Changes between Version 8 and Version 9 of doc/app/chemdesc
- Timestamp:
- Feb 19, 2019 12:39:04 PM (6 years ago)
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doc/app/chemdesc
v8 v9 10 10 The main routines and the driver of the chemistry module is included in [[source:palm/trunk/SOURCE/chemistry_model_mod.f90|chemistry_model_mod.f90]], subroutines are in `chem_gasphase_mod.f90`, `chem_photolysis_mod.f90`, and `chem_emissions.f90`. 11 11 12 The module `chem_gasphase_mod.f90`, where the gas phase chemistry rate equations are solved within PALM-4U depends on the chosen chemical mechanism. `chem_gasphase_mod.f90` is generated by a preprocessor that is based on the Kinetic Pre-Processor KPP ( Damian et al. (2002), Sandu et al. (2006)), Release 2.2.3 from November 2012 (http://people.cs.vt.edu/asandu/Software/Kpp/, kpp-2.2.3.tar.gz) and an adapted version of the KPP postprocessor KP4 (Jöckel et al (2010)). This adapted Version of KP4 which converts the KPP-generated code to a PALM-4U module is named kpp4palm.12 The module `chem_gasphase_mod.f90`, where the gas phase chemistry rate equations are solved within PALM-4U depends on the chosen chemical mechanism. `chem_gasphase_mod.f90` is generated by a preprocessor that is based on the Kinetic Pre-Processor KPP ([wiki:doc/app/chemref Damian et al. (2002), Sandu et al. (2006))], Release 2.2.3 from November 2012 (http://people.cs.vt.edu/asandu/Software/Kpp/, kpp-2.2.3.tar.gz) and an adapted version of the KPP postprocessor KP4 ([wiki:doc/app/chemref Jöckel et al (2010)]). This adapted Version of KP4 which converts the KPP-generated code to a PALM-4U module is named kpp4palm. 13 13 14 14 The chemical preprocessor is located in the subdirectory `UTIL/chemistry/gasphase_preproc`. 15 15 16 Currently, areosol compounds can be considered either as passive compounds or the sectional aerosol module [wiki:salsa SALSA] ( Kokkola et al. (2008)) can be used to simulate the aerosol particle concentrations, and size distributions.16 Currently, areosol compounds can be considered either as passive compounds or the sectional aerosol module [wiki:salsa SALSA] ([wiki:doc/app/chemref Kokkola et al. (2008)]) can be used to simulate the aerosol particle concentrations, and size distributions. 17 17 18 18 19 Deposition processes are also taken into account in the chemistry model. The deposition of particles is derived following Zhang et al. (2001) while gases are deposited using the DEPAC model following van Zanten et al. (2010).19 Deposition processes are also taken into account in the chemistry model. The deposition of particles is derived following [wiki:doc/app/chemref Zhang et al. (2001)] while gases are deposited using the DEPAC model following [wiki:doc/app/chemref van Zanten et al. (2010)]. 20 20 21 21 A main factor influencing atmospheric chemistry are the emissions of reactive compounds. In PALM-4U emissions can be applied in three different ways:\\