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I know wind varies a lot with altitude and there are a lot of available maps of wind such as 2m, 10m, 850mb, 250mb, etc. What altitude wind are you showing on the vis and what are the heights of these wind farms?

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That's a great point and something I'm not making clear on the map. I've decided to use wind speeds at 100m on the map but there's an argument to offer data at multiple heights, particularly when looking at shorter onshore wind farms.

With that said, some of the wind turbines already reach 190m in height (eg. Hornsea One) and the mega-sized Haliade-X turbines at the upcoming Dogger Bank wind farm are 260m tall!

As Robin says, visualized wind data are 100m height from surface. That's what we've selected as the most appropriate average for wind farms. GFS contains different heights that we could allow choosing from.

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