Changes between Version 35 and Version 36 of doc/app/bulk_cloud_parameters
- Timestamp:
- Jan 15, 2021 2:37:30 PM (4 years ago)
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doc/app/bulk_cloud_parameters
v35 v36 6 6 [[NoteBox(note,This page is part of the **Bulk Cloud Model** (BCM) documentation. \\ Since revision 3274 the bulk cloud model (before named with '''microphysics''') \\ is modularized and has a own parameter namelist. \\It contains a listing of all PALM input parameters used to steer the BCM. \\ For an overview of all BCM-related pages\, see the **[wiki:doc/tec/microphysics Bulk Cloud Model main page]**.)]] 7 7 8 Using the BCM, equations for the total water mixing ratio and the liquid water potential temperature are solved instead of those for water vapor mixing ratio and potential temperature. The parameterization of cloud and precipitation physics can be steered with [#cloud_scheme cloud_scheme]. Also, cloud-top cooling by longwave radiation can be utilized (see [#cloud_top_radiation cloud_top_radiation]).\\\\ 9 The BCM requires [#humidity humidity] = ''.T.''.\\\\ 10 This BCM can not be applied if cloud droplets are simulated explicitly (see [#cloud_droplets cloud_droplets]). \\\\ 11 In case the BCM is used together with the urban- and/or land-surface model (USM and/or LSM) and the radiation model, please make sure to set [../radpar#radiation_interactions_on radiation_interactions_on] = .F. 8 12 \\ 9 13 == Parameter list == … … 30 34 It is assumed that the aerosol is ammonium sulfate. \\\\ 31 35 The molecular weight, denisty and the solubility (vant Hoff factor) of this specific type is considered. 32 }}}33 |----------------34 {{{#!td style="vertical-align:top"35 [=#bulk_cloud_model '''bulk_cloud_model''']36 }}}37 {{{#!td style="vertical-align:top"38 L39 }}}40 {{{#!td style="vertical-align:top"41 .F.42 }}}43 {{{#!td44 Parameter to switch on the bulk cloud model.\\\\45 For '''bulk_cloud_model''' = ''.T.'', equations for the total water mixing ratio and the liquid water potential temperature are solved instead of those for water vapor mixing ratio and potential temperature. The parameterization of cloud and precipitation physics can be steered with [#cloud_scheme cloud_scheme]. Also, cloud-top cooling by longwave radiation can be utilized (see [#cloud_top_radiation cloud_top_radiation]).\\\\46 '''bulk_cloud_model''' = ''.T.'' requires [#humidity humidity] = ''.T.''.\\\\47 This bulk cloud model can not be applied if cloud droplets are simulated explicitly (see [#cloud_droplets cloud_droplets]). \\\\48 In case the BCM is used together with the urban- and/or land-surface model (USM and/or LSM) and the radiation model, please make sure to set [../radpar#radiation_interactions_on radiation_interactions_on] = .F.49 36 }}} 50 37 |----------------