Changes between Version 26 and Version 27 of doc/app/chemistry_parameters
- Timestamp:
- Oct 12, 2018 8:29:19 AM (7 years ago)
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doc/app/chemistry_parameters
v26 v27 77 77 78 78 Allowed are the values 'dirichlet' (cs(k=nz+1) does not change during the run), 'neumann' (cs(k=nz+1) = cs(k=nz)), 79 80 ### RFo No idea whther this really works für cs81 79 and 'initial_gradient' . 82 80 With the 'initial_gradient' boundary condition the value of the scalar concentration gradient at the top is calculated from the initial scalar concentration profile (see cs_surface, cs_vertical_gradient) by: bc_cs_t_val = (cs_init(k=nz) - ss_init(k=nz-1)) / dzu(nz). Using this value (assumed constant during the run) the concentration boundary values are calculated as 83 84 85 81 cs(k=nz+1) = cs(k=nz) + bc_cs_t_val * dzu(nz+1) 86 87 82 (up to k=nz the prognostic equation for the chemical species concentration is solved). 88 ###89 83 90 84 When a constant cs flux is used at the top boundary (top_csflux), bc_cs_t = 'neumann' must be used, because otherwise the resolved scale may contribute to the top flux so that a constant value cannot be guaranteed. … … 105 99 |---------------- 106 100 {{{#!td style="vertical-align:top; width: 150px" 107 [=#chem_debug '''chem_debug'n'''']108 }}} 109 {{{#!td style="vertical-align:top; width: 50px" 110 XXX 111 }}} 112 {{{#!td style="vertical-align:top; width: 75px" 113 YYY 114 }}} 115 {{{#!td 116 ZZZ 101 [=#chem_debug0 '''chem_debug0 '''] 102 }}} 103 {{{#!td style="vertical-align:top; width: 50px" 104 L 105 }}} 106 {{{#!td style="vertical-align:top; width: 75px" 107 .FALSE. 108 }}} 109 {{{#!td 110 Extra print output of chemistry variables. 117 111 }}} 118 112 |---------------- … … 134 128 }}} 135 129 {{{#!td style="vertical-align:top; width: 50px" 136 XXX 137 }}} 138 {{{#!td style="vertical-align:top; width: 75px" 139 YYY 140 }}} 141 {{{#!td 142 ZZZ 130 R(99,100) 131 }}} 132 {{{#!td style="vertical-align:top; width: 75px" 133 9999999.9_wp 134 }}} 135 {{{#!td 136 Height levels above ground (in m) to go with [#cs_profile cs_profile] in order to define initial profiles of chemical species. 137 The first index refers to the chemical compound, the second to height level. 138 Example:\\ 139 cs_heights(1,:) = 0.0, 5.0, 15.0, 25.0, 35.0, 45.0, 55.0, 65.0, 75.0, 85.0, 95.0, ! heights for profile of first compound\\ 140 cs_heights(2,:) = 0.0, 5.0, 15.0, 25.0, 35.0, 45.0, 55.0, 65.0, 75.0, 85.0, 95.0, ! heights for profile of second compound\\ 141 143 142 }}} 144 143 |----------------