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WHI Weather Generator

The WHI Weather Generator is used to create the atmospheric boundary condition data required by the Visual HELP model.

The WHI Weather Generator is a built-in component for generating statistically reliable weather for virtually any location in the world for periods of up to 100 years. This powerful tool utilizes a database of more than 3000 international weather stations containing historical climatological data for each location. This database is fully customizable allowing the user to modify existing data or create new records to accommodate site specific weather conditions. Customized weather data can be entered manually or imported from standard NOAA format.

Note: The WHI Weather Generator utilizes the weather generation algorithm developed by the Agricultural Research Service of the U.S. Department of Agriculture (USDA). The WHI Weather Generator also includes the weather station database compiled by USDA containing statistically accurate summaries of the required climatological data for major weather stations located within the U.S.

The following section describes the steps required to generate weather data for your project location.

Generating Weather Data

To generate the weather data for a Visual HELP model, simply click the Shining Sun icon on the upper menu bar to launch the WHI Weather Generator. Once the WHI Weather Generator is launched the following window will appear.

This window displays the project location, the selected Meteo Station for the project, and the simulation length.

This window can be used to view and modify the default climatological settings for the project location. The Precipitation/Temperature tab can be used to view/modify the default settings for the monthly average precipitation and temperature values, while the Database tab can be used to view/modify all of the detailed climatological parameters.

The weather data can be generated by clicking the Horse Icon.

Once the weather data has been generated, you can display the simulated weather data (precipitation, radiation and temperature) using a built-in graphical component as shown below.

Once the weather data has been generated, it can be used as required by the Visual HELP model.

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