you need
  • "Weather Report", a diary of observations, lined paper in a cage, ruler, pencil, spreadsheet Excel
training purposes rose winds often learn onlessons of local history and geography, as well as in building universities and colleges.Build a simple compass rose for a particular area is not difficult.This task is often performed by students grades 6-9.
In order to build your own wind rose needed data about the daily direction of the wind for a month or more.This information can be obtained independently by the dai
ly weather observations, and you can also take in the "Weather Report" during the study period.
then built the foundation charts for ordering observations.To do this, draw a coordinate system in which the major axis will reflect the four cardinal points of the compass - north, east, south and west.Then, through the center of coordinates spend an extra two axes and mark them intermediate points of the compass: the northeast, southeast, northwest and southwest.Each axis is uniform division, symbolizing the number of conventional days.If we consider the monthly period intervals may reflect the origin one day.
After performing the preparatory work can proceed directly to the construction of the wind rose.To do this, count the number of days during which the wind was blowing in a certain direction, and put them on each axis.The number of days in each direction check point.Then carefully connect the data points straight to obtain a closed polygon.The number of windless days (calm) mark in the circle center of the diagram.If during the studied period of time in some of the areas of the world there was no wind, the trunk is in place should be interrupted.
a result of work you get a wind rose for your area during the study period.Its rays will be uneven, and the longest of them will show the direction of the prevailing winds in the study area.
Diagrams of the wind rose and possible automatic way in the application Excel.To do this, create a file, in which are listed in tabular form the data available on the number of days and the wind direction.You should now have two columns: the names and areas of the world with the number of windy days.Then, in the menu "Insert" - "Chart" select "radar chart" and follow the advice of the master charting.The result is a graphical representation of the wind rose.