version 22.04
Changes since release 21.10
The following lists shortly describe the main differences between release 22.04 and the release 21.10.
Bugfixes:
- several minor bugfixes
Changes:
- atmosphere-ocean coupling now realized via the PALM Model Coupler (PMC). Coupling setup is
given in the
&nesting_parameters
namelist and not viapalmrun
options-Y
and-y
any more. - MPI communication for exchange of radiosities in RTM is optimized
- performance optimization of Bott-Chlond advection scheme
- nesting parameter
nesting_bounds
allows for "3d_nested" (default), "cyclic_along_x", "cyclic_along_y", and "vertical_only" - nesting parameter
nesting_mode
only allows "one-way" or "two-way" - settings for the Lagrangian particle model in nested runs are only allowed for the root domain (they will be communicated to the childs)
- DEBUG files are by default only opened in case that debug output has been switched on (can be
oversteered by new parameter
open_debug_files
) - merge of PALM internal surface data types (only important for developers)
- parameter
recycling_method_for_thermodynamic_quantities
replaced byrecycling_mthod
, which now allows for "turbulent_fluctuation", "absolute_value", and "absolute_value_thermodynamic"
New features:
- TenStream 3d radiation model
- shading effects of buildings on the photolysis scheme
- ability to perform ensemble runs in case of long surface spinup times
- nesting allows for childs that extend over the whole root-domain width along x OR y
- pure vertical nesting allows for non-cyclic BCs and the turbulence recycling method (root domain and childs have the same horizontal size) (feature is still in experimental stage)
- cloud statics output (bulk cloud model)
- parameterized emissions from point sources (chemistry model)
- isorropia, a computationally efficient thermodynamic equilibrium model for multiphase multicomponent inorganic aerosols
- inclusion of radiation for default surfaces
- divergence as additional diagnostic output quantity