Air is always moving and flowing and when the flow is strong we can feel it on our skin and hair. We can hear it in the trees and sometimes whistling around buildings. And we can see it swaying trees and blowing leaves and dust around. We’re lucky in New Zealand that when it’s windy our air pollution gets blown away over the ocean where it can’t hurt anyone. When it’s still and the air isn’t moving much, then our air pollution has no way to go anywhere, so it just drifts about.
Hauāuru, the West Wind
Hauāuru is also known as the West Wind, listen to the beautiful music he makes with the trees in the Waitakere Ranges
Perhaps you have experienced Hauāuru's musical ability when camped out in the bush and listened in awe to the muted rustling of the leaves accompanied by the subdued caressing of branch against branch, which as Hau's mood changed became a crescendo of Sound and movement. It was such Sweet love Songs and wild stirring chants that drifted Over the Waitakere Ranges and charmed Wairaka, the wife of Tamatea-O-te Ra, a powerful mythical hero who dwelt in the volcanic cones of the Tamaki isthmus. Tamatea would now and again leave home to visit other territories, where his presence would be disclosed by earthquakes and other underground activity.
When Tamatea was away visiting, Hau would sigh gently in the forest trees or whisper words of love and waft them over Sweet-scented trees to Wairaka at her home on the Volcanic Cone of Owairaka, Mt Albert. (J. Diamond & B. Hayward, 1979. p 32)
Wind Speed in Titirangi (Auckland)
The air around us is never really still. The atmosphere has areas of high and low pressure and just like when you sit on a whoopee cushion and air comes out of it, the air goes from areas of high pressure to areas of low pressure and that is wind. Although Wellington and New Plymouth experience faster winds, Auckland is a windy city. Auckland’s wind is in part why the air is rather clean most of the time but in winter mornings, when the wind is barely perceptible, the pollutants accumulate in the city. The plot below shows the wind speed (in metres per second) measured in Titirangi over the past few days. (Copyright: Data from Open Weather Map)
NIWA Weather - Auckland
http://www.project-ukko.net/map.html - Interactive wind and climate map
http://hint.fm/wind/ - Real time wind map of the US
https://www.ventusky.com/ - Interactive wind, climate and weather map
https://earth.nullschool.net/#current/particulates/surface/level/overlay=suexttau/orthographic=-179.54,-35.40,1202/loc=174.939,-36.870 - Interactive climate map of the earth
https://www.education.com/activity/article/where_wind_comes_from_fourth/ - Wind experiment