.lib to .tab

[Ashlin]

How do I covert a wind atlas file .lib to a wind speed and direction  .tab file?

[Joan]

Dear Ashlin,

There is no tool available to do this directly. The .omwc/.tab files store an observed wind climate (usually based on measurements), while .gwc/.lib files store a generalized wind climate (typically produced by WAsP). A generalized wind climate is different from an observed wind climate, which is why a direct conversion is not possible.

You can think of the generalized wind climate as the wind climate corresponding to idealized flat terrain with uniform surface roughness. If you want to calculate a wind climate for a specific height and position over real terrain, you can insert a 'reference site' in your WAsP project. You can then inspect the sector-wise Weibull distribution for this reference site, though, unfortunately, you won't be able to view a histogram similar to what is provided in a *.tab file.

Best regards,
Joan

[AMSA]

On 12/08/2024 at 12:14 PM, Joan said:

Dear Ashlin,

There is no tool available to do this directly. The .omwc/.tab files store an observed wind climate (usually based on measurements), while .gwc/.lib files store a generalized wind climate (typically produced by WAsP). A generalized wind climate is different from an observed wind climate, which is why a direct conversion is not possible.

You can think of the generalized wind climate as the wind climate corresponding to idealized flat terrain with uniform surface roughness. If you want to calculate a wind climate for a specific height and position over real terrain, you can insert a 'reference site' in your WAsP project. You can then inspect the sector-wise Weibull distribution for this reference site, though, unfortunately, you won't be able to view a histogram similar to what is provided in a *.tab file.

Best regards,
Joan

that's helpful, however, i would like to know how to properally format data from vortex to match the .tab observed wind data on WaSP as it keeps showing error when i insert the file