How to read a Wind Rose
The is used to provide a synthetic overview of and frequency distribution at a given location.
Wind speed can be estimated with several scales. One of the first was created by Britain's Admiral Sir Francis Beaufort (1805). The is an empirical scale that relates wind speed to observed conditions at sea or on land. The original scale goes from 0 to 12, but the Clima Tool will show the results from 1 to 9 since it is not common to construct buildings in places with recurrent winds over 100 km/h.
Each circle segment shows the winds according to the cardinal direction along which they blow from.
The length of each radius around the circle shows how often the wind blew from that direction. A click of the mouse over each slice of the rose shows therefore the recurrence frequency in which the wind of such intensity is repeated over the analyzed period.
