A wind rose is a visual tool used to give a concise view of how wind speed and direction are distributed at a given location. Typically, modern wind roses are digital and are able to represent data gathered over an short or extended periods of time to show the frequency of wind direction in all directions. This is a German wind rose that displays direction as well as their appropriate degrees.http://upload.wikimedia.org/wikipedia/commons/thumb/b/bb/Windrose.svg/600px-Windrose.svg.png
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