163 | | [=#dt_coupling '''dt_coupling'''] |
164 | | }}} |
165 | | {{{#!td style="vertical-align:top" |
166 | | R |
167 | | }}} |
168 | | {{{#!td style="vertical-align:top" |
169 | | 9999999.9 |
170 | | }}} |
171 | | {{{#!td |
172 | | Temporal interval for the data exchange in case of runs with [[coupled models]] (e.g. atmosphere - ocean) (in s).\\\\ |
173 | | This parameter has an effect only in case of a run with coupled models. It is available starting from version 3.3a.\\\\ |
174 | | This parameter specifies the temporal interval at which data are exchanged at the interface between coupled models (currently: interface between atmosphere and ocean). If this parameter is not explicitly specified in the parameter files for both coupled models, or if there is an inconsistency between its values for both coupled models, the execution will terminate and an informative [[error message]] will be given. In order to ensure synchronous coupling throughout the simulation, '''dt_coupling''' should be chosen larger than [../d3par#dt_max dt_max]. |
175 | | }}} |
176 | | |---------------- |
177 | | {{{#!td style="vertical-align:top" |
314 | | [=#<insert_parameter_name> '''<insert_parameter_name>'''] |
315 | | }}} |
316 | | {{{#!td style="vertical-align:top" |
317 | | <insert type> |
318 | | }}} |
319 | | {{{#!td style="vertical-align:top" |
320 | | <insert value> |
321 | | }}} |
322 | | {{{#!td |
323 | | <insert explanation> |
| 299 | [=#precipitation '''precipitation'''] |
| 300 | }}} |
| 301 | {{{#!td style="vertical-align:top" |
| 302 | L |
| 303 | }}} |
| 304 | {{{#!td style="vertical-align:top" |
| 305 | .F. |
| 306 | }}} |
| 307 | {{{#!td |
| 308 | Parameter to switch on the precipitation scheme.\\\\ |
| 309 | For precipitation processes PALM uses a simplified Kessler scheme. This scheme only considers the so-called autoconversion, that means the generation of rain water by coagulation of cloud drops among themselves. Precipitation begins and is immediately removed from the flow as soon as the liquid water content exceeds the critical value of 0.5 g/kg.\\\\ |
| 310 | The precipitation rate and amount can be output by assigning the runtime parameter [../d3par#data_output data_output] = '' 'prr*' '' or '' 'pra*','' respectively. The time interval on which the precipitation amount is defined can be controlled via runtime parameter [../d3par#precipitation_amount_interval precipitation_amount_interval]. |