosol_radius] and [#sigma_bulk sigma_bulk]. 
+}}}
+|----------------
+{{{#!td style="vertical-align:top;width: 150px"
+[=#cloud_water_sedimentation '''cloud_water_sedimentation''']
+}}}
+{{{#!td style="vertical-align:top;width: 50px"
+L
+}}}
+{{{#!td style="vertical-align:top;width: 75px"
+.F.
+}}}
+{{{#!td
+Parameter to consider sedimentation of cloud water according to Ackermann et al. (2009, MWR).
+
+This parameter only comes into effect if the microphysical cloud scheme according to Seifert and Beheng (2006) ([#cloud_scheme cloud_scheme] = 'seifert_beheng') or by Kessler (1969)  ([#cloud_scheme cloud_scheme] = 'kessler') is used.
+}}}
+|----------------
+{{{#!td style="vertical-align:top"
+[=#dry_aerosol_radius '''dry_aerosol_radius''']
+}}}
+{{{#!td style="vertical-align:top"
+R
+}}}
+{{{#!td style="vertical-align:top"
+0.05E-6
+}}}
+{{{#!td
+The mean geometric radius of the dry aerosol spectrum. 
+}}}
+|----------------
+{{{#!td style="vertical-align:top;width: 150px"
+[=#limiter_sedimentation '''limiter_sedimentation''']
+}}}
+{{{#!td style="vertical-align:top;width: 50px"
+L
+}}}
+{{{#!td style="vertical-align:top;width: 75px"
+.T.
+}}}
+{{{#!td
+Slope limiter in sedimentation process according to Stevens and Seifert (2008). 
+
+This parameter only comes into effect if the microphysical cloud scheme according to Seifert and Beheng (2006) is used ([#cloud_scheme cloud_scheme] = 'seifert_beheng').
+
+If [#c_sedimentation c_sedimentation] <= 1.0 there is no need to use the limiter.
+}}}
+|----------------
+{{{#!td style="vertical-align:top;width: 150px"
+[=#na_init '''na_init''']
+}}}
+{{{#!td style="vertical-align:top;width: 50px"
+R
+}}}
+{{{#!td style="vertical-align:top;width: 75px"
+100.0E6
+}}}
+{{{#!td
+Background dry aerosol concentration. If [#cloud_scheme cloud_scheme] = 'morrison' is used this parameter replaces [#nc_const nc_const]. Activation is parameterized assuming that the number of activated CCN cannot be larger than na_init. 
+This parameter only comes into effect if the microphysical cloud scheme according to Morrison and Grabowski (2007) is used ([#cloud_scheme cloud_scheme] = 'morrison').
+}}}
+|----------------
+{{{#!td style="vertical-align:top;width: 150px"
+[=#nc_const '''nc_const''']
+}}}
+{{{#!td style="vertical-align:top;width: 50px"
+R
+}}}
+{{{#!td style="vertical-align:top;width: 75px"
+70.0E6
+}}}
+{{{#!td
+Fixed cloud droplet number density (in 1/m^3^). The default value is applicable for marine conditions.
+
+This parameter only comes into effect if the microphysical cloud scheme according to Seifert and Beheng (2006) is used ([#cloud_scheme cloud_scheme] = 'seifert_beheng').
+}}}
+|----------------
+{{{#!td style="vertical-align:top;width: 150px"
+[=#collision_turbulence '''collision_turbulence''']
+}}}
+{{{#!td style="vertical-align:top;width: 50px"
+L
+}}}
+{{{#!td style="vertical-align:top;width: 75px"
+.F.
+}}}
+{{{#!td
+Turbulence effects on the collision process, namely the autoconversion and accretion according to Seifert, Nuijens and Stevens (2010). 
+
+This parameter only comes into effect if the microphysical cloud scheme according to Seifert and Beheng (2006) is used ([#cloud_scheme cloud_scheme] = 'seifert_beheng').
+}}}
+|----------------
+{{{#!td style="vertical-align:top"
+[=#sigma_bulk '''sigma_bulk''']
+}}}
+{{{#!td style="vertical-align:top"
+R
+}}}
+{{{#!td style="vertical-align:top"
+2.0
+}}}
+{{{#!td
+The dispersion of the dry aerosol spectrum.
+}}}
+|----------------
+{{{#!td style="vertical-align:top;width: 150px"
+[=#ventilation_effect '''ventilation_effect''']
+}}}
+{{{#!td style="vertical-align:top;width: 50px"
+L
+}}}
+{{{#!td style="vertical-align:top;width: 75px"
+.T.
+}}}
+{{{#!td
+Parameter to consider the ventilation effect on evaporation of raindrops according to Seifert (2008).
+
+This parameter only comes into effect if the microphysical cloud scheme according to Seifert and Beheng (2006) is used ([#cloud_scheme cloud_scheme] = 'seifert_beheng').
+}}}