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• Why do I get an "Invalid Hour" error when trying to import from Excel?
  The most common reasons for this type of error is that the First Row to Import is not set correctly. For example, if your Excel ...
• Which versions of Excel are supported by the Import from Excel utility?
  Versions 5.0 and up are supported by the Import from Excel utility.  If you have a file that was created in an older version, open ...
• What are the minimum data requirements?
  WRPLOT View requires the following parameters in order to generate wind roses and frequency Tables: Year Month Day Hour Wind Speed Wind Direction Precipitation (only required for precipitation intensity) ...
• What is the different between blowing from and blowing to in the wind rose?
  Blowing From and Blowing To are two different conventions for describing wind direction. Blowing From indicates the direction that the wind is coming from (e.g. a ...
• Why do two files (in different formats) with the same data show different wind roses?
  In some meteorological files, wind directions are reported to the nearest 10 degrees. To avoid a bias in the wind rose plots toward the cardinal ...
• What is wrong with my met file format?
  If you have more missing hours than expected, strange results, or if your get an Unknown File Format message, there may be an issue with ...
• Where is my activation code?
  If you registered for one of the Lakes freeware packages but did not receive an email with your activation code, there are several possibilities: You specified ...
• What are the area source dimensions?
  The dimensions of an area source in Screen View are defined in terms of the Larger side and the Smaller side.  A specific orientation of ...
• Why do the automated a discrete distance options give different results at the same distance?
  Technically, the concentration should be the same at the same distances. However, you are likely seeing ...
• What is the anemometer height?
  The anemometer height is the height above the ground at which the wind speed is measured. The default value for the anemometer height is ...
• What is the difference between "Complex" and "Complex + Simple" terrain?
  Complex terrain is any terrain that is located above the stack height or above the release height. Terrain below the release height is referred ...
• Which meteorology option should I use?
  In general, the Full Meteorology option should be chosen as it covers all possible scenarios and provides the most conservative estimate when running SCREEN3 . ...
• What restrictions does the complex terrain option impose?
  There are two cases which users should be aware of: The Meteorology option (options in the Meteorology tab) is not available for Complex Terrain. ...
• Why do I need to specify a plot file along with my POST file?
  When you specify a POST file to generate percentiles from Percent View will ask for a plot file as well if the POST file is ...
• What rights do I need when installing any software from Lakes Environmental?
  Lakes Environmental software applications must be installed under FULL administrative rights.  Failure to do this may result in an unsuccessfully installation or issues running the software. ...
• What does "installation files are corrupt" mean?
  Sometimes during the installation of Lakes software, an error message may be given that some of the installation files are corrupt.  Please try the following:   Disk ...
• Why can't I export my project data into Google Earth?
  Users may encounter an error when exporting the project data into Google Earth, which could potentially occur when the KML file association is not directly ...
• What columns of data does WRPLOT read?
  WRPLOT View checks only the date, time, wind speed, and wind direction of met data files. In the case of SAMSON files, WRPLOT View is ...