Windrose map

Windrose is a map diagram that is used to determine the air pressure velocity distribution for specific area. It is commonly used by meterologists to show wind frequency and strength. This windrose is color coded banded that are divided into increments to show wind speed ranges and seven cirecular lines that represent different frequencies.

Image found at:http://http://www.google.com/imgres?imgurl=http://comps.fotosearch.com/comp/IMP/IMP205/wind-rose_~1525R-143569.jpg&imgrefurl=http://www.fotosearch.com/IMP205/1525r-143569/&usg=__EvS7pDigdbAJV7Msm7Tfh05-_KA=&h=320&w=300&sz=30&hl=en&start=45&sig2=F3Lofw0VumrxoN_iwQHyCg&tbnid=vVxl4GCVo5sasM:&tbnh=138&tbnw=129&ei=BHxTTKOYE9KynAfsw7XpAw&prev=/images%3Fq%3Dwindrose%26hl%3Den%26biw%3D1276%26bih%3D579%26gbv%3D2%26tbs%3Disch:10%2C955&itbs=1&iact=hc&vpx=528&vpy=236&dur=2545&hovh=232&hovw=217&tx=103&ty=206&page=3&ndsp=22&ved=1t:429,r:17,s:45&biw=1276&bih=579