I'd like to report a bug in the aggregation algorithm for the wind direction. I realized it because in my self-made tables, the main wind direction for each month is always "North", which cannot be. I then investigated with the Wind Radar % graph and realized that depending on the resolution, the wind direction always converges towards north, even if it showed a different value when using very granular aggregation.
Means: When drawing the Wind Direction Radar % graph for a given month, using "min10" as resolution, you get a certain wind direction as the main direction in the graph. When using "day1" as resolution, you always end up with "North". It does not make sense that the main wind direction for a month significantly changes when using a different resolution.
Find attached my real-world example from my weather station for February 2016. I took 3 screenshots of the Wind Direction Radar % graph for different resolution values "min10", "hour1" and "day1". The drift towards "North" is obvious, and this happens for any month / aggregation. A correction of this aggregation behavior would be much appreciated. Thank you!
- Feb2016_min10.jpg (32.73 KiB) Viewed 21508 times
- Feb2016_hour1.jpg (26.66 KiB) Viewed 21508 times
- Feb2016_day1.jpg (27.7 KiB) Viewed 21508 times
