Reference &  User Manual 
  Release Level 7.0 Release Date 2016 12 Revision Level beta  
Last modified on:   Saturday, 5-Nov-16 20:07 CET
Meteorological Scenarios

Meteorological scenarios are consistent and complete data sets of the meteorological variables, primarily wind field and temperature, required by WaterWare (model time series).

Meteorological scenarios are named OBJECTS that are derived from the monitoring data from one or more applicable (nearby) meteorological stations, the interpolation of several station, of from some meteorological model or pre-processor including the optional non-hydrostatic meteorological forecasting model MM5 that operates with global meteorological model data as its input.

Meteorological scenarios are generated by model specific Meteorological Scenario Generators that ensures synchronization, completeness and consistency of the meteorological time series data for the respective simulation model or their dedicated meteorological pre-processors.

Access to a Meteorological Scenario is through a BUTTON Meteorologyat the corresponding model scenario.

The key hydro-meteorological parameters used in WaterWare are precipitation and air temperature; Additional parameters that can be extracted from MM5 model runs include:

  • wind speed and direction
  • humidity, soil moisture
  • evapotranspiration
  • solar raditation

A METEO SCENARIO OBJECT is described by the

  1. standard OBJECT header;
  2. Description of the generation method and parameters where applicable, and the raw meteo data (station) it was generated from.
  3. Basic attributes:
    • Start date and duration (inherited from the corrsponding model scenario)
    • Model Domain for which the scenario is applicable
    • Grid resolution
    • Time series for (anemometric) station specific or spatially averaged wind speed, direction, and temperature.
    • Time series for (upper atmosphere) station specific or spatially averaged wind speed and direction.

  4. Meteo Station Selection:

    the currently selected meteo station is shown by name, the name is a link to the station OBJECT.

    Once a station is being displayed, it can be added to the list with a SELECT button. The DEFAULT station (for a new domain) is the nearest (measured from the center point of the model domain) meteorological monitoring station with available real-time data.

    Any but the last of the stations on the list can be dropped (excluded) from consideration by thre user.

    If consistent results are available, the user can choose the parameter, vertical layer and time step for matrix display.

Data Requirements

The maintain a uniform and consisten data interface, the scenario generators read their data from one or more meteorological monitoring stations that can include virtual stations representing upper air (geostrophioc) data.

The stations required for each model scenario are defined in the respective scernarion, and can be modified (selected and de-selected) by the user interactively. For interactive scenarios, this selection becomes effective immediately for the current run, for scheduled runs it will become effective for the next model run and thereafter.

When a meteorological scenario is requested, the preprocessor first checks data availability for the stations defined for that scenario, and for the period selected. If no data can be found, the run or model scenario is aborted and a corresponding error message is logged in the System Log Files

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