Changes between Version 56 and Version 57 of doc/app/chemistry_parameters

Timestamp:

Oct 16, 2018 12:15:30 PM (7 years ago)

Author:

forkel

Comment:

--

doc/app/chemistry_parameters

@@ -39 +39 @@
 
 A main factor influencing atmospheric chemistry are the emissions of reactive compounds. In PALM4U emissions can be applied in three different ways:\\
-    * PARAMETERIZED: Traffic emissions are parameterized depending on the the values of street_type in the static file. Emission values for each street type and chemical compound must be supplied in the namelist as described below. No other emissions are considered. street_type can be obtained from Openstreetmap.\\
+    * PARAMETERIZED: Traffic emissions are parameterized depending on the the values of street_type in the static file. Emission values for each street type and chemical compound must be supplied in the namelist as described below. No other emissions are considered. street_type can be obtained from `Openstreetmap`.\\
     * DEFAULT: Gridded yearly emissions must be supplied by the user as specified in the PIDS document (see sample emissions file). Typical temporal variations are apllied by PALM4U.\\
     * PRE-PROCESSED: Preprocessed hourly (other temporal intervals will be possible in later versions) 3-d emission fields must be supplied by the user.
@@ -75 +75 @@
 Bottom boundary condition of the chemical species (`cs`) concentration.
 
-Allowed values are  'dirichlet'  (cs(k=0) = const. = cs_surface + cs_surface_initial_change; When a constant surface concentration flux is used (surface_cs_flux) or emissions are applied ('do_emis' = .T.), bc_cs_b =  'neumann'  must be used. 
+Allowed values are  'dirichlet'  (cs(k=0) = const. = cs_surface + cs_surface_initial_change; When a constant surface concentration flux is used (surface_cs_flux) or emissions are applied (do_emis = .T.), bc_cs_b =  'neumann'  must be used. 
 }}}
 |----------------
@@ -307 +307 @@
 }}}
 {{{#!td
-Selection and steering of the chemistry solver. In order to offer more control over the integrator, the KPP-generated Integrator subroutine (e.g. SUBROUTINE rosenbrock in chem_gasphase_mof.f90) provides the optional input parameters ICNTRL_U and RCNTRL_U. Each of them is an array of 20 elements that allow the fine-tuning of the integrator, e.g. by setting a particular Integrator method, tolerances, minimum and maximum step sizes, etc. 
+Selection and steering of the chemistry solver. In order to offer more control over the integrator, the KPP-generated Integrator subroutine (e.g. SUBROUTINE rosenbrock in chem_gasphase_mod.f90) provides the optional input parameters ICNTRL_U and RCNTRL_U. Each of them is an array of 20 elements that allow the fine-tuning of the integrator, e.g. by setting a particular Integrator method, tolerances, minimum and maximum step sizes, etc. 
 
 Note: For input parameters equal to zero the default values of the corresponding variables are used.\\
@@ -342 +342 @@
 }}}
 {{{#!td
-Index for identifying MAIN streets following street type classes from OpenStreetMap
+Index for identifying MAIN streets following street type classes from `OpenStreetMap`.
 }}}
 |----------------
@@ -355 +355 @@
 }}}
 {{{#!td
-Maximum index value for identifying ALL (MAIN and SIDE) streets following street type classes from OpenStreetMap
+Maximum index value for identifying ALL (MAIN and SIDE) streets following street type classes from `OpenStreetMap`.
 }}}
 |----------------
@@ -368 +368 @@
 }}}
 {{{#!td
-Mode of chemistry emissions.
-Possible values are: DEFAULT, EXPERT and PARAMETERIZED (at the moment the values have to be in capital letters)
+Mode of chemistry emissions.\\
+Possible values are: 
+   * 'DEFAULT'  Input of yearly gridded emissions and MDH courses.
+   * 'PRE-PROCESSED' Input of fully preprocessed emissions at fixed time intervals (currently only houly intervals) 
+   * 'PARAMETERIZED' Parameterized traffic emissions based on street types supplied in the _static Input file (e.g from `OpenStreetMap`.
+At the moment the values have to be in capital letters.
 }}}
 |----------------
@@ -412 +416 @@
 Currently two somple photolysis Options are available: 'constant' and 'simple'
 
- 'constant' uses photolysis freuencies at a zenith angle of 45 degrees.
-
- 'simple' describes parameterized time-dependent photolysis frequencies as supplied with MCM (http://mcm.leeds.ac.uk/MCM,  Saunders et al., 2003, Atmos. Chem. Phys., 3, 161-180). As the solar zenith angle must be available for this scheme, at least a simple radiation scheme must be active.
+ 'constant' uses photolysis frequencies at a zenith angle of 45 degrees.
+
+ 'simple' describes parameterized time-dependent photolysis frequencies as supplied with MCM (http://mcm.leeds.ac.uk/MCM,  Saunders et al., 2003, Atmos. Chem. Phys., 3, 161-180 [https://www.atmos-chem-phys.net/3/161/2003/]). As the solar zenith angle must be available for this scheme, at least the [#../radpar simple clear sky] radiation scheme must be active.
 
 }}}