Hi,

I have been looking at the La Haute Borne wind farm data for my research. The data descriptions are given here:

https://opendata-renewables.engie.com/explore/dataset/39490fd2-04a2-4622-9042-ce4dd34c2a58/information

As a CFD guy, I'm not well-informed about the wind turbine controls and nomenclature, and I was not able to find a reference manual for the said turbine (Senvion MM82) yet. Hence any help with the following questions will be well appreciated:

1. Is there a global standard for direction readings? For instance, are parameters like "Absolute_wind_direction" and "Nacelle_angle" measured zero for north (true or magnetic?), or east, or a pre-defined direction? This page (https://www.eol.ucar.edu/content/wind-direction-quick-reference) defines CW as positive (north:0deg, east:90deg ...), should I assume this for the said turbine?

2. Let us assume 0 means north, this means that 0 indicates a northerly (blowing from north to south) wind, right?

3. What does "corrected" indicate for these parameters exactly in that regard?

Some of the questions might sound silly :) But I don't know if those definitions are standard for all turbines, so I thought that referring to another turbine's descriptions or making assumptions might have misled me.

Thanks in advance,

Hüseyin