To get meaningful results, it's important to get the wind instruments high up in the air, away from trees, buidlings etc.

The pole itself is made from 1" high pressure water pipe and can be used with standard 1" BSP plumbing fittings for joining sections together.

The first section is stainless steel 1" as above and is concreted into the ground.
The next section is also stainless steel 1" , which then connects to the final section which tapers to 1/2":

The wind vane is mounted as above. The last section also has the guy rope attachments and the Anemometer