Wind representation

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Wind representation

Author	Message
acassata	acassata posted 2/23/2016 4:05:17 PM HOT Topic Details Share Topic
Group: Forum Members Posts: 33, Visits: 277	I found discrepancies between wind numeric value and its representation The wind vector shows 5 kt less than the numeric value when the speed is divisible by 5 kt. If it is due to unit conversion and rounded value, e.g. 64 km/h = ~34.56 kt, rounded value = 35 kt, I suggest to round the vector to the closest value instead of rounding down, in the example vector of 35 kt instead of 30 kt. Moreover, it is possible to show the wind vector for 5 kt with the short line at the second position like the third picture source: https://upload.wikimedia.org/wikipedia/commons/c/c6/Wind_barbs.gif Alexandre Based at LSGL (Lausanne - La Blécherette, in Switzerland)
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Tim Dawson	Tim Dawson posted 2/24/2016 12:50:58 PM ANSWER Post Details Share Post
Group: Forum Members Posts: 8.1K, Visits: 9.3K	We do not think there is anything wrong with the wind representations in SkyDemon. As you correctly guessed, the textual reading of the velocity is subject to rounding and therefore a value of 34.6 will be displayed as 35. When drawing the graphical barbs you'd only get the three 10 knot barbs though. We're quite happy with this state of affairs.
	Reply Like 66
Tim Dawson	Tim Dawson posted 3/10/2016 5:03:42 PM ANSWER Post Details Share Post
Group: Forum Members Posts: 8.1K, Visits: 9.3K	why is it better to show 34.6 with three 10 knot barbs than with three 10 knot barbs + one 5 knot barb? Because the wind value being shown is less than 35 knots.
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