air quality assessment & management
Reference and User Manual
AirWare   On-line Reference Manual
  Release Level 7.0
  Revision Level beta
  Release Date 2015 03

Last modified on:   Sunday, 19-Jul-15 21:51 CEST

INPUFF introduction       Model basics       PUFF scenarios       Meteorological scenarios

PUFF scenarios

PUFF csenarios are named objects, selectd from a scenario selector/navigator. The selector shows the following characteristics: scenario name, geographic location (model domain), owner, last modifications date. The selector also includes a NEW button to generate a new scenario.

Editing a scenario

Once selected from the list, a summary of the scenario is shown. This include a header with name, description, owner, creation and last modification dates.

A primary attribute of the scenario (read only) is the domain or location that is shown right under the header. A second basic attribute is the start date and time. This can be modified by the user within the constraints of data availability for the meteorological data set pre-processed for the domain.

The PUFF scenario consists of

  • A meteorological scenario or data set, consisting of several synchronized meteorological parameter time series generated with a meteo pre-processor; the set of synchronized meteorological parameter time series can be visualized in a separate pop-up window.
    Meteorological data sets are named OBJECTS that are derived from the monitoring data from an applicable (nearbey) meteorological station, the interpolation of several station, of from some meteorological model or pre-processor.
    Meteorological scenarios are generated by an separate Meteorological Scenario Generator that ensure synchronization and consistency of the meteorological time series data.
    The Meteorological Scenario Data applicable for PUFF must have a 15 minutes resolution or time step. For internal use in PUFF, they can be interpolated to a shorter intervall.

  • One or more emission sources defined by their location in the domain of the scenario; for each emission source, a set of stack parameters (constant) and time series of emisisons are defined, generated by an emission pre-processor. For a user selected pollutant (constrained by the emission data availble for the sources in the domain) for each of the emission time series, a multiplier can be defined, setting the multiplier to 0 will switch off that source. The set of individual source emission time series can be visualized in a separate pop-up window.
User options include therefore:
  1. Choice of scenario;
  2. Choice of pollutant;
  3. Choice of start time; (possibly also: duration of model run);
  4. Scaling of the emissions (multiplicative and additive term).
Please note that the emission data are automatically be loaded from the emission inventory, directly from available monitoring time serris, or generated from each source's average emission value and the temporal scaling factors.

Time step of the model (2 minutes) and duration (3 hours) of the episode are currently fixed.

Other data shown at the scvenario summary level include:

Defining a NEW Scenario

For a NEW scenario, the user can define:
  1. The domain from a pull-down menu of available domains with pre-processed DEM data;
  2. For each domain, one of an optional set of applicable meteorological monitoring stations; Once a station has been selected, the default start date is the most recent date from which a complete and consistent data set can be constructed for the duration of the episode.

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