Changes between Version 27 and Version 28 of doc/tec/releasenotes


Ignore:
Timestamp:
Oct 30, 2018 10:14:26 AM (7 years ago)
Author:
maronga
Comment:

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  • doc/tec/releasenotes

    v27 v28  
    3030
    3131=== New features: ===
     32* '''Multi Agent System''': Multi Agent System (MAS) has been added. It is modularized in the new file {{{multi_agent_system_mod.f90}}} and can be steered using the new namelist {{{agent_parameters}}}.
     33
     34* '''Chemistry''':
     35  * New module for chemistry emissions {{{chem_emissions_mod.f90} has been added.
     36  * Deposition of gases and particles added.
     37
     38* '''Nesting''' (PALM-4U):
     39  * RANS-RANS and RANS-LES nesting implemented.
     40  * Offline nesting implemented, using time-dependent boundary conditions at the model boundaries as well as time-dependent geostrophic forcing can be derived from the  output of the larger-scale COSMO model via the pre-processing tool INIFOR. Information is stored in dyanmic driver file. In order to initiate turbulence, a synthetic turbulence generator is applied at all lateral boundaries, which imposes turbulent fluctuations onto the COSMO-derived boundary values of the three velocity components, while the strength of fluctuations depend on the actual atmospheric conditions.
     41
     42* '''Biometeorology''' (PALM-4U):
     43  * The model now comprises a biometeorology module that can be used to determine the thermal indices Perceived Temperature (PT), Universal Thermal Climate Index (UTCI) and Physiologically Equivalent Temperature (PET). The indices are calculated as soon as the namelist {{{biometeorology_parameters}}} exists and can be disabled by setting e.g. {{{biom_pt = .F.}}}.
     44  * Human exposure model has been added that calculates the vitamin D3-weighted UV exposure of a human. It is modularized in the new file {{{uv_exposure_model_mod.f90}}} and can be steered using the new namelist {{{biometeorology_parameters}}}.
     45
     46* '''Virtual measurement module''': New module to perform virtual measurements {{{virtual_meas_mod.f90}}} has been added ('''beta version!''').
     47  * NetCDF data input of coordinates from 'real-world' measurements for point-, profile-, or trajectory measurements
     48  * automatic sampling and output of the quantities according to the measurement coordinates
    3249
    3350
    3451=== Major changes: ===
     52
     53* [[span(style=color: #FF0000, '''Model steering''']]:
     54  * The palmrun/palmbuild options {{{-h}}} and {{{-d}}} were renamed to {{{-c}}} and {{{-r}}}, respectively.
     55  * palmrun is steered via the files {{{.palm.iofiles}}} and {{{.palm.config}}}.
     56  * Fortran NAMELISTS in the parameter files were renamed and the deprecated NAMELISTS were removed.
     57
     58* '''Coupling to RRTMG''' (PALM-4U): The RRTMG and its coupling to PALM have been modified. Users that use RRTMG need to recompile the radiation model.
     59
    3560* '''Radiative transfer''' (PALM-4U): Radiative transfer model has been updated to version 3 (RTM 3.0).
    3661  * A new discretization scheme for direct solar, diffuse solar, emitted and reflected radiation substantially enhances scalability, especially on large domains and domains with complex terrain, reduces memory demands, eliminates the need for limiting maximum raytracing distance and reduces discretization error between close surfaces.
    3762  * A new raytracing algorithm improves performance of the preprocessing step and reduces the MPI overhead.
    3863  * Absorption and emission of longwave radiation by plant canopy (interacting with surfaces and sky) is now simulated in addition to shortwave radiation. LW and SW plant canopy radiative exchange is also used as an input for plant canopy transpiration.
     64  * The RTM now calculates mean radiant temperature (MRT) and also provides radiative inputs for calculation of human thermal comfort (MRT, PET) in the biometeorology module.
     65
     66* '''Ocean model''': The ocean code has been modularized and put into new file {{{ocean_mod.f90}}}. Turbulence generation by wave breaking, as well as the Stokes drift have been implemented in the default code. New namelist ocean_parameters
     67
     68* '''Date and time''' (PALM-4U): introduced changes to {{{date_and_time_mod.f90}}} for calculations of time indices such as hour of the day or month of the year, according to the running time of the simulation.
     69
     70* '''Chemistry''' (PALM-4U):
     71  * 2D and profile output added for chemistry variables
     72  * de-cycling of chemistry variables at lateral boundaries
     73  * additions to {{{UTILS/chemistry/gasphase_preproc}}} and modifications of {{{kpp4palm}}}: automatic preparation of vector version, inclusion of fixed species, more mechanisms added (CBM4, phstat, phstatp, simplep, passive1)
     74  * self-nesting (PALM-PALM) capability for chemistry added
     75
     76* '''Grid stretching''': The vertical grid stretching mechanism has been extended to allow more than one stretched region. In addition, stretching from coarse to fine as well as from fine to coarse is now possible.
     77
     78* '''NetCDF input''' (PALM-4U): Revision of NetCDF data input and extended checks for consistent static and dynamic input files
     79
     80* '''Particle model''': Reflection of Lagrangian particles at downward-facing surfaces implemented
     81
     82* '''Data output''': Output of unstructured surface data is enabled via a new namelist {{{surface_output_parameters}}}. This allows further processing of surface data into Paraview-readable files in order to display surface data such as surface temperature at building walls in an urban-environment
     83
     84
    3985
    4086=== Known bugs: ===