Example of a wind rose
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Example of a Wind Rose PowerPoint PPT Presentation


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Example of a Wind Rose. Broken into Sixteen Quadrants of Wind Direction. Broken into percent of occurrence. Broken into Wind Speed (units in km/hr). Example of South West (SW).

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Example of a Wind Rose

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Example of aWind Rose


Broken into Sixteen Quadrants of Wind Direction

Broken into percent of occurrence

Broken into Wind Speed (units in km/hr)


Example of South West (SW)

  • Based on a ratio of occurrences at the selected wind speed ranges and selected wind direction (SW) over the total collected data during the time period analyzed.

  • You could say that “~5% of the wind speed recorded was between 5 and 10 km/hr when the wind was blowing from the SW”


Example of aParticulate Matter Concentration Rose


Broken into Sixteen Quadrants of Wind Direction

Broken into percent of occurrence

Broken into PM2.5 mass concentration levels (units in µg/m³)


Example of South West (SW)

  • Based on a ratio of occurrences at the selected particulate matter (PM2.5) ranges and selected wind direction (SW) over the total collected data during the time period analyzed.

  • You could say that “~3% of the PM2.5 collected was between 10 and 20 µg/m³ when the wind was blowing from the SW”


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