Changes between Version 14 and Version 15 of doc/app/chemdesc
- Timestamp:
- Nov 25, 2019 10:57:40 AM (5 years ago)
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doc/app/chemdesc
v14 v15 21 21 A main factor influencing atmospheric chemistry are the emissions of reactive compounds. In PALM-4U emissions can be provided by the user in different levels of detail (LOD):\\ 22 22 * LOD 0: 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. This option, named ’Parameterized’ mode, is currently only implemented for the traffic sector. No other emissions are considered. street_type can be obtained from `OpenStreetMap`.\\ 23 * LOD 1: Gridded annual emissions must be supplied by the user as specified in the [[attachment:wiki:doc/app/iofiles/pids:PALM_input_data_standard _v1.12.pdf|PIDS document]]. A typical diurnal profile based on urban traffic counts is implemented to disaggregate the total emission of the different species to hourly values.\\23 * LOD 1: Gridded annual emissions must be supplied by the user as specified in the [[attachment:wiki:doc/app/iofiles/pids:PALM_input_data_standard.pdf|PIDS document]]. A typical diurnal profile based on urban traffic counts is implemented to disaggregate the total emission of the different species to hourly values.\\ 24 24 * LOD 2: Gridded preprocessed hourly (other temporal intervals will be possible in later versions) emission information that is already temporally disaggregated must be supplied by the user. IMPORTANT: In this mode the initial date of the simulation has to coincide with the first day for which emission values are available. 25 25